K
Khách

Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

Fish that live on the sea bottom benefit by being flat and hugging the contours. There are two very different types of flatfish and they have evolved in very separate ways. The skates and rays, relatives of the sharks have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings” They look as though they have been flattened but have remained symmetrical and “the right way up”. Conversely fish such as plaice, sole, and halibut have become flat in a different way. There are bony fish which have a marked tendency to be flattened in a vertical direction; they are much “taller” than they are wide. They use their whole vertically flattened bodies as swimming surfaces, which undulate through the water as they move. Therefore when * their ancestors migrated to the seabed, they lay on one side than on their bellies. However, this raises the problem that one eye was always looking down into the sand and was effectively useless - In evolution this problem was solved by the lower eye “moving” around the other side. We see this process of moving around enacted in the development of every young bony flatfish. It starts life swimming near the surface, and is symmetrical and vertically flattened, but then the skull starts to grow in a strange asymmetrical twisted fashion, so that one eye for instance the left, moves over the top of the head upwards, an old Picasso - like vision. Incidentally, some species of 20 flatfish settle on the right side, others on the left, and others on either side

According to the passage, the ability of a bony flatfish to move its eyes around is:

A. average

B. weak

C. excellent

D. variable

1
9 tháng 7 2018

Đáp án C

Theo đoạn văn, khả năng của một cá thân bẹt xương di chuyển mắt của nó xung quanh:

A. trung bình

B. yếu

C. tuyệt vời

D. biến hóa

Thông tin ở câu: “In evolution this problem was solved by the lower eye- "moving” around the other side. We see this process of moving around enacted in the development of every young bony flatfish.” (Trong tiến hóa vấn đề này đã được giải quyết bằng việc mắt dưới "di chuyển" xung quanh bên phía còn lại. Chúng ta có thể thấy quá trình di chuyển này đã được phổ biến trong sự phát triển của tất cả các cá thể cá thân bẹt xương trẻ.) => Từ giọng điệu của tác giả ta suy ra khả năng này của cá bẹt rất tuyệt vời

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questionsFish that live on the sea bottom benefit by being flat and hugging the contours. There are two very different types of flatfish and they have evolved in very separate ways. The skates and rays, relatives of the sharks have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings” They look as...
Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions

Fish that live on the sea bottom benefit by being flat and hugging the contours. There are two very different types of flatfish and they have evolved in very separate ways. The skates and rays, relatives of the sharks have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings” They look as though they have been flattened but have remained symmetrical and “the right way up”. Conversely fish such as plaice, sole, and halibut have become flat in a different way. There are bony fish which have a marked tendency to be flattened in a vertical direction; they are much “taller” than they are wide. They use their whole vertically flattened bodies as swimming surfaces, which undulate through the water as they move. Therefore when * their ancestors migrated to the seabed, they lay on one side than on their bellies. However, this raises the problem that one eye was always looking down into the sand and was effectively useless - In evolution this problem was solved by the lower eye “moving” around the other side. We see this process of moving around enacted in the development of every young bony flatfish. It starts life swimming near the surface, and is symmetrical and vertically flattened, but then the skull starts to grow in a strange asymmetrical twisted fashion, so that one eye for instance the left, moves over the top of the head upwards, an old Picasso - like vision. Incidentally, some species of 20 flatfish settle on the right side, others on the left, and others on either side.
Question:
The author mentions skates and rays as examples of fish that ____

A. become asymmetrical

B. appear to fly

C. have spread horizontally

D. resemble sharks

1
13 tháng 5 2018

Đáp án C

Kiến thức: Đọc hiểu

Giải thích: 

Tác giả đề cập đến cá đuối là ví dụ chó việc các dẹt ____

A. có thể xuất hiện bất thường             B. bay

C. dẹt ra theo chiều ngang                             D. giống với cá mập

Dẫn chứng: The skates and rays, relatives of the sharks have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings” They look as though they have been flattened but have remained symmetrical and “the right way up”.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. Fish that live on the sea bottom benefit by being flat and hugging the contours. There are two very different types of flatfish and they have evolved in very separate ways. The skates and rays, relatives of the sharks have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings” They look as though...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

Fish that live on the sea bottom benefit by being flat and hugging the contours. There are two very different types of flatfish and they have evolved in very separate ways. The skates and rays, relatives of the sharks have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings” They look as though they have been flattened but have remained symmetrical and “the right way up”. Conversely fish such as plaice, sole, and halibut have become flat in a different way. There are bony fish which have a marked tendency to be flattened in a vertical direction; they are much “taller” than they are wide. They use their whole vertically flattened bodies as swimming surfaces, which undulate through the water as they move. Therefore when * their ancestors migrated to the seabed, they lay on one side than on their bellies. However, this raises the problem that one eye was always looking down into the sand and was effectively useless - In evolution this problem was solved by the lower eye “moving” around the other side. We see this process of moving around enacted in the development of every young bony flatfish. It starts life swimming near the surface, and is symmetrical and vertically flattened, but then the skull starts to grow in a strange asymmetrical twisted fashion, so that one eye for instance the left, moves over the top of the head upwards, an old Picasso - like vision. Incidentally, some species of 20 flatfish settle on the right side, others on the left, and others on either side

The author mentions skates and rays as examples of fish that:

A. become asymmetrical

B. appear to fly

C. have spread horizontally

D. resemble sharks

1
22 tháng 1 2018

Đáp án C

Tác giả đề cập đến cá đuối quạt và cá đuối là những ví dụ về cá:

A. trở nên bất đối xứng

B. có vẻ có thể bay

C. trải rộng theo chiều ngang

D. giống với cá mập

Thông tin ở câu: “The skates and rays, relatives of the sharks have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings” They look as though they have been flattened but have remained symmetrical and “the right way up” (Cá đuối quạt và cá đuối, họ hàng của cá mập đã trở nên dẹt theo một cách có thể được gọi là rõ ràng. Cơ thể của chúng đã phát triển ngang để tạo thành những "đôi cánh" lớn. Chúng trông như thể chúng đã được làm phẳng nhưng vẫn cân đối và "phát triển đúng cách".)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. Fish that live on the sea bottom benefit by being flat and hugging the contours. There are two very different types of flatfish and they have evolved in very separate ways. The skates and rays, relatives of the sharks, have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings”. They look...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Fish that live on the sea bottom benefit by being flat and hugging the contours. There are two very different types of flatfish and they have evolved in very separate ways. The skates and rays, relatives of the sharks, have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings”. They look as though they have been flattened but have remained symmetrical and “the right way up”. Conversely, fish such as plaice, sole, and halibut have become flat in a different way. There are bony fish which have a marked tendency to be flattened in a vertical direction; they are much “taller” then they are wide. They use their whole, vertically flattened bodies as swimming surfaces, which undulate through the water as they move. Therefore, when their ancestors migrated to the seabed, they lay on one side than on their bellies. However, this raises the problem that one eye was always looking down into the sand and was effectively useless – In evolution this problem was solved by the lower eye “moving” around the other side. We see this process of moving around enacted in the development of every young bony flatfish. It starts life swimming near the surface, and is symmetrical and vertically flattened, but then the skull starts to grow in a strange asymmetrical twisted fashion, so that one eye, for instance the left, moves over the top of the head upwards, and old Picasso – like vision. Incidentally, some species of 20 flatfish settle on the right side, others on the left, and others on either side.

The author mentions skates and rays as examples of fish that _______.

A. become asymmetrical

B. appear to fly

C. have spread horizontally

D. resemble sharks

1
1 tháng 12 2018

Đáp án C.

Key words: skates and rays, examples.

Clue: The skates and rays, relatives of the sharks, have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings”. They look as though they have been flattened but have remained symmetrical: Những chiếc giày trượt và cá voi, những người họ hàng của cá mập, đã trở nên dẹt (có thể được gọi một cách rõ ràng. Cơ thể của chúng đã phát triển sang hai bên để tạo thành những bộ “cánh” tuyệt vời. Chúng trông như thể chúng đã được làm phẳng nhưng vẫn giữ được đối xứng

Phân tích:

A. become asymmetrical: trở nên xoắn đối – Sai vì loài cá này đối xứng kép.

B. appear to fly: có thể bay – Sai vì những chiếc cánh ở đây để trong ngoặc kép, không phải giống cánh thật.

C. have spread horizontally: trải rộng sang ngangĐúng. “Spread” là trải rộng dài, bài khóa đề cập đến những chiếc cánh lớn.

D. resemble sharks: trông giống cá mập – Sai vì loài cá đuối này chỉ có họ hàng với cá mập, ngoại hình của chúng không giống cá mập.

Vậy câu trả lời đúng là C. have spread horizontally

Read the following passage and mart the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 39. Fish that live on the sea bottom benefit by being flat and hugging the contours. There are two very different types of flatfish and they have evolved in very separate ways. The skates and rays, relatives of the sharks have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings” They...
Đọc tiếp

Read the following passage and mart the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 39.

Fish that live on the sea bottom benefit by being flat and hugging the contours. There are two very different types of flatfish and they have evolved in very separate ways. The skates and rays, relatives of the sharks have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings” They look as though they have been flattened but have remained symmetrical and “the right way up”. Conversely fish such as plaice, sole, and halibut have become flat in a different way. There are bony fish which have a marked tendency to be flattened in a vertical direction; they are much “taller” than they are wide. They use their whole vertically flattened bodies as swimming surfaces, which undulate through the water as they move. Therefore when their ancestors migrated to the seabed, they lay on one side than on their bellies. However, this raises the problem that one eye was always looking down into the sand and was effectively useless - In evolution this problem was solved by the lower eye “moving” around the other side. We see this process of moving around enacted in the development of every young bony flatfish. It starts life swimming near the surface, and is symmetrical and vertically flattened, but then the skull starts to grow in a strange asymmetrical twisted fashion, so that one eye for instance the left, moves over the top of the head upwards, an old Picasso - like vision. Incidentally, some species of 20 flatfish settle on the right side, others on the left, and others on either side. 

The author mentions skates and rays as examples of fish that _______.

A. have spread horizontally 

B. become asymmetrical 

C. resemble sharks 

D. appear to fly

1
30 tháng 5 2018

Kiến thức: Đọc hiểu

Giải thích:

Tác giả đề cập đến cá đuối quạt và cá đuối là những ví dụ về cá _______.

   A. trải rộng theo chiều ngang                        B. trở nên bất đối xứng

   C. giống với cá mập                                       D. có vẻ có thể bay

Thông tin: The skates and rays, relatives of the sharks have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings” They look as though they have been flattened but have remained symmetrical and “the right way up”.

Tạm dịch: Cá đuối quạt và cá đuối, họ hàng của cá mập đã trở nên dẹt theo một cách có thể được gọi là rõ ràng. Cơ thể của chúng đã phát triển ngang để tạo thành những "đôi cánh" lớn. Chúng trông như thể chúng đã được làm phẳng nhưng vẫn cân đối và "phát triển đúng cách".

Chọn A 

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions. Fish that live on the sea bottom benefit by being flat and hugging the contours. There are two very different types of flatfish and they have evolved in very separate ways. The skates and rays, relatives of the sharks, have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings”. They look...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

Fish that live on the sea bottom benefit by being flat and hugging the contours. There are two very different types of flatfish and they have evolved in very separate ways. The skates and rays, relatives of the sharks, have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings”. They look as though they have been flattened but have remained symmetrical and “the right way up”. Conversely, fish such as plaice, sole, and halibut have become flat in a different way. There are bony fish which have a marked tendency to be flattened in a vertical direction; they are much “taller” then they are wide. They use their whole, vertically flattened bodies as swimming surfaces, which undulate through the water as they move. Therefore, when their ancestors migrated to the seabed, they lay on one side than on their bellies. However, this raises the problem that one eye was always looking down into the sand and was effectively useless – In evolution this problem was solved by the lower eye “moving” around the other side. We see this process of moving around enacted in the development of every young bony flatfish. It starts life swimming near the surface, and is symmetrical and vertically flattened, but then the skull starts to grow in a strange asymmetrical twisted fashion, so that one eye, for instance the left, moves over the top of the head upwards, and old Picasso – like vision. Incidentally, some species of 20 flatfish settle on the right side, others on the left, and others on either side.

According to the passage, fish such as plaice _______.

A. have difficulties in swimming

B. live near C. have distorted headsthe surface

C. have distorted heads

D. have poor eyesight

1
1 tháng 5 2018

Đáp án C.

Key words: plaice.

Phân tích:

A. have difficulties in swimming: gặp khó khăn trong bơi lội – Sai vì ngay ở câu đầu tiên ta đã biết đây là một loài được hưởng lợi nhờ việc thân nó trở nên dẹt (benefit by being flat) → nó bơi rất giỏi nhờ được hưởng lợi thế tiến hóa.

B. live near the surface: sống ở gần mặt nước – Sai vì ngay ở câu đầu tiên ta đã biết đây là một loài sống ở đáy biển (live on the sea bottom).

C. have distorted heads: có đầu méo mó – Đúng vì bài có đề cập đến việc hộp sọ của chúng bắt đầu phát triển theo một kiểu thời trang xoắn bất đối xứng. (the skull starts to grow in a strange asymmetrical twisted fashion)

D. have poor eyesight: có mắt kém – Sai vì trong bài chỉ nói nó hay nằm nghiêng, một con mắt lúc nào cũng nhìn xuống cát và bởi vậy cái mắt đó là vô dụng (one eye was always looking down into the sand and was effectively useless) → không phải là do mắt kém.

Vậy đáp án là C. have distorted heads

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questionsFish that live on the sea bottom benefit by being flat and hugging the contours. There are two very different types of flatfish and they have evolved in very separate ways. The skates and rays, relatives of the sharks have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings” They look as...
Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions

Fish that live on the sea bottom benefit by being flat and hugging the contours. There are two very different types of flatfish and they have evolved in very separate ways. The skates and rays, relatives of the sharks have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings” They look as though they have been flattened but have remained symmetrical and “the right way up”. Conversely fish such as plaice, sole, and halibut have become flat in a different way. There are bony fish which have a marked tendency to be flattened in a vertical direction; they are much “taller” than they are wide. They use their whole vertically flattened bodies as swimming surfaces, which undulate through the water as they move. Therefore when * their ancestors migrated to the seabed, they lay on one side than on their bellies. However, this raises the problem that one eye was always looking down into the sand and was effectively useless - In evolution this problem was solved by the lower eye “moving” around the other side. We see this process of moving around enacted in the development of every young bony flatfish. It starts life swimming near the surface, and is symmetrical and vertically flattened, but then the skull starts to grow in a strange asymmetrical twisted fashion, so that one eye for instance the left, moves over the top of the head upwards, an old Picasso - like vision. Incidentally, some species of 20 flatfish settle on the right side, others on the left, and others on either side.
Question:
It can be inferred from the passage that horizontal symmetrical fish _____

A. have one eye each side of the head

B. have one eye underneath the head

C. have two eyes on top of the head

D. have eyes that move around the head

1
19 tháng 1 2017

Đáp án C

Kiến thức: Đọc hiểu

Giải thích: 

Có thể suy luận từ đoạn văn rằng cá dẹt ngang _____

A. Có một mắt mỗi bên đầu                 C. có hai mắt trên đỉnh 

B. có một mắt bên dưới đầu                 D. có mắt chuyển động quanh đầu

Dẫn chứng: It starts life swimming near the surface, and is symmetrical and vertically flattened, but then the skull starts to grow in a strange asymmetrical twisted fashion, so that one eye for instance the left, moves over the top of the head upwards, an old Picasso - like vision. Incidentally, some species of 20 flatfish settle on the right side, others on the left, and others on either side.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. Fish that live on the sea bottom benefit by being flat and hugging the contours. There are two very different types of flatfish and they have evolved in very separate ways. The skates and rays, relatives of the sharks have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings” They look as though...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

Fish that live on the sea bottom benefit by being flat and hugging the contours. There are two very different types of flatfish and they have evolved in very separate ways. The skates and rays, relatives of the sharks have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings” They look as though they have been flattened but have remained symmetrical and “the right way up”. Conversely fish such as plaice, sole, and halibut have become flat in a different way. There are bony fish which have a marked tendency to be flattened in a vertical direction; they are much “taller” than they are wide. They use their whole vertically flattened bodies as swimming surfaces, which undulate through the water as they move. Therefore when * their ancestors migrated to the seabed, they lay on one side than on their bellies. However, this raises the problem that one eye was always looking down into the sand and was effectively useless - In evolution this problem was solved by the lower eye “moving” around the other side. We see this process of moving around enacted in the development of every young bony flatfish. It starts life swimming near the surface, and is symmetrical and vertically flattened, but then the skull starts to grow in a strange asymmetrical twisted fashion, so that one eye for instance the left, moves over the top of the head upwards, an old Picasso - like vision. Incidentally, some species of 20 flatfish settle on the right side, others on the left, and others on either side

It can be inferred from the passage that horizontal symmetrical fish:

A. have one eye each side of the head

A. have one eye each side of the head

C. have two eyes on top of the head

D. have eyes that move around the head

1
27 tháng 2 2017

Đáp án C

Có thể suy luận từ đoạn văn rằng cá cân đối ngang:

A. có một mắt mỗi bên của đầu

B. có một mắt bên dưới đầu

C. có hai mắt trên đỉnh đầu

D. có mắt chuyển động quanh đầu

Có hai loài cá đẹt được đề cập trong bài là cá dẹt đối xứng ngang (horizontal symmetrical fish) và cá dẹt đối xứng đọc (vertically symmetrical fish). Thông tin về mắt lại chỉ được cung cấp về loài thứ hai, do đó ta phải tự suy đoán, Loại đối xứng dọc có mắt ở hai bên, và loài đối xứng ngang như hình ảnh cá đối thì cả hai mắt đều ờ trên đầu

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questionsFish that live on the sea bottom benefit by being flat and hugging the contours. There are two very different types of flatfish and they have evolved in very separate ways. The skates and rays, relatives of the sharks have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings” They look as...
Đọc tiếp

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions

Fish that live on the sea bottom benefit by being flat and hugging the contours. There are two very different types of flatfish and they have evolved in very separate ways. The skates and rays, relatives of the sharks have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings” They look as though they have been flattened but have remained symmetrical and “the right way up”. Conversely fish such as plaice, sole, and halibut have become flat in a different way. There are bony fish which have a marked tendency to be flattened in a vertical direction; they are much “taller” than they are wide. They use their whole vertically flattened bodies as swimming surfaces, which undulate through the water as they move. Therefore when * their ancestors migrated to the seabed, they lay on one side than on their bellies. However, this raises the problem that one eye was always looking down into the sand and was effectively useless - In evolution this problem was solved by the lower eye “moving” around the other side. We see this process of moving around enacted in the development of every young bony flatfish. It starts life swimming near the surface, and is symmetrical and vertically flattened, but then the skull starts to grow in a strange asymmetrical twisted fashion, so that one eye for instance the left, moves over the top of the head upwards, an old Picasso - like vision. Incidentally, some species of 20 flatfish settle on the right side, others on the left, and others on either side.
Question:
It can be inferred from the passage that the early life of a flatfish is_____

A. often confusing

B. pretty normal

C. very difficult

D. full of danger

1
29 tháng 12 2017

Đáp án C

Kiến thức: Đọc hiểu  

Giải thích: 

Có thể suy luận từ đoạn văn rằng giai đoạn đầu đời của cá dẹt thì_____

A. thường gây nhầm lẫn            B. khá bình thường

C. rất khó khăn                          D. đầy nguy hiểm

Dẫn chứng: We see this process of moving around enacted in the development of every young bony flatfish.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. Fish that live on the sea bottom benefit by being flat and hugging the contours. There are two very different types of flatfish and they have evolved in very separate ways. The skates and rays, relatives of the sharks have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings” They look as though...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.

Fish that live on the sea bottom benefit by being flat and hugging the contours. There are two very different types of flatfish and they have evolved in very separate ways. The skates and rays, relatives of the sharks have become flat in what might be called the obvious way. Their bodies have grown out sideways to form great “wings” They look as though they have been flattened but have remained symmetrical and “the right way up”. Conversely fish such as plaice, sole, and halibut have become flat in a different way. There are bony fish which have a marked tendency to be flattened in a vertical direction; they are much “taller” than they are wide. They use their whole vertically flattened bodies as swimming surfaces, which undulate through the water as they move. Therefore when * their ancestors migrated to the seabed, they lay on one side than on their bellies. However, this raises the problem that one eye was always looking down into the sand and was effectively useless - In evolution this problem was solved by the lower eye “moving” around the other side. We see this process of moving around enacted in the development of every young bony flatfish. It starts life swimming near the surface, and is symmetrical and vertically flattened, but then the skull starts to grow in a strange asymmetrical twisted fashion, so that one eye for instance the left, moves over the top of the head upwards, an old Picasso - like vision. Incidentally, some species of 20 flatfish settle on the right side, others on the left, and others on either side

It can be inferred from the passage that the early life of a flatfish is:

A. often confusing

B. pretty normal

C. very difficult

D. full of danger

1
25 tháng 6 2018

Đáp án B

Có thể suy luận từ đoạn văn rằng những năm đầu đời của một con cá thân bẹt là

A. thường gây nhầm lẫn

B. khá bình thường

C. rất khó

D. đầy nguy hiểm

Thông tin ở câu: “However, this raises the problem that one eye was always looking down into the sand and was effectively useless - In evolution this problem was solved by the lower eye “moving” around the other side. We see this process of moving around enacted in the development of every young bony flatfish.” (Tuy nhiên, điều này làm nảy sinh vấn đề mà một mắt nhìn xuống cát và kết quả là khá vô ích - Trong tiến hóa vấn đề này đã được giải quyết bằng việc mắt dưới "di chuyển" xung quanh bên phía còn lại. Chúng ta có thể thấy quá trình di chuyển này đã được phổ biến trong sự phát triển của tất cả các cá thể cá thân bẹt xương trẻ.) => Quá trình tiến hóa đã hoàn thành do vậy khi cá con sinh ra và lớn lên vẫn theo quá trình tương tự như bố mẹ chúng. Do vậy, giai đoạn đầu đời của cá dẹt được xem là bình thường