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 ...
Tôi yêu Việt Nam | Chat Online | |
03/09 22:39:33 (Tiếng Anh - Lớp 12) |
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 _______.
Lựa chọn một trả lời để xem Đáp án chính xác Báo sai đáp án hoặc câu hỏi |
A. have spread horizontally 0 % | 0 phiếu |
B. become asymmetrical 0 % | 0 phiếu |
C. resemble sharks 0 % | 0 phiếu |
D. appear to fly 0 % | 0 phiếu |
Tổng cộng: | 0 trả lời |
Trắc nghiệm liên quan
- 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 ... (Tiếng Anh - Lớp 12)
- 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 ... (Tiếng Anh - Lớp 12)
- Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word for each of the numbered blanks from 30 to 34. When summer comes and the sun appears, it’s good to have a hat. Many people have ... (Tiếng Anh - Lớp 12)
- Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word for each of the numbered blanks from 30 to 34. When summer comes and the sun appears, it’s good to have a hat. Many people have ... (Tiếng Anh - Lớp 12)
- Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word for each of the numbered blanks from 30 to 34. When summer comes and the sun appears, it’s good to have a hat. Many people have ... (Tiếng Anh - Lớp 12)
- Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word for each of the numbered blanks from 30 to 34. When summer comes and the sun appears, it’s good to have a hat. Many people have ... (Tiếng Anh - Lớp 12)
- Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct word for each of the numbered blanks from 30 to 34. When summer comes and the sun appears, it’s good to have a hat. Many people have ... (Tiếng Anh - Lớp 12)
- Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best combines the pair of sentences given in each of the following questions. He spent all his money. He even borrowed some from me. (Tiếng Anh - Lớp 12)
- Mark the letter A, B, C or D on your answer sheet to indicate the sentence that best combines the pair of sentences given in each of the following questions. I accepted the new job after all. It is making me feel exhausted. (Tiếng Anh - Lớp 12)
- Mark the letter A, B, C or D on your answer sheet to show the underlined part that needs correction. In China, Japan and other Oriental countries, where tea is national drink, people almost add never sugar to their tea. (Tiếng Anh - Lớp 12)
Trắc nghiệm mới nhất
- Điền từ còn thiếu vào câu thành ngữ sau: Mò kim đáy...? (Tiếng Việt - Lớp 5)
- Calcium hydroxide là chất rắn màu trắng, ít tan trong nước. Phát biểu nào sau đây sai? (Khoa học tự nhiên - Lớp 9)
- Ứng dụng của silicon là (Khoa học tự nhiên - Lớp 9)
- Từ cát thạch anh (cát trắng) sản xuất ra (Khoa học tự nhiên - Lớp 9)
- Công đoạn chính để sản xuất đồ gốm theo thứ tự lần lượt là (Khoa học tự nhiên - Lớp 9)
- Phát biểu nào sau đây không đúng về silicon? (Khoa học tự nhiên - Lớp 9)
- Vì sao vôi tôi được sử dụng để xử lí SO2 trong khí thải? (Khoa học tự nhiên - Lớp 9)
- Nhỏ một vài giọt hydrochloric acid lên một viên đá vôi thu được hiện tượng nào sau đây? (Khoa học tự nhiên - Lớp 9)
- Để sản xuất thủy tinh loại thông thường, cần các nguyên liệu nào sau? (Khoa học tự nhiên - Lớp 9)
- Vôi tôi là tên gọi của hợp chất nào sau đây? (Khoa học tự nhiên - Lớp 9)