Câu hỏi:
27/04/2020 511Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the answer to each of the following questions.
All mammals feed their young. Beluga whale mothers, for example, nurse their calves for some twenty months, until they are about to give birth again and their young are able to find their own food. The behavior of feeding of the young is built into the reproductive system. It is a nonselective part of parental care and the defining feature of a mammal, the most important thing that mammals-- whether marsupials, platypuses, spiny anteaters, or placental mammals -- have in common.
But not all animal parents, even those that tend their offspring to the point of hatching or birth, feed their young. Most egg-guarding fish do not, for the simple reason that their young are so much smaller than the parents and eat food that is also much smaller than the food eaten by adults. In reptiles, the crocodile mother protects her young after they have hatched and takes them down to the water, where they will find food, but she does not actually feed them. Few insects feed their young after hatching, but some make other arrangement, provisioning their cells and nests with caterpillars and spiders that they have paralyzed with their venom and stored in a state of suspended animation so that their larvae might have a supply of fresh food when they hatch.
For animals other than mammals, then, feeding is not intrinsic to parental care. Animals add it to their reproductive strategies to give them an edge in their lifelong quest for descendants. The most vulnerable moment in any animal's life is when it first finds itself completely on its own, when it must forage and fend for itself. Feeding postpones that moment until a young animal has grown to such a size that it is better able to cope. Young that are fed by their parents become nutritionally independent at a much greater fraction of their full adult size. And in the meantime those young are shielded against the vagaries of fluctuating of difficult-to-find supplies. Once a species does take the step of feeding its young, the young become totally dependent on the extra effort. If both parents are removed, the young generally do not survive.
The author lists various animals in line 5 to ________
Đáp án chính xác
Sách mới 2k7: Tổng ôn Toán, Lí, Hóa, Văn, Sử, Địa…. kỳ thi tốt nghiệp THPT Quốc gia 2025, đánh giá năng lực (chỉ từ 110k).
Quảng cáo
Trả lời:
Giải bởi Vietjack
Đáp án C
Tác giả liệt kê các loài động vật khác nhau trong dòng 5 để ________
A. đối chiếu thói quen ăn uống của các loại động vật có vú khác nhau
B. mô tả quá trình mà các động vật có vú đã được xác định
C. nhấn mạnh rằng mọi loại động vật có vú đều nuôi dưỡng con của chúng
D. giải thích lý do tại sao một đặc điểm đặc biệt của động vật có vú là không chọn lọc
Nhà sách VIETJACK:
CÂU HỎI HOT CÙNG CHỦ ĐỀ
Câu 1:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
He had no ________ of selling the clock – it had belonged to his grandfather
Xem đáp án »
27/04/2020
17,867
Câu 2:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
_____ had the restaurant opened ________ people were flocking to eat there
Xem đáp án »
27/04/2020
15,010
Câu 3:
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions
We can protect the world in which we live. We, for example, can grow more trees and recycle rubbish
Xem đáp án »
27/04/2020
12,363
Câu 4:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
Jack insisted that he didn’t need any help, ________ I helped him anyway
Xem đáp án »
27/04/2020
11,905
Câu 5:
Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.
We try to help our mother _______ household chores
Xem đáp án »
27/04/2020
11,403
Câu 6:
Mark the letter A, B, C, or D on your answer sheet to indicate the underlined part that needs correction in each of the following questions
Americans have begin leaning toward the idea that marriage is more of an option, rather than a milestone on the path to adulthood.
Xem đáp án »
27/04/2020
11,062
Câu 7:
Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions
“If you touch my bike again, I’ll tell mother”, said my elder brother.
Xem đáp án »
27/04/2020
7,752
về câu hỏi!