Large animals that inhabit the desert have evolved a number of adaptations đáp án

     

*

*

*

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

Large animals that inhabit the desert have evolved a number of adaptations for reducing the effects of extreme heat. One adaptation is khổng lồ be light in color, and to reflect rather than absorb the Sun’s rays. Desert mammals also depart from the normal mammalian practice of maintaining a constant toàn thân temperature. Instead of trying lớn keep down the body temperature deep inside the body, which would involve the expenditure of water and energy, desert mammals allow their temperatures to rise khổng lồ what would normally be fever height, & temperatures as high as 46 degrees Celsius have been measured in Grant’s gazelles. The overheated body then cools down during the cold desert night, and indeed the temperature may fall unusually low by dawn, as low as 34 degrees Celsius in the camel. This is an advantage since the heat of the first few hours of daylight is absorbed in warming up the body, and an excessive buildup of heat does not begin until well into the day.

Bạn đang xem: Large animals that inhabit the desert have evolved a number of adaptations đáp án


Another strategy of large desert animals is khổng lồ tolerate the loss of toàn thân water to lớn a point that would be fatal for non-adapted animals. The camel can thảm bại up lớn 30 percent of its body toàn thân weight as water without harm to itself, whereas human beings die after losing only 12 khổng lồ 13 percent of their toàn thân weight. An equally important adaptation is the ability lớn replenish this water loss at one drink. Desert animals can drink prodigious volumes in a short time, và camels have been known to imbibe over 100 liters in a few minutes. A very dehydrated person, on the other hand, cannot drink enough water lớn rehydrate at one session, because the human stomach is not sufficiently big và because a too rapid dilution of the body toàn thân fluids causes death from water intoxication. The tolerance of water loss is of obvious advantage in the desert, as animals bởi not have lớn remain near a water hole but can obtain food from grazing sparse and far-flung pastures. Desert-adapted mammals have the further ability khổng lồ feed normally when extremely dehydrated, it is a common experience in people that appetite is lost even under conditions of moderate thirst.

*

A. Weather variations in the desert

B. Adaptations of desert animals.

C. Diseased of desert animals

D.

Xem thêm: Unit 10 Lớp 10 Writing Unit 10 : Conservation, Writing Unit 10 : Conservation

Human use of desert animals.


Đáp án B

Đáp án là B
Câu hỏi : chủ đề của đoạn văn là gì ?
Câu câu trả lời : Sự ưng ý nghi của động vật hoang dã vùng sa mạc
Trong bài đề cập mang đến 2 bí quyết cơ bạn dạng để thích hợp nghi của động vật hoang dã vùng sa mạc dó là : gửi màu ánh sáng + tiêu hao tích điện và nước

A. It helps them hide from predators

B. It does not absorb sunlight as much as dark colors

C. It helps them see their young at night.

D.

Xem thêm: Cách Tắt Wifi Trên Modem Fpt, Hướng Dẫn Cách Bật Tắt Wifi Modem Mạng Viettel

It keeps them cool at night.


Đáp án B

Đáp án là B
Câu hỏi : Theo đoạn văn, nguyên nhân màu sáng lại hữu ích đối với động vật vùng sa mạc ?
câu lời giải : Nó không hấp thụ ánh nắng mặt trời như là màu tối
Thông tin nằm tại phần "One adaptation is to lớn be light in color, & to reflect rather than absorb the Sun’s rays."

kimsa88
cf68