Since water is the basis of life, composing the greater part of the tissues of all living things, the crucial problem of desert animals is to survive in a world where sources of flowing water are rare. And since man’s inexorable necessity is to absorb large quantities of water at frequent intervals, he can scarcely comprehend that many creatures of the desert pass their entire lives without a single drop.

   Uncompromising as it is, the desert has not eliminated life but only those forms unable to withstand its desiccating effects. No moist- skinned, water-loving animals can exist there. Few large animals are found. The giants of the North American desert are the deer, the coyote, and the bobcat. Since desert country is open, it holds more swift-footed running and leaping creatures than the tangled forest. Its population is largely nocturnal, silent, filled with reticence, and ruled by stealth. Yet they are not emaciated.

   Having adapted to their austere environment, they are as healthy as animals anywhere else in the word. The secret of their adjustment lies in the combination of behavior and physiology. None could survive if, like mad dogs and Englishmen, they went out in the midday sun; many would die in a matter of minutes. So most of them pass the burning hours asleep in cool, humid burrows underneath the ground, emerging to hunt only by night. The surface of the sun-baked desert averages around 150 degrees, but 18 inches down the temperature is only 60 degrees.

The phrase “those forms” in the passage refers to all of the following EXCEPT ..........

Câu hỏi liên quan

• What did the professor learn from the study?

• It is ............ to write the rules that tell exactly when we should apologize.

• The author mentions the “ shoesbox under the bed” in order to ................

ZUNIA12

• According to the passage, which of the following is NOT true?

• According to paragraph 1, which of the following is NOT true?

• What does the passage mainly discuss?

• The word -that in the third paragraph refers to ............

• What is Martin Luthur King well- known for?

• The word "rough"in the passage  is closest in meaning to ...........

• Why does the author mention “artistic, political, or pedagogic communication” in the passage?

• What is the purpose of the paragraph 1?

• What is the main point the writer is trying to make in the last paragraph?

• Which of the following is NOT mentioned about John Harvard?

• The word "it" in paragraph 7 refers to ______.

• The passage would most likely be followed by details about _______.

• As mentioned in the text, who are the most active when their team has the ball?

• According to the writer, why is the choice of your second job important?

• Why does the couple exchange garlands?

• The word “it” refers to __________.

• What can be inferred about babies from this passage?