bats are better at using sound waves than whales D . a gorill a sticks its tongue out when it's fr ightened【小题4 】 What is the main ide a of the passa A . Sounds are the most common type of com munication in animals. B . Human beings can use language to commu nicate, but...
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Whales don't produce sounds the way we do. Our vocal-cord system wouldn't work too well underwater. Instead, whales produce sound by moving inhaled air around the nasal cavity in front of their blowholes. In toothed whales, the sound-making system involves a complex arrangement of fatty tis...
Whales don't produce sounds the way we do. Our vocal-cord system wouldn't work too well underwater. Instead, whales produce sound by moving inhaled air around the nasal cavity in front of their blowholes. In toothed whales, the sound-making system involves a complex arrangement of fatty tis...
C. Researchers should use many devices. D. Blue whales eat a lot. 相关知识点: 试题来源: 解析 答案见上56.B.细节理解题。由 In just one day, blue whales living in the North Pacific Ocea can eat about 14.5 metric tons of krill.可知,仅一天,北太平洋蓝鲸的食量为14.5 公吨磷虾。 57.B...
Sonar is a technology that uses sound waves to detect objects. It is particularly useful in the deep ocean owing to the fact that it is very dark and thus vision-based detection methods are of no use there.Answer and Explanation:
Kraus: So much. Underwater animals, whales, dolphins, they all communicate with sound. Shipping, oil well digging, all of that really gets in the way of animal communication. And there were some wonderful experiments that were done during the first couple weeks of the pandemic when, for exam...
Like other toothed whales, dolphins also rely upon sounds for communication. One reason might be that sound waves travel almost five times faster through water than through the air. Dolphins produce two kinds of sounds:whistlingandclicking. Dolphins primarily generate clicking sound forecholocationor ...
Bats, who hunt at night, use echolocation to find their prey, too. First, the whale has to produce a sound. Toothed whales don't have anything exactly like our vocal cords, although they have similar structures. It's thought that they produce their sounds in their nasal passages [source:...
This sonar used by some ships sends out sound waves to locate underwater objects. The Cuvier’s beaked whale is a so-called toothed whale. Toothed whales dive deep into the ocean in search of food. As the whales hunt they produce sounds that reach objects and then return to the whales...