Echolocation and Human Adaptation

Gordon remembers her son after the operation. What does this statement refer to in the context of Ben's story?

• Gordon regains her memory of Ben after surgery.

• Gordon forgets her son after the operation.

• Gordon meets her son for the first time after the operation.

• Gordon's son undergoes an operation.

What does this quote illustrate about Ben's adaptation to blindness?

• Ben is struggling to adapt to blindness.

• Ben has fully accepted his blindness.

• Ben is learning new ways to cope with blindness.

• Ben is ignoring his blindness.

How did Ben adapt to his blindness in school?

• By using Braille books

• By leaving school

• By getting help from his friends only

• By not studying at all

Kish means that he can form detailed and complex mental representations of the world using senses other than sight, even though they do not have a visual component. What does Kish mean by 'mental images that are very rich, very complex'?

• He can form detailed and complex mental representations using senses other than sight.

• He cannot form any mental images.

• He only uses visual senses to form mental images.

• He has no mental representations at all.

The ultimate capabilities of human beings like Ben and Kish, compared to bats and dolphins, are:

• Limited compared to bats and dolphins

• Equal to bats and dolphins

• Greater than bats and dolphins

• Unknown

According to Scheifele, Ben's clicking rates are:

• higher than those of dolphins and bats

• lower than those of dolphins and bats

• the same as those of dolphins and bats

• not compared to those of dolphins and bats

According to the passage, the objects people can picture with echolocation must be much larger than those bats and dolphins can find because:

• humans have less sensitive echolocation abilities than bats and dolphins.

• humans have better eyesight than bats and dolphins.

• bats and dolphins use light instead of sound.

• humans can only echolocate underwater.

Which two statements best express the central ideas of the article? (R.2.2)

• Very few people use echolocation in their daily lives.

• Echolocation is a technique that can be utilized by humans.

• Echolocation has been studied by scientists for many years.

• Some animals are known for using echolocation to find food.

• Echolocation can improve the quality of life in certain individuals.

How does the first paragraph contribute to the understanding of the text?

• by showing the widespread use of echolocation by animals

• by giving examples to explain how echolocation works

• by presenting the characteristics of animals that use echolocation

• by describing how each species uses echolocation differently

Which idea about the visual cortex and blind people does paragraph 3 support?

• the visual cortex helps activate the optic nerve where images are formed

• the visual cortex helps increase the amount of light reaching the brain

• the visual cortex helps create images in the brain based on sounds

• the visual cortex helps make echoes of sounds from clicks