Q2. Which of the following can be inferred about the experiment described in the first paragraph?
(A) Researchers had difficulty verifying the existence of electroreceptors in the anteater because electroreceptors respond to such a narrow range of electrical field strengths.
(B) Researchers found that the level of nervous activity in the anteater’s brain increased dramatically as the strength of the electrical stimulus was increased.
(C) Researchers found that some areas of the anteater’s snout were not sensitive to a weak electrical stimulus.
(D) Researchers found that the anteater’s tactile receptors were more easily excited by a strong electrical stimulus than were the electroreceptors.
(E) Researchers tested small areas of the anteaters snout in order to ensure that only electroreceptors were responding to the stimulus
Answer - C

Q3 The passage suggests that the researchers mentioned in the second paragraph who observed anteaters break into a nest of ants would most likely agree with:-
(A) The event that observed provides conclusive evidence that anteaters use their electroreceptors to locate unseen preys
(B) The event they observed was atypical and may not reflect the usual hunting practices of the anteaters
(C) It is likely that the anteaters located the ants' nesting chambers without the assistance of electroreceptors.
(D) Anteaters possess a very simple sensory system for use in locating prey.
(E) The speed with which the anteaters located their prey is greater than what might be expected on the basis of chance alone.
Answer - E

Q4 Which of the following if true would most strengthen the hypothesis mentioned in the second para?
(A) Researchers are unable to train anteaters to break into an underground chamber that is emitting a strong electrical signal
(B) Researchers are able to detect a weak electrical signal emanating from the nesting chamber of an ant colony
(C) Anteaters are observed taking increasingly longer amounts of time to locate the nesting chamber of ants
(D) Anteaters are observed using various angles to break into the nests of ants.
(E) Anteaters are observed using the same angle used with nests of ants to break into the nests of other types of prey.
Answer - B

spot on... but please explain

Q3: Last line of the passage clearly suggests that the researchers are agreeing that anteaters located the chambers quickly because of electroreceptors. Hence E

This ability quickly to locate unseen prey suggests, according to the researchers, that the anteaters were using their electroreceptors to locate the nesting chambers.

Q4. The hypotheseis that needs to be strengthened is "anteaters use electroreceptors to detect electrical signals given off by prey"

researchers experimented anteaters in a weak electrical field and concluded that anteaters can detect weak electrical signals and hypothesized their theory that anteaters use electroreceptors to locate their prey. But according to the passage, researchers are still not sure of any electrical signals emanating from termite mounds. This points out a gap in their hyposthesis. option B fillls the gap.

let me know if any further questions.
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Ya... What you said about 3 is absolutely correct. Then how come the answer is E? It should be A. Your reasoning suggests A more than E. Am I missing something? 4 is fine.





C