8. What does the passage mainly discuss?
(A) The reason for the sea cucumber’s name
(B) What makes the sea cucumber unusual
(C) How to identify the sea cucumber
(D) Places where the sea cucumber can be found
9. In line 3, the word "bizarre" is closest meaning to
(A) odd
(B) marine
(C) simple
(D) rare
10.According to the Passage, why is the shape of sea cucumbers important?
(A) It helps them to digest their food
(B) It helps them to protect themselves from danger.
(C) It makes it easier for them to move through the mud.
(D) It makes them attractive to fish.
11.The words "this faculty" in line20 refer to the sea cucumber’s ability to
(A) squeeze into crevices
(B) devour all available food in a short time
(C) suck up mud or sand
(D) live at a low metabolic rate
12.The fourth paragraph of the passage Primarily discusses
(A) the reproduction of sea cucumbers
(B) the food sources of sea cucumbers
(C) the eating habits of sea cucumbers
(D) threats to sea cucumbers’ existence
13.The phrase "casts off" in line 24 is closest in meaning to
(A) grows again
(B) grabs
(C) gets rid of
(D) uses as a weapon
14.Of all the characteristics of the sea cucumber, which of the following seems to fascinate the author most?
(A) What it does when threatened.
(B) Where it lives
(C) How it hides from predators
(D) What it eats.
15.Compared with other sea creatures the sea cucumber is very
(A) dangerous
(B) intelligent
(C) strange
(D) fat
16.What can be inferred about the defense mechanisms of the sea cucumber?
(A) They are very sensitive to surrounding stimuli.
(B) They are almost useless.
(C) They require group cooperation.
(D) They are similar to those of most sea creatures.
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