many mature clown fish of both sexes occupied each sea anemone
juvenile clown fish had a high mortality rate
both male clown fish and female clown fish were highly territorial
21. The author mentions all of the following as characteristic of the rigidly defined hierarchy of the clown-fish community EXCEPT:
At any time only one female clown fish can be reproductively active
The mature clown fish are monogamous
The growth of clown fish is synchronized
The maximum number of clown fish is fixed
There are equal numbers of male juveniles and female juveniles
22. Which of the following statements about newly hatched clown fish can be inferred from the passage?
They develop rapidly.
They remain close to the sea anemone occupied by their parents.
They are more sensitive to chemical signals than are adult clown fish.
They are not protected by their parents.
They are less vulnerable to predation than are adult fish.
23. Which of the following, if true, would be LEAST consistent with the authors explanation of the advantage of hermaphroditism for clown fish?
The number of individuals in a clown-fish community fluctuates significantly.
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