Internal fertilization only occurs by copulation

Indicate whether the statement is true or false


FALSE

Biology & Microbiology

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Sponges are heavily preyed upon by marine fishes

Indicate whether the statement is true or false

Biology & Microbiology

Deposits of shells from ancient _____ are mined as chalk and limestone

a. dinoflagellates c. radiolarians b. diatoms d. foraminiferans

Biology & Microbiology

Destruction of the corpus luteum results from a

__________ levels if pregnancy does NOT occur. a. decline in chorionic gonadotropin b. decline in LH c. surge in progesterone d. spike in LH e. spike in estrogen

Biology & Microbiology

The orderly replacement of one community by another is known as:

a. character displacement. b. succession. c. coevolution. d. the edge effect. e. competitive exclusion.

Biology & Microbiology