Which aquatic ecosystem is known as the
marine nursery?
a. coral reef
b. hydrothermal vents
c. coral reefs
d. estuary
e. seamounts
D
Biology & Microbiology
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In the absence of predation, is there any limit on prey population size?
a. yes b. no
Biology & Microbiology
Movable bones are features of the sense organs
associated with a. sight. b. hearing. c. taste. d. smell. e. touch.
Biology & Microbiology
Movement of body parts directly requires the
a. endocrine system and nervous system. b. muscular system and skeletal system. c. skeletal system and digestive system. d. muscular system and cardiovascular system. e. nervous system and endocrine system.
Biology & Microbiology
Which of the following is a trace mineral?
A) iodine B) sodium C) phosphorus D) sulfur
Biology & Microbiology