Solid worms that lack a body cavity are known as
A. coelomates.
B. pseudocoelomates.
C. triploblastic.
D. acoelomates.
E. diploblastic.
Answer: D
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Reductive dechlorination involves chlorinated organic compounds serving as electron donors and releasing the chloride in inorganic forms
Indicate whether the statement is true or false.
Plants that carry out the Calvin cycle during the day when the stomata are closed and fix carbon dioxide into organic acids at night when the stomata are open are called:
a) green algae. b) C3 plants. c) C6 plants. d) CAM plants. e) chemoautotrophs.
The divisions of the nervous system that have antagonistic, or opposing, actions are _____
A) motor and sensory systems B) sympathetic and parasympathetic systems C) presynaptic and postsynaptic membranes D) central nervous system and peripheral nervous system
The organelle involved in intracellular digestion of food particles is the
A. smooth endoplasmic reticulum. B. transitional vesicle. C. mitochondria. D. lysosome. E. Golgi apparatus.