The only part of the nervous system under
voluntary control is the ___ nervous system.
a. somatic
b. autonomic
c. central
d. sympathetic
e. parasympathetic
A
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Which of the following organisms is currently considered one of the primary photosynthetic organisms in the oceans?
A. green algae B. cyanobacteria C. diatoms D. red algae E. None of the answers options is correct.
The directional movements of the ocean currents are mainly due to the ________
a. force of the wind b. amount of rainfall the region receives c. distance to the sun d. depth of the water e. temperature of the water
Which of the following statements about hydrostatic skeletons is true?
a. Compression of fluids causes movement of an animal body. b. Hydrostatic skeletons permit very precise and delicate movements. c. Fluid is moved throughout an organism due to alternating contractions of antagonistic muscles. d. Contraction of the inner circular muscles causes the body of an organism to shorten. e. Contraction of the outer longitudinal muscles causes the body of an organism to lengthen.
During plant cell cytokinesis, what is the name of the structure that forms between the daughter cell nuclei and eventually will become the new cell wall?
A) Constriction ring B) Kinetochore C) Cell plate D) Vesicle wall