The process of cell division that divides the cytoplasm of the zygote among blastomeres is called
A) cleavage.
B) implantation.
C) placentation.
D) embryogenesis.
E) blastulation.
Answer: A
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Bone cells form concentric circles around longitudinal tubes called
A. lacunae. B. central canals. C. osteons. D. canaliculi.
Loss of cell cycle control can cause cancer.
Answer the following statement true (T) or false (F)
This figure shows a posterior view of the right thigh. What muscle does number 3 indicate?
A. Semitendinosus B. Semimembranosus C. Biceps femoris D. Adductor magnus E. Gluteus maximus
The type of neuronal circuit in which several neurons process the same information at one time is a _____________ circuit
A. converging B. diverging C. reverberating D. parallel-after-discharge E. None of the choices is correct.