Which of the following events occurs over the
longest period of time in humans?
a. blastula formation
b. cleavage
c. fertilization
d. gastrulation
e. growth and tissue specialization
Answer: e
You might also like to view...
Which of the following regions of the human brain is critically important for controlling heart rate and breathing?
A. medulla oblongata B. cerebellum C. thalamus D. hippocampus E. cerebral cortex
If a dividing cell had no functional Cdk2 protein, the cell would not be able to ____
a. phosphorylate cyclins b. transcribe the Cdk2 gene c. enter G1 d. translate cyclin mRNA e. degrade cyclins
The adaptation that allows insects to blend into the background might be represented by:
A. the grass in a yard. B. the color of a building. C. the instar of grasshoppers. D. the leaves on a tree. E. tinted windows in a car.
Refer to the accompanying figure. In which part of the muscle fiber are calcium ions stored?
a. 2 b. 3 c. 4 d. 5 e. 6