The nuclei of the following cells in a woman's body are identified with
compared:
1 a nerve cell;
2 a cell of the uterine lining.
Which cell nucleus contains, or which cell nuclei contain 23 pairs of chromosomes?
A Cell 1 only.
B Cell 2 only.
C Cell 1 and cell 2.
D Neither cell.

the answer is b: 1.4 km/hr

i think that d. wind is the answer.   i missed the question when i answered a. currents.

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands