Which statement is true of Y chromosomes?

A. Women have two of them.

B. Only women have them.

C. All babies have them.

D. Only men have them.

If an organism''s diploid number is 12, what would be its haploid number?

Would rather do a procedure than hear about it

What organs control water and mineral ion levels

Observations of two different cell types indicate a couple of differences in their mitochondria. Cell type 1 has 2-3 times the mitochondria of Cell Type 2.

Which of the following climates is most suited for physical weathering? A. Cool B. Warm C. Hot D. Dry

Which organelle has a double membrane

The period of life in which the ability to reproduce begins-in females, it is the period when the female reproductive organs are fully developed-is known as

Read the following statements that describe what happens as an impulse travels. What is the correct order in which the steps occur? 1) The impulse continues to travel down the axon away from the cell body.

What three structural groups shown do all amino acids have in common?

What is meant by haploid and deploid cells