Differentiation switches certain genes on and off to create specialized cells. true false

Why do all "normal" cells in the human body have the same number of chromosomes?

What life process involves obtaining material and changing it into useful forms

To meet cellular needs forfood, waster, energy and waste removal, multicellular organisms have developed various specializations such as organs

Why is it rare for the soft parts of an organism to become a fossil? A. The soft parts take a long time to decay. B. The soft parts can be eaten by other animals. C. The soft parts cannot be buried in sediment. D.

What is the difference between the chromosomes in a secondary spermatocyte and those in a spermatid. A) The chromosomes in secondary spermatocytes consist of two chromatids; the ones in the spermatid consist of only one chromatid.

Carbon dioxide + water =

How can mass extinction events be distinguished from background extinctions?

The stability of atomic nuclei seems to be related to the ratio of: a] protons to electrons b] neutrons to protons c] isotopes to neutrons d] neutrinos to gamma rays

After teaching a group of students about the release of aldosterone, the instructor determines that the teaching was successful when they identify which as stimulating the hormone's release?

How do lungs develop?