From a single fertilized ovum undergoing a series of rapid cell divisions, a human infant developes. The embryonic cells become specialized for a variety of functions. Which of these statements best describes how different cell types develop?

Identify the examples in which sam interacts only with natural resources

To be or not to be that is da question

What do isotopes of uranium have the same number of? what do they have a different number of? a) same number of protons; different number of electrons b) same number of protons; different number of neutrons c) same number of electrons; different number of protons d) same number of neutrons; different number of protons