When did prokaryotes arise

How do mutations affect an organism? A. they may cause the development of a disease-causing allele B. they may cause the development of a more beneficial allele C. they, in some cases, may have no noticeable affect D. all of the above

What is the name of the process where a material that is weak enough to flow will rises when it is hot and sinks when it is cool causing a circulation cell?

What tool is used to determine skin fold measurements?

Which best describes meiosis? It produces cells that are identical to the original cell. It is responsible for the replacement of damaged skin cells. It is responsible for growth of the organism. It produces male and female sex cells.

When did the phanerozoic Eon begin

What human characteristics does mexico share with nearby regions or countries?

What is the region of dna that controls the hereditary character

during muscle contraction calcium ions combine with tropomyosin, and this exposes active sites for cross bridge formation true or false

Why do you think earthquakes are located in these specific areas?

Electromagnetic energy does not need, Frequency Something to travel through wavelength amplitude