A student draws this model to show how humans evolved from ancestral primates. What are the pros and cons of this model in regard to the theory of evolution? Explain how you’d make it more accurate. To create a scientifically credible answer, use a credible website to research human evolution.

What links the two strands in a dna helix together in the middle? a. phosphate groups b. sugar rings bonded together c. proteins d. bases with hydrogen bonds

Describe two recent or ongoing space missions.

The small molecule cyclic amp (camp) takes about 0.2 second to diffuse 10 μm, on average, in a cell. suppose that camp is produced near the plasma membrane on one end of the cell; how long will it take for this camp to diffuse through the cytosol and reach the opposite end of a very large cell, on average? assume that the cell is 200 μm in diameter.