Why is the idea of common descent only a conclusion? It's based on directly observable data.
It's not observable, but is determined based on a large amount of
related evidence.
It's a recent idea without much evidence supporting it.

Which process is involved in growing crops? irrigation transportation recreation condensation

3points hurry! what is the relationship between biotechnology, sharkskin, and disease resistance? bioengineers have developed an artificial sharkskin that does not allow resistant bacteria to grow on it. disease-causing microbes have been genetically modified to keep them from infecting the skins of sharks. scientists have created a device that can be attached to the skins of sharks that dramatically increases their abilities to resist disease. sharkskin produces many chemicals that can be collected and used to create antibiotics.

Which part of the cell is affected by the movement of molecules through diffusion, osmosis and active transport?