Answer:
Positive selection involves targeting the desired cell population with an antibody specific to a cell surface marker (CD4, CD8, etc.). ... Negative selection is when several cell types are removed, leaving the cell type of interest untouched.
Answer:
Practice physical distancing by avoiding unnecessary travel and staying away from large groups of people.
Explanation:
What preventative measures can I take against the coronavirus disease?
Adaptation? Their size plays a role in this, and size is sometimes an adaptation.
Answer:
Stanley Miller created an experiment where he sent an electrical charge through a flask of a chemical solution of methane, ammonia, hydrogen and water . This created organic compounds including amino acids .
The experiment supported the hypothesis that several organic compounds can be created in earth's early atmosphere , several organic amino acids can be created from inorganic raw material .
Explanation:
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Kin selection, I think this is right, but I am not sure
