Nutrients enter a cell up the concentration gradient by the process of active transport.
A cell which contains cytoplasm, cell membrane and a nucleus
The planet would be Neptune and Earth's average time is 365.2 days aka a full year (1 year).
The answer is A. When a potent drug is discovered, it has to undergo animal and human trials to test it ADMET (Absorption, Distribution Metabolism, Excretion, and Toxicity) properties. Using tissue cultures to test drugs, such as cancer drugs, prevents the incidence of subjecting humans to the unknown adverse effects of the drugs before the drugs are determined to be safe for use.
Answer:
Artificial selection.
Explanation:
The development by scientists of a new color in a rose is the result of artificial selection.