Answer:
Cells have different receptors that are specific for different molecules. Receptors can also respond directly to light or pressure, which makes cells sensitive to events in the atmosphere.
Explanation:
Answer:
A parent atom refers to an atom that undergoes radioactive decay in a nuclear reaction
Explanation:
Answer:
D
Explanation:
Looks correct if you go with D
Answer:
Step 1 of the formation of the solar system. the solar nebula collapses.
Step 2 of the formation of the solar system. rotating protostellar disk.
Step 3 of the formation of the solar system. center of nebula fusion begins, star is born.
Step 4 of the formation of the solar system
Explanation:
