Answer:
D fossil record
Explanation:
Depending on what layer of earth the fossil was recorded then they could determine a rough date. Then they would use carbon dating to be more exact.
Answer:
Because mitosis is a cell multiplication
Explanation:
Mitosis is a cellular process that generates from a single cell, two identical cells in size and ploidia. Mitosis is a process of cell mutiplication that allows to transform the unicellular zygote into a multicellular organism; also allows the replacement of damaged or old cells for new cells in the different tissues.
Answer:
Explanation:
Pumps, also called transporters, are transmembrane proteins that actively move ions and/or solutes against a concentration or electrochemical gradient across biological membranes. Pumps generate a membrane potential by creating an electrochemical gradient across the membrane.
The supplement seems to be effective, but more trials are necessary.