A parent isotope has a half life of 1 million years. If a rock contained 20 mg of the parent isotope when it formed, how much parent isotope would be left after 2 million years?

What are the animals species called that exhibit long gestation periods, give birth to relatively large offspring and maintain population numbers close to the habitat carrying capacity?

What is the purpose of the cell cycle? a DNA replication development of positive mutations prevention of cancer growth, repair, and reproduction of cells С

What is ATP? A: the energy of moving electrons B: an energy-rich substance that cells need to survive C: an acidic substance that makes muscles cramp D: an organism that uses fermentation to produce energy

Can be known about Mendel's five-part hypothesis? It is an answer to a scientific question and is based mostly on research. It identifies three alleles for each gene. It is an answer to a scientific question and is based mostly on prior knowledge.

Why would a tumor located in the abdomen of an organism be more likely to cause problems than a tumor located in the arm/appendage of an organism? A. Both tumors would be fatal. B. The abdomen contains more vital organs. C.

Which factor causes the greatest increase in an area's flash flood risk?

A body weight that is 10 to 15 percent below the desired weight is

How should we properly understand human nature?

Which molecule would be the most affected by limited nitrogen

Where does the energy come from to make ATP at the cloroplast