It's (B) A catastrophic event where 90 percent of the ocean's species were lost and 70 percent of the land life was thought to go extinct.
<span>After strenuous exercise, a muscle cell would contain decreased amounts of ATP</span>
Answer:
<em>ATP</em> or <em>Adenosine triphosphate</em> is the chief compounds which are used by the living things to store energy.
Explanation:
<em>ATP</em> is the compound that captures the chemical energy released through the degradation of food. It <em>stores</em> the captured energy and <em>releases</em> it at the time of need experienced by the organism.
It is made up of adenine, ribose sugar, and a phosphate group. It is produced in a cell organelle called <em>mitochondria</em> through a process called <em>respiration</em>.
Answer:
The most common elements, like carbon and nitrogen, are created in the cores of most stars, fused from lighter elements like hydrogen and helium. The heaviest elements, like iron, however, are only formed in the massive stars which end their lives in supernova explosions.
Explanation:
