Answer:
1.) stromatolites
2.) photosynthesis
3.) Ordovician
4.) Cambrian
5.) oxygen
6.) As Earth cooled, carbon dioxide dissolved in the early ocean. Cyanobacteria consumed carbon dioxide and converted it to oxygen. Methane was removed from the atmosphere as oxygen was produced, eventually leading to the Cambrian Explosion.
7.) Metabolic processes that use oxygen produce more energy than anaerobic metabolism. Simple diffusion of oxygen would limit the size of a multicellular eukaryote, but animals evolved ways to transport oxygen to their tissues, which permitted an increase in size.
Explanation:
From Penn
Answer:
B
Explanation:
soil being depleted to nitrogen due to high runoff
Answer is Plants and animals both break a phosphate bond of ATP to release energy.
In both plants and animals adenosine triphosphate (ATP) is the main molecule for storing and transferring energy in cells. It is also called the energy currency of the cell. ATP molecule composed of three phosphate groups. These phosphate groups are linked to one another by two high-energy phosphoanhydride bonds. When energy is required by the cell, one a phosphoanhydride is bond broken removing one phosphate. As a result energy is released and ATP is converted to adenosine diphosphate (ADP).
