The second one
One gene for a particular trait
Answer: 15
Explanation: I think but is a gamete has 23 chromosome it has 23 parents chromosome so it should be the same equal
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:
<em>Well, Since the elephant seals consume 200,000 calories from the squid and small fish, this means that the squid and the small fish get 2,000,000 calories from their food, thus they are able to sustain the population of elephant seals. Hope That Helps!</em>
