Answer:
The cell membrane structure is very important because everything alive has cell membranes. The model used to describe the cell membrane is called the <u>fluid mosaic</u> model.
Answer:
nitrogen fixation, nitrification, denitrification, anammox, and ammonification
Explanation:
This is the chronicle of evolution over millions of years of geologic time engraved in the order which fossils appear in rock strata.
Answer:
<em>e. speciation</em>
Explanation:
The definition of speciation is: the evolutionary process by which populations evolve to become distinct species.
In this scenario, the bears that were once of the same species evolved in order to adapt to their environment. Once they evolved, they could no longer produce with each other, as they are now different species.
Make sure you post the picture of the tree, so I can answer.