Answer:
Explanation: In facilitated diffusion, molecules diffuse across the plasma membrane with assistance from membrane proteins, such as channels and carriers. A concentration gradient exists for these molecules, so they have the potential to diffuse into or out of, the cell by moving down it.
The first piece of evidence that needed to be found to support the endosymbiotic hypothesis was whether or not mitochondria and chloroplasts have their own DNA and if this DNA is similar to bacterial DNA. This was later proven to be true for DNA, RNA, ribosomes, chlorophyll (for chloroplasts), and protein synthesis.
The medial indentation on the kidney called hilum....
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Start with the one that you know better the beginning of essays are hakf the tine awkward anyway.
Small or large disasters can easily cause genetic drift to small populations because the population is small. There are not enough of them to keep the area populated when a natural disaster occurs sometimes
