In facilitated diffusion, substances move into or out of cells down their concentration gradient through protein channels in the cell membrane. Simple diffusion and facilitated diffusion are similar in that both involve movement down the concentration gradient.
Answer:
it can result in fish kills and restrictions on human consumption it can change the physiology of fish it can cause long-term alterations of aquatic ecosystems
Explanation:
The second stage of prenatal development begins at about two weeks after conception. at this point, the growing bundle of cells is called an embryo.
Answer:rabbits
Explanation:an owl or fox can kill the rabbit and eat it
Answer:
all of the above
Explanation:
gravity makes a planet have a combination go straight yet go around the sun at the same time creating an ellipse
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