<span>Generally Labrador retrievers are black, brown, or yellow. in a cross of a black female with a brown male, results can be either all black puppies, 1/2 black to 1/2 brown puppies, or 3/4 black to 1/4 yellow puppies. So there must be 2 genes responsible for these coat colors in Labrador Retrievers.</span>
A stable ecosystem would probably be able to provide food and shelter for whom lives in it.
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Answer:
The diffusion of water across the selectively permeable membrane of an alga is called osmosis
Explanation:
They’re known as gateway drugs.
Choice #1 & Choice#4 I believe