B) Genotypes are directly selected
Several species or warblers can live in the same spruce tree only because they occupy different nitches within the tree. Hope this helps!
It’s mass stays constant .weight changes depending on gravitational force
Answer:
As the outer layer of your skin separates your body from its environment, the cell membrane (also known as the plasma membrane) separates the inner contents of a cell from its exterior environment. This cell membrane provides a protective barrier around the cell and regulates which materials can pass in or out.
Explanation:
