The group of organisms can produce fertile offspring. That is what
makes the group of organisms a species.
The sun is Gaseous, and has three layers
Active Transport<span> is used when substances are to be transported against their concentration gradient ( from low concentration to high concentration ) by utilising energy from ATP.
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eg - Na+/K+ pump.
hope it helps u.....
Acute stress comes with a lot of adrenalin and for most people living ordinary lives lacks that. -hope this helps have an amazing day!!