Answer:
For example, the Milky Way galaxy is some 100,000 light-years across, and our closest galactic neighbor, Andromeda, is some 2.5 million light-years away. In other words, it takes light 2.5 million years just to travel from our galaxy to the one that is right next to us.
Explanation: Hope this helps if not lemme know
Answer:
Primary succession takes place over a long period of time on newly formed land, while secondary succession occurs quickly in areas that have disrupted by a natural disaster
Explanation:
The horsehoe crab because it was one of the first animals to ever live on earth
White blood cells fight disease
A species is a group of organisms capable of mating and producing offspring. This is another way of saying that a species is reproductively isolated.
