Explanation:
I'm guessing the answer is oxygen.
The horse will give 32 chromosomes and donkey will give 31 chromosomes to the offspring.
The offspring has 63 in total.
It is odd so it can not produce normal germ cell. So it is sterile.
The moon revolves around the Earth as a natural satellite.
False, I'd say. Mammals usually adapt based on environment. Now, I know predators are "apart" of the environment, but I don't think that'd be it. I'd bet more money on saying mammals evolve based on environment adaptation. Sorry if I didn't answer your question or if I didn't get my point across well.
Each of a Number of small areas of habitat, typically of one square meter, selected at random to act as samples for assessing the local distribution of plants or animals.
