<h2>
short definition:</h2>
<u><em> a species is a population or groups of populations that can potentially interbreed freely within and among themselves.</em></u>
<u><em /></u>
<em><u> Subspecies, are subgroups within a species that have different traits </u></em>
<h2>
long definition</h2>
<em><u>A species is a group of organisms that (in the case of sexually reproducing organisms) can freely interbreed, producing fertile offspring. This definition has its problems, but overall, it encompasses the meaning of the word “species” in biology.</u></em>
<em><u></u></em>
<em><u>A subspecies is, as the name implies, a smaller population within a species that share a particular common trait. Usually a sub species is at least partially genetically isolated from it’s parent species, so that interbreeding is less likely to occur. Most often a sub species is physically separated from the rest of the species, and may have some specific physical differences from the rest of the species. However, they are still able to interbreed with members of the parent population.</u></em>
Human activities exacerbate the natural greenhouse effect.
<span>The </span>greenhouse effect<span> <span>is the
process by which radiation from a planet's atmosphere warms the planet's
surface to a temperature above what it would be without its atmosphere. If a
planet's atmosphere contains radiatively active </span></span>gases<span> <span>(i.e., </span></span>greenhouse gases) the atmosphere will radiate energy in all directions.
The correct answer between all the choices given is the
first choice or letter A. I am hoping that this answer has satisfied your query
and it will be able to help you in your endeavor, and if you would like, feel
free to ask another question.
Answer:
the distribution of humans around the world
life cycles of plants and animals features such as mountains, volcanoes, rivers, and glaciers
I'm not sure but I think it is Tokyo, New York, and Los Angeles.