Answer:
<u><em>Community</em></u> would be the term used to describe all the species that live in the Arctic National Wildlife Refuge.
Explanation:
A community can be described as all the different species which live in an area at a particular time. Hence, community would be the term used to describe all the species present in Arctic National Wildlife Refuge.
A population can be described as the number of organisms of the same species living in a particular area at a given time. An ecosystem can be described as all the living and non-living factors of an area. A species can be described as organisms which can mate together to produce fertile offsprings.
Answer:

The force that blood exerts against the wall of a vessel is called <u>blood </u><u>pressure</u><u>.</u>
Class 10 - NCERT Book - definition.

The classification system will become more and more inconsistent.
When you cross two hybrids, the results always come in a 3:1 ratio as follows:
3 is the inheritance of at least 1 dominant allele
1 is the inheritance of two recessive alleles
Punnet Squares are very useful!
<u>T t </u>
T | TT | Tt |
t |<u> Tt | tt </u>|
Three out of 4 boxes have offspring that express the dominant trait (tall plants) and 1 out of 4 boxes expresses only the recessive trait (short plants).
Hope this helps! :)