<span>a. where a freshwater river runs into an extension of the ocean</span>
"Hormones".
"nutrients" such as "water", glucose , amino "acids", "minerals" and "vitamins".
Water substances, such as "carbon dioxide" and urea.
I hope this helps.
I listed 7 hope that's ok there in "parentheses".
<span>Dolores Huerta was a woman of color who fought discrimination.
Rosa Parks also fought discrimination by sitting in the front of the bus.</span>
Population is a specific species and community is more so talking about all of the species as a whole in an environment.