Answer:
I think it's D, but it could be B.
Explanation:
Terrestrial ecosystems (tetrapods)
The nutrients in some soils could be toxic to microorganisms/fish in those ponds or lakes.
<span>Proliferation of lymphocytes occurs immediately after activation, as well as the encounter of antigen. First, these antigen are bound, after which activation begins. Activation immediately leads to proliferation, as well as differentiation. Proliferation is an increase in the number of something, in this case, in the number of lymphocytes, or white blood cells. </span>
Answer:
The photosynthesis chemical equation states that the reactants (carbon dioxide, water and sunlight), yield two products, glucose and oxygen gas.