The lymph nodes function to ___ the lymph.
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In the following diagram, what is represented by “C”?
In the following diagram, what is represented by “C”?
The lungs excrete nitrogenous wastes.
The lungs excrete nitrogenous wastes.
Rods provide color vision while cones are better suited to n…
Rods provide color vision while cones are better suited to night vision (black and white).
Process by which substances (lead, mercury, PCB, DDT) become…
Process by which substances (lead, mercury, PCB, DDT) become more concentrated in the higher trophic levels of a food web.
Red bone marrow serves to store fat.
Red bone marrow serves to store fat.
Earthworms are in the phylum ____.
Earthworms are in the phylum ____.
An underground horizontal stem.
An underground horizontal stem.
Most bacteria are producers.
Most bacteria are producers.
In the following diagram, what is represented by “B”?
In the following diagram, what is represented by “B”?