The respiratory and circulatory systems bring oxygen and nutrients to the cells. The respiratory and circulatory systems work together to maintain homeostasis. The respiratory system moves gases into and out of the blood.
Answer: "sexual" ; in the sense that they reproduce "sexually" —and NOT asexually.
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TCGAGTC
Adenine (A) always pairs up with Tymine (T) while Cytosine (C) always pairs up with Guanine (G)
When the number of phytoplankton drastically decreased, this would affect the entire food web.
Phytoplankton are plankton consisting of microscopic plants. They are the autotrophic components of the plankton community and a key part of oceans, seas and freshwater basin ecosystems.
