________ is thought to have caused a harmful dinoflagellates bloom in the Chesapeake Bay area
a. DDT and PCB
b. Agricultural runoff
c. Urban runoff
d. Human waste
b
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In terms of blood pressure regulation, the kidneys control ____
a. intracellular volume b. thirst c. sweating d. extracellular volume e. arteriole constriction
A dicentric chromosome has two
A) arms. B) centromeres. C) telomeres. D) mutations. E) centrosomes.
Which one of the following structures is part of the internal cytoskeleton that supports a cell?
A) rough and smooth endoplasmic reticulum B) flagella and cilia C) microtubules and microfilaments D) lysosomes and peroxisomes E) ribosomes and rough endoplasmic reticulum
Phagocytes are attracted by all of the following EXCEPT ______.
A. chemical products of microorganisms B. components of the complement system C. phospholipids released by injured cells D. enzymes released by lysosomes