________ 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

Biology & Microbiology

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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

Biology & Microbiology

A dicentric chromosome has two

A) arms. B) centromeres. C) telomeres. D) mutations. E) centrosomes.

Biology & Microbiology

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

Biology & Microbiology

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

Biology & Microbiology