Viruses can cause cancer in a host cell by ____

a. disrupting the plasma membrane
b. altering the DNA
c. slowing its metabolism
d. destroying the nucleus
e. removing gene sequences


ANSWER: b

Biology & Microbiology

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The ____ system is responsible for mineral storage in the body

a. circulatory

b. digestive c. respiratory d. skeletal e. urinary

Biology & Microbiology

A plant cell with 64 available ATP molecules could split how many N2 molecules with the assistance of nitrogenase?  

A.  2 B.  4 C.  16 D.  32 E.  64

Biology & Microbiology

The organism Caenorhabditis elegans, a member of the phylum ____, is an important model organism

for studies of the genetic control of development.

a. Arthropoda b. Onychophora c. Nemertea d. Annelida e. Nematoda

Biology & Microbiology

The blending of two or more kinds of molecules is a(n)____

a. compound b. isotope c. reactant d. mixture e. chemical bond

Biology & Microbiology