What is a zoonosis?

A. A disease caused by normal human microbiota from the respiratory tract
B. A disease caused by changes in the balance between normal microbiota
C. A disease that spreads naturally from animals to humans
D. A disease caused by normal microbiota entering a body site where they do not normally occur


C. A disease that spreads naturally from animals to humans

Biology & Microbiology

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Which type of mutation substitutes one amino acid for another?

A) nonsense B) missense C) sense D) antisense

Biology & Microbiology

An example of an animal that has a nerve net of interconnected neurons instead of a brain is a(n) ____

a. planarian b. earthworm c. grasshopper d. sea anemone e. squid

Biology & Microbiology

What enzymes are used to cut DNA molecules? How do they work?

What will be an ideal response?

Biology & Microbiology

Elephantiasis is caused by damage of valves that affect the flow of:

a. intestinal contents b. lymph c. blood d. urine e. cerebrospinal fluid

Biology & Microbiology