Which of the following pertains to an improperly canned food product on a store shelf that bulges from microbial activity?

A) thermophilic anaerobic spoilage
B) hydrogen sulfide spoilage
C) mesophilic spoilage
D) bacterial soft rot
E) flat sour spoilage


Ans: C) mesophilic spoilage

Biology & Microbiology

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During differentiation, organs develop with different numbers of cells due to ____

a. cell adhesion molecules that are only present in some tissues b. cell migration c. cell determination d. the variable length of mitotic interphase e. microtubule rearrangement

Biology & Microbiology

Gastrulation in human embryos occurs about

___ after fertilization.

a. 5 days b. 2 weeks c. 4 weeks d. 2 months e. 5 months

Biology & Microbiology

In the accompanying figure, the formation of eggs would occur in the structure labeled as ____


a. 1
b. 5
c. 6
d. 9
e. 10

Biology & Microbiology

Which of the following methods is best for counting fecal bacteria from a stream to determine the safety of the water for drinking?

a. dry weight b. turbidity c. viable plate count d. membrane filtration

Biology & Microbiology