What was the niche filled by the first fish?

a. Hunting in intertidal communities

b. Scavenging the ocean bottom.
c. All of these choices.
d. Feeding on photosynthetic surface organisms.


b

Biology & Microbiology

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The series of tunnel-like membranes functioning in transport and storage are the ________.

A. Golgi apparatus B. endoplasmic reticulum C. chloroplasts D. mitochondria E. lysosomes

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"Rice-water stools" are associated with disease caused by which organism?

A. Vibrio parahaemolyticus B. Vibrio cholerae C. Helicobacter pylori D. Campylobacter jejuni E. Vibrio vulnificus

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A population with zero growth is indicated by

a. A. b. B. c. C. d. D. e. none of these

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Which of the following designates a normal human female?

a. XXY b. XY c. XX d. XYY e. XO

Biology & Microbiology