Which of the following cell-counting methods is capable of differentiating between living and dead cells?
A) turbidity measurement
B) microscopic count
C) dry weight
D) Coulter counter
E) flow cytometer
Answer: E
Biology & Microbiology
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Ingested dietary substances must cross cell membranes to be used by the body. This process is known as _____
A) ingestion B) digestion C) hydrolysis D) absorption E) elimination
Biology & Microbiology
Which of the following enzymes would you find in a cow's gut, but not in yours?
A. cellulase B. pepsin C. collagenase D. carboxypeptidase E. acetylcholinesterase
Biology & Microbiology
Ancestors of __________ may have possessed mitochondria which were lost or reduced during
evolutionay history. a. Laminaria b. Amoeba c. Euglena d. Giardia e. Paramecium
Biology & Microbiology
Both insects and roundworms exhibit ______, whereas sponges, snails, and leeches do not.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology