What do the Gram stain, acid-fast stain, and endospore stain have in common?

A. used on a wet mount of the specimen
B. use heat to force the dye into cell structures
C. outcome based on cell wall differences
D. use a negative stain technique
E. are simple stains


C. outcome based on cell wall differences

Biology & Microbiology

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The shark rectal gland _____

A) is involved in osmoregulation B) is responsible for excretion of undigested residue C) secretes a hypotonic solution D) concentrates electrolytes necessary for homeostasis in a hypertonic environment

Biology & Microbiology

________ microbiology involves the use of microorganisms to make products such as antibiotics, vaccines, steroids, alcohols, vitamins, amino acids, and enzymes.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

Natural selection quickly eliminates harmful alleles from the population

Indicate whether the statement is true or false.

Biology & Microbiology

What hormone is most involved in labor?

a. estrogen b. prolactin c. oxytocin d. prostaglandin e. progesterone

Biology & Microbiology