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
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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
________ 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).
Natural selection quickly eliminates harmful alleles from the population
Indicate whether the statement is true or false.
What hormone is most involved in labor?
a. estrogen b. prolactin c. oxytocin d. prostaglandin e. progesterone