Argentine fire ants entered the United States in
the
a. 1920s.
b. 1930s.
c. 1940s.
d. 1950s.
e. 1960s.
B
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Antibiotics that disrupt bacterial ribosomes can also affect
A. eukaryotic mitochondrial ribosomes. B. ribosomal RNA. C. eukaryotic large ribosomal subunit. D. eukaryotic small ribosomal subunit.
Canadian researchers found that loud noise had
which of the following effects on a local songbird? a. 20% reduction in weight gain b. 15% fewer offspring c. 10% increase in external parasites d. 39% more male offspring e. none of these
Colostrum is:
a. a protein fluid produced by the mammary gland. b. the fluid secreted by the vagina in response to sexual stimulation. c. the hormone that stimulates lactation. d. the hormone that stimulates ejection of milk into the breasts. e. a fluid secreted by the uterus during menstruation
The _________ membranes stack up to form the ________ of the chloroplast.
A. cristae, grana B. thylakoids, grana C. ER, thylakoids D. Golgi, ER