Which of the following is produced during the process of cellular respiration?
A carbon dioxide
B sodium chloride
C oxygen
D sugar
A carbon dioxide
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During attachment of phage to E. coli, the phage
A. actively seek out the bacteria. B. randomly bump into the bacteria. C. attach to proteins or carbohydrates on the bacterial surface. D. attach to the bacterial RNA. E. randomly bump into the bacteria AND attach to proteins or carbohydrates on the bacterial surface.
Your friends, who own a large citrus orchard, invited you to have dinner yesterday, and when you arrived, you found they had prepared a veritable feast on their patio. While dining, you discovered that the trees providing shade from the evening sun bore a variety of citrus fruit, including lemons, limes, oranges, and grapefruit – not on separate trees, as you would expect, but rather each of those trees were heavy with two or more types of citrus fruit each. One of your friends, noticing your amazement, laughed and said, “We planted fruit-salad seeds.” Obviously, that’s not the explanation, but how else could they have created their small fruit-salad canopy?
a. Lemons, limes, oranges, and grapefruit are the same fruit grown with exposure to various hormones. b. Pollen from multiple species are able to cross-fertilize, producing multiple unique fruit on each tree. c. Citrus trees are closely related, allowing for scions of multiple species to be grafted together. d. Blending together calluses from related plant species allows for the growth of chimerical plants.
Which hormone stimulates smooth muscle contractions during parturition?
a. oxytocin b. FSH c. HCG d. LH e. progesterone
Immediately outside the pulp cavity of a tooth is the:a
enamel. b. dentin. c. cementum. d. spongy bone. e. nerve.