If a cell includes a mixture of variable numbers of wild-type and mutant organelles, this condition is known as ________
Fill in the blank(s) with correct word
heteroplasmy
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Staphylococcus aureus is a common foodborne disease, because it
A) grows on common foods. B) is present in some humans that work in food processing. C) produces several heat-stable enterotoxins. D) grows on many foods, is present in some humans that work in food processing, and produces several heat-stable enterotoxins.
Which of the following is useful in biological systematics?
A. Epidemiology B. Ecology C. Physiology D. All of the choices are correct.
Which of the following statements about plants and animals is false?
A. Complex multicellularity arose in the common ancestor of plants and animals and was retained in each of these groups. B. Animals and plants both use sophisticated adhesion mechanisms to bind their cells together. C. Plants and animals use different genes but similar genetic logic to govern development. D. Plants and animals use networks of different types of regulatory genes to guide their spatial organization. E. None of these statements about plants and animals is false.
Place the following events of parturition in the correct order.
(1) Stretch-sensitive neurons send signals to the hypothalamus. (2) Oxytocin receptors increase in the uterus. (3) Prostaglandin levels increase. (4) Estradiol levels increase. (5) Oxytocin levels increase. (6) Uterine muscles start to contract. A. 1,2,4,5,3,6 B. 4,2,1,5,6,3 C. 5,2,4,1,3,6 D. 1,6,4,2,5,3 E. 4,3,1,2,5,6