Viral RNA is transcribed from viral DNA attached to host DNA _____
Fill in the blank(s) with correct word
Answer: HIV step 7
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A benefit of global warming includes
a. farming in areas that were too cold in the past. b. more open shipping channels in the Arctic. c. commercial fishing in the Arctic ocean. d. milder winters in regions far to the north. e. all of these.
Which of the following statements is false about
brown-headed cowbirds? a. They live as commensals with bison and cattle. b. They are insect-eaters. c. Females can lay thirty eggs in a season. d. Cowbird hatchlings are recognized as imposters by host parents. e. They now parasitize at least fifteen species of native North American birds.
Which of the following statements about heartwood is false?
a. It functions in conduction. b. It is a storage site for waste products. c. It is resistant to decay. d. It provides structural support. e. It is located in the center of a tree.
Which of the following substances functions in the body's inflammatory response to prevent blood clots, regulate body temperature, and open airways to the lungs?
A) carotenoids B) leukotrienes C) prostaglandins D) melatonin