Answers: 3
Biology, 21.06.2019 22:00
Consider darwin's first writings on the theory of natural selection. an important point of darwin's essay on the principle of population, written in 1798, was a peer's observation that in nature plants and animals produce far more offspring than can survive, this observation can be attributed to a) charles lyell. b) thomas malthus. c) jean-baptiste lamarck. d) johann friedrich meckel.
Answers: 2
Biology, 22.06.2019 00:10
Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.
Answers: 1
Biology, 23.06.2019 08:00
Lydia is walking in the woods at night to observe owls. she hears a rustling behind a tree, which startles her and causes her body to go into a fight or flight response as the sympathetic nervous system is activated. what is likely to happen to her digestive system during this response? a. the enteric nervous system will speed up digestion to use energy. b. the peripheral nervous system will speed up digestion to use energy. c. the peripheral nervous system will slow down digestion to conserve energy. d. the enteric nervous system will slow down digestion to conserve energy.
Answers: 2
What is another term for an educated guess...
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