Biology, 14.12.2019 06:31 amanda2517
There are two species of larkspur that have two different size flowers; delphinium decorum has large, fully opened flowers and delphinium nudicaule has small bud like flowers. these two species are both fertilized by insects, but they cannot be fertilized by the same type of insect because the smaller flower of d. nudicaule will not permit larger insects to reach the nectar of the flower and the larger flower of the d. decorum is typically fed on by larger insects.
which type of isolating mechanism would this be?
a) postzygotic isolation
b) temporal isolation
c) behavioral isolation
d) habitat isolation
e) mechanical isolation
Answers: 3
Biology, 21.06.2019 20:50
Next pretest: evolution select the correct answer in a laboratory population of flies, the female flies are gray and the males are yellowish gray. biologists observed that all the male flies had an equal chance for reproduction, but the male flies with the brightest colors were more likely to successfully reproduce. what phenomenon could explain such a change? a sexual selection b. disruptive selection c. stabilizing selection d. directional selection
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Biology, 21.06.2019 21:30
92 sathe best for the question 11. most animals and plants reproduce sexually. this means that dna is passed down to new organisms from two parental organisms. which of the following is a key advantage of sexual reproduction?
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Biology, 22.06.2019 08:30
Which best describes a benefit of using dna technology in medicine? a) medicine can be produced in mass quantities. b) medicine can be distributed at a reduced cost. c) medicines have fewer side effects. d) medicines are resistant to antibiotics.
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Biology, 22.06.2019 10:10
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There are two species of larkspur that have two different size flowers; delphinium decorum has larg...
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