Biology, 28.01.2020 23:54 dimpleschris101
Mary bought three flowering plants for her garden. the first one has red tubular flowers filled with nectar; the second one has yellow, sweetly scented flowers; and the third one has large dish-like flowers with a musty odor.
what are the most likely pollinators of each flower?
a) bees , butterflies , ants respectively
b) birds , bees , and bats respectively
c) bees , beetles , and moths respectively
Answers: 1
Biology, 21.06.2019 20:00
Read the following scenario to answer the following question. over the past 60 years, many amphibian species have experienced significant population declines, and some species have become extinct. scientists suspected that local human activities such as the destruction of wetlands, regional pollution, and deforestation were the main reasons for these losses. however, research over the past 20 years reveals significant amphibian population declines in protected areas of the world, such as nature preserves and parks. these global declines suggest widespread problems including increased ultraviolet radiation, acid rain, and disease. in switzerland, for example, 14 of the 20 native amphibian species are threatened with extinction. when most populations of a wide-ranging amphibian species are lost and the few remaining populations are widely separated, we expect to see that a. the founder effect becomes increasingly important b. microevolution no longer occurs c. gene flow between populations is reduced d. artificial selection becomes a greater factor in microevolution
Answers: 2
Biology, 21.06.2019 23:50
Differentiation of cells changes the nucleic information. true false
Answers: 2
Biology, 22.06.2019 15:40
Which kind of mutation has occurred when the codon for an amino acid is changed to a stop codon? a. a silent mutation b. a missense mutation c. a frameshift mutation d. a nonsense mutation
Answers: 1
Mary bought three flowering plants for her garden. the first one has red tubular flowers filled with...
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