Biology, 21.05.2021 16:10 Elephants12
Without genetic variation, the mechanisms of evolutionary change will not occur. There are several sources of genetic variation
within a breeding population: sexual reproduction, mutation, and gene flow. Specifically, sexual reproduction contributes to
genetic variation and as a result, evolution, through recombination. Describe recombination and analyze how it contributes to
genetic variability. Choose ALL that apply.
Answers: 3
Biology, 22.06.2019 00:40
Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism
Answers: 2
Biology, 22.06.2019 10:30
16. which of the following accurately describes a step within transcription? a. dna polymerase uses one strand of rna as a template to put together nucleotides. b. the dna strand is used as a template for which a complementary rna strand can be produced. c. the rna strand forms a template by which dna can be built. d. the rna strand is produced within the cytoplasm.
Answers: 3
Biology, 22.06.2019 16:30
In a leaf, dermal tissue a) stores food b) stores carbon dioxide c) releases oxygen into the air d) transports water from the roots
Answers: 1
Biology, 22.06.2019 17:00
Which of the following describes what an activator an enhancer are
Answers: 2
Without genetic variation, the mechanisms of evolutionary change will not occur. There are several s...
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