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ollegr [7]
3 years ago
11

Drag the terms on the left to the appropriate blanks on the right to complete the sentences. Reset Help adaptive radiation allop

atric speciation sympatric speciation polyploid speciation reproductive barriers 1. In , a population isolated by a geographic barrier becomes a new species as it accumulates changes by natural selection or genetic drift. 2. In , a new species may arise as mating and gene flow are reduced between populations that share the same area. 3. Many plant species have formed by , in which accidents in cell division result in extra sets of chromosomes. 4. Both allopatric speciation and sympatric speciation depend on the establishment of , which prevent(s) gene flow between a new species and its parent species. 5. occur(s) when a species gives rise to many new species after colonizing a region with diverse habitats. SubmitRequest Answer Provide Feedback Next
Biology
1 answer:
Degger [83]3 years ago
7 0

Answer:

1. In allopatric speciation, a population isolated by a geographic barrier becomes a new species as it accumulates changes by natural selection or genetic drift.  

2. In sympatric speciation, a new species may arise as mating and gene flow are reduced between populations that share the same area

3.Many plant species have formed by polyploid speciation, in which accidents in cell division result in extra sets of chromosomes.

4.Both allopatric speciation and sympatric speciation depend on the establishment of reproductive barriers, which prevent(s) gene flow between a new species and its parent species.

5.Adaptive radiation occurs when a species gives rise to many new species after colonizing a region with diverse habitats

Explanation:

The sentences 1-3 and 5 are the definitions of the terms in bold. Sentence 1  describes allopatric speciation; Sentence 2 describes sympatric speciation; Sentence 3 describes polyploid speciation; Sentence 5 describes adaptive radiation.

Regarding to sentence 4, reproductive barriers are essential to stop the genetic flow that could prevent speciation by genetically homogenizing populations.

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The voltage across the membrane of a neuron that is at rest and not sending out signals is called the resting membrane potential, or just the resting potential. The concentration gradients of ions across the membrane and the amount of each type of ion that can pass through the membrane determine the resting potential. When a neuron is at rest, there are different levels of sodium and potassium on both sides of the cell membrane. Ions move down their gradients through channels. This creates a difference in charge, which gives rise to the resting potential.

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<em />

<em>Your question is incomplete, but most probably your full question was </em><em>Hyperpolarization means that the membrane potential becomes  Group of answer choices </em>

<em>more negative than the resting potential </em>

<em>more positive than the resting potential</em>

Learn more abour hyperpolarization here:

brainly.com/question/12982897

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