Which of the following best explains how the stamens are important to plant reproduction? they contain nectar and proteins that attract insect pollinators. they grow into the pollen tube, which allows pollen to travel to the egg. they are the female part of the plant and hold ovules and the embryo. they are the male part of the plant and hold the pollen in their anthers.

The answer is D, Stamens are the male fertilizing organ of a flower, typically consisting of a pollen-containing anther and a filament.

1) gene flow

- it is described as the transfer of genes from one population to another population so that frequency of gene is increased.

-a zebra migrates to join a different herd of zebras.

2) natural selection

- a mechanism of evolutionary change in which individuals with advantageous traits survive and reproduce whereas the others ( those that can not adapt) eliminate from the population.

-competition for sunlight leads to taller trees.

3) mutation

- permanent change in the nucleotide sequence of dna ( genetic material) that could have harmful or useful consequences.

-the dna of a snake changes to make its venom stronger.

4) genetic drift - it is a random phenomenon ( that occurs by chance such as fire) that results in change in the gene frequency in a small population.    

-a grassfire randomly sweeps through a population of buffalo and kills most of the animals.

explanation:

d.

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