<span>Soil creation is an outcome of successions that are carried out. Succession involves a sequence of stages which includes climax stage. It can be primary or secondary too. On the primary succession, colonization of habitats is involved. Reestablishment of a community occurs on the secondary succession. Most of the organisms and other organic components have been ruined.</span>
Within an individual organism, the specific combination of alleles for a gene is known as the genotype of the organism, and (as mentioned above) the physical trait associated with that genotype is called the phenotype of the organism.
Coupled transport is also known as co-transport. Plant cells use the hydrogen gradient created by proton pumps to actively transport nutrients to the cells. Electrogenic pumps can be coupled to actively transport other substances. Example- cells pump H+ ions out of cell then use the diffusion of H+ back into cell down its gradient to drive the uptake of sucrose into cells.
Answer:
A pollen tube grows from the pollen grain into the ovary
Explanation:
Water is needed for fertilization in several plant groups because the sperm needs to swim to meet the non-motile eggs of the female organs.
<em>However in angiosperms, the pollen germinates and a structure known as pollen tube which contains the male gametophyte (sperm) grows into the ovary where the ovule is located and the male gametophyte is deposited in the ovule to initiate the fertilization process.</em>
<em>Hence, water is really not necessary for fertilization in the angiosperms.</em>
