Answer:
A. Respiration
Explanation:
The process in which oxygen atoms are made available to the cell of animals is called cell respiration. In cell respiration the food molecules undergo process which is called food oxidization, that make it available to be absorbed by the animal cell.
The gradual abundance of oxygen (by product of photosynthesis) made it possible for aerobic organisms to grow more and evolve.
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Answer:
Uses each strand of a DNA molecule as a template for the creation of a new strand. (Option A)
Explanation:
DNA replication: It is defined as the uses of each strand of a DNA double helix act as a template for the creation of a new complementary strand. During the process of DNA replication, one leading strand (new strand) is made as a continuous piece and another lagging strand is made in small pieces.
DNA replication process, in addition to DNA polymerase, requires other enzymes such as DNA ligase, DNA helicase, DNA primase, and topoisomerase. DNA polymerase is the key molecule in the DNA replication, it is responsible for the synthesizing DNA. They help to add one by one nucleotide to the growing DNA chain and incorporating only those which are act as complementary to the template.
The two types of limiting factors are Density - dependent and Density independence. <span> Density-dependent limiting determinants depends on the community size; the comprehensive population, the consequential influence a density-dependent limiting agent will ought. Density-independent limiting determinant does not really depend on inhabitants dimension, alternatively they change all populations proportionately. </span>
