There are five mechanisms involve in diversity of organisms:
genetic drift, mutation, natural selection, gene flow and non random mating.
Explanation:
Genetic drift: It is a mechanism in which frequency of the allele changes within a population due to random sampling. It causes decrease in diversity in organism and can result in new species.
Mutation: Mutation in the genes is the most important reason of diversity.the change in DNA causes introduction of new alleles. Harmful mutations do not le species evolve by delimiting them from reaching sexual maturity.
Gene flow: The allele flow happens when a new gene is introduced into a population either by immigration or random mating. when two populations of same species share genes, variation occurs.
Natural selection: The favourable traits for survival are transferred to the offspring. It allows them to adapt better to the environment. It allows maintenance diversity of organism.
Non random mating: The mating between the individual with varied genotype will result in genetic variation.
According to Charles Darwin what is one reason that not all organisms survive in nature?
<span>B. There are more organisms born than resources can support.</span>
Answer: The advancement in the science and technology also comes with some of the risks which needs to be maintained at the time of surgery.
Explanation:
The fluoroscopy involves the use of X-rays, a form of ionizing radiation which increases the chances of radiation induced cancer.
Though this risk depends on the risk length of procedure and intensity of rays.
The higher intensity of the rays can also cause burns on the skin which can be equivalent to the sun burns.
The brightness of the screen is also introduced so that the patient is exposed to less intensity of rays.
Oxygen is a small molecule and it's nonpolar, so it easily passes through a cell membrane. Carbon dioxide, the byproduct of cell respiration, is small enough to readily diffuse out of a cell. Small uncharged lipid molecules can pass through the lipid innards of the membrane.
Answer:
The secondary consumer is the owl!
Explanation:
The mouse is the primary consumer. Then the second consumer is the owl! (See? How those words are similar? Secondary and second.) Therefore the owl is the secondary consumer. Hope this helps! <3
