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.
The correct option is: DOING HOME ENERGY AUDITS.
One can reduce the uses of fossils fuel by conserving energy, recycling products, re-using materials and by living green. Almost 85% of US energy comes from fossil fuel. The use of fossils fuel has greatly increased and there is a critical need for the nation to reduce the consumption of fossils fuel and to find alternative means of energy.
Answer:
stimulates production of red blood cells is a correct answer.
Explanation:
function of the hormone erythropoietin: stimulates production of red blood cells
Erythropoietin hormone is produced by the kidney and its function is to promotes or support the formation of the red blood cells and to provide protection to the cells from the destruction.
Erythropoietin hormone stimulates the bone marrow to produce red blood cells and the function of the red blood cells is to transport oxygen to the body.
Answer:
It's A
The Testes store Sperm, Ovaries store the Eggs.
Explanation:
Answer:
Common ancestor.
Explanation:
The similar biochemical structure of cytochrome C in ground finches and in tree finches indicates that they are evolved from a common ancestor. The evolution of finches into ground finches and tree finches occurs due to their environmental conditions which compel them to adopt certain physical features and behaviour that helps them in obtaining food and survival in their environment.
