Answer:
Darwin proposed the theory of natural selection to explain the process of evolution. According to Darwin’s theory of natural selection, all organisms have the potential to reproduce limitlessly irrespective of the fact that each species maintain a constant density over time. However, the struggle for existence, i.e. the competition among individuals for available resources to survive and reproduce, put a check on species density (D) and maintains it at a constant level (B). Survival of fittest is unequal ability of individuals to survive and reproduce based on suitability of their inherited characters to prevailing environmental conditions (A). It imparts the reproductive advantage to certain organisms which account for major part of the gene pool of the species. Thus, natural selection favors the individual with survival and/or reproductive advantage over others under existing environmental condition (E). Thus, the correct answer is option C.
What portion of a pre-mRNA molecule may be cut to be discarded?
ans:- In eukaryote cells the primary transcript (pre-mRNA) is processed. One or more sequences (introns) are cut out.
Since the options have not been given the equation is incomplete. The complete question is as follows:
Thinking sociologically about a problem such as unemployment, we understand that this issue is
-the result of bad choices by individuals.
-inevitable.
-a personal problem.
-a social issue involving the operation of society.
Answer: -a social issue involving the operation of society.
Explanation:
Unemployment occurs when a person who is actively searching for work is unable to get employment. The unemployment is a social issue. This issue requires the operation of the society by the way that more job options and services generate in the society which can help the unemployed people to seek jobs and earn their wages. The government should take initiative to generate job opportunities keeping in mind the skills, expertise and age of the registered unemployed people.
Answer:
Species of the genus Leishmania
Explanation:
The details of the research can be studied at : https://www.sciencemag.org/news/2009/09/mystery-desert
Nuclear fusion<span> is the process of combining two lighter nuclei into a single heavy nucleus (part of an atom). This process is also called a nuclear reaction and it releases a large amount of energy. <span>In medium-sized stars such as the Sun, nuclear fusion almost always means the fusing of hydrogen atoms to form helium, but larger stars can produce elements as heavy as iron. </span></span>
