question one is actually mass, and question 2 is D.
Genetic drift is a process in which allele frequencies within a population change by chance alone as a result of sampling error from generation to generation. Genetic drift is a random process that can lead to large changes in populations over a short period of time.
Competition help to regulate population growth since only those who are able to obtain food survive.
Crop plants and weeds may compete for water and for sunlight.
Farmers spray herbicides early in the growing season to avoid competition between crop plants and weeds.
<h3>What is the effect of competition on population?</h3>
Competition among species help to regulate population growth by ensuring that only those who are able to obtain food survive. Thus, only fit individuals of a species survive.
Crop plants and weeds may compete for water because water enables them to carry out metabolic activities of growth and development.
Crop plants and weeds may also compete for sunlight and they need sunlight to carry out photosynthesis.
Farmers spray herbicides early in the growing season in order to avoid or reduce competition between crop plants and weeds.
In conclusion, competition among species helps to control overpopulation.
Learn more about competition among species at: brainly.com/question/9428741
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Answer:
<em>The correct option is D) The four nitrogen bases of DNA combine is threes to produce only 20 amino acids.</em>
Explanation:
Our DNA is made up of four nucleotide bases. The genetic codon can produce 20 different amino acids based on the sequence. The genetic code which codes for a certain amino acid remains the same for all types of organisms whether be prokaryotes, animals or plants. Hence, the genetic code is considered universal as the four nitrogen bases combine to form only the 20 different amino acids in all types of organisms alive.
Answer:
As the body tries to fight the infection, the immune system causes inflammation to make it hard for the virus to copy itself. The process of fighting the infection causes most of the symptoms people have. As the virus makes its way down to the lungs it can cause the lungs to become inflamed. This can lead to pneumonia.
Explanation:
