Answer:
Reproductive success of an individual is measured in term of its genetic contribution to the future generation as compared to that of other individuals of the same population.
Explanation:
Natural selection is the ability of some organisms to survive better and reproduce more due to the presence of some beneficial genetic traits. These individuals are able to leave more progeny as compared to the other individuals of the same population that lack those genetic traits. Therefore, reproductive success represents the ability of an organism to leave more progeny to contribute more to the gene pool of future generations.
DNA is copied during replication.
Answer:
Genetic drift
Explanation:
Genetic drift is a change in genetic allele frequencies of a population. Bottleneck effect, caused by disasters such as in this case, causes genetic drift in a very rapid way hence reducing variability in a population. Reduced genetic variability in a small population is especially threatening because the chances of population surviving environmental changes get slimmer. This is because natural selection acts of genetic variability to get a population to adapt to changes in the environment.
Answer:
proto-oncogenes are normal genes while onco genes are cancerous genes.
Explanation:
Proto-oncogenes are genes which responsible to make protein and helps in controlled cell growth and proliferation but some time these proto-oncogenes can turned into onco genes because of some abnormal mutation and results in uncontrolled proliferation and cell growth which cause cancer.
Answer:
i believe it uses up the energy to produce their own food