<span>The question is asking us which type of diversity is characteristic of the variety of organisms within an ecosystem. These organisms would be for example frogs, treets, insects - different species, therefore the best answer is c. Species diversity. Each species would have its own genetic diversity, but this is too specific for the whole ecosystem - on the level of the ecosystem, species are a more useful distinction</span>
Answer:
b. The individual's' genetic composition
Explanation:
Natural selection is an occurrence in nature in which organisms with genes that have mutated to adapt to certain ailments, survive better than their mates. J.B.S Haldane made a hypothesis that this phenomenon of natural selection accounted for why people in Africa had developed resistance to malaria. Their hemoglobin, proteins, and other compounds that are necessary for the function of the red blood cells had been modified so that they would not easily be infiltrated by malaria parasites.
A.C. Allison confirmed this in his experiment which showed that people who had sickle cell mutations in the gene, beta hemoglobin were mostly found in regions where malaria was prevalent. Their genes had also been modified such that they were resistant to malaria.
Someone who is heterozygous for a recessive allele that codes for a disorder of some sort will not express the disorder in his or her genotype, but would be considered a carrier of the allele, and could pass it on to his or her offspring if the other parent is either heterozygous or homozygous for the recessive allele.
Answer:
In simple cuboidal epithelium, the nucleus of the box-like cells appears round and is generally located near the center of the cell.
Answer:
The answer is option C : a bacterium
