Genetic diversity. Meiosis allows crossing over and independent assortment to increase genetic diversity
True: Because soccer fields need large areas or spaces and a town with already built houses would not suffice. In turn, the open available areas with trees and wildlife will be destroyed and mountains will be quarried and forcefully flattened to pave way for the fields. Soil erosion will happen because this will cause an imbalance on mountains, diverting the flow of the water to the low lands without trees seeping it. In addition, when these fields are already made, maintenance must also be sustained such as making the grass greener and healthier by putting pesticides and routine watering of soil to keep its moist which will alter the natural soil quality.
Answer:
b) temporal isolation
Explanation:
Temporal isolation occurs when two species of similar population dwelling in the same habitat or environment reproduce at different times of the day or at different seasons. They reproduce in the same habitat, but at different seasons, making it difficult for both species of a similar population to interbreed.
Temporal isolation occurs due to the difference in the breeding seasons of the two species of clams living in the same habitat, as one releases gametes into the water in early spring, while the other releases gametes into the water in late summer.
Answer:
Explanation:
Heterochromatin in terms of accessible of the cell's machinery is termed as the region whereby the nucleosomes are tightly packed toghether such that the cell's transcriptional machinery is unable to access this regions. Examples of regions where this is found is at the centromeres, the telomeres and some other few regions in the chromosomes.
Euchromatin in terms of accessibility is the region wherein the nucleosomes are loosely packed such that the cellular processes machines is able to get access to the DNA.
The cell makes DNA in highly compatible state accessible by understood some epigenetic mechanisms such as modification of the histone tails. An example is acetylation; this allows addition of an acetyl group to specific regions on the tail of particular histones that allows for the unwrapping of the history from the DNA making them accessible. This is carried out by some enzymes known as histone acetyltransferases (HATs). Another example is phosphorylation: this does the same as acetylation.
Under ideal conditions, populations can grow exponentially. The growth rate increases as the population gets larger. Most populations do not live under ideal conditions and grow logistically instead. Density-dependent factors slow population growth as population size nears the carrying capacity.