According to the Hardy-Weinberg principle, the frequencies of alleles remain constant in a population, but only under certain conditions. Which of these events
or conditions is MOST LIKELY to maintain Hardy-Weinberg equilibrium?
a. The alleles have no effect on which males and females mate and produce
offspring.
b. Immigration from a neighboring ecosystem increases the population by 50 percent.
c. A natural disaster reduces the population to about 20 percent of its previous
size.
d. The arrival of a new predator makes one of the alleles more advantageous
than the other allele.

d is the answer

sorry if its wrong!

answer: tributaries flow into rivers.

wetland is a biome that develops when the water gets accumulated in a land exhibiting a huge depression. these form either seasonally or permanently. the water in the wetland comes from rivers, lakes, ocean, flood, rain or other sources. the wetlands includes mangroves, marshes and peatland.

tributaries flow into the rivers develops a wetland because such water will get deposited in the depression and will restrict the original flow of tributary water. hence, water with low drainage current combines with the river water.

what bodys are there orbiting?