Answer:
fruit flies can make 50 eggs, witch can become adults in less then a week. but we have items that are used to kill them. so there population starts to go down then rises back up then gose back down
Explanation:
Which form of natural selection on polygenic traits results in the creation of two distinct phenotypes? The answer is, <u><em>B. Disruptive selection</em></u>
The answer should be B if I help you out pls mark me as a brain less
Answer: A) Black trait is dominant
B) The genotypes of the parents must be Bb
Explanation: Let B represent the allele for black colour and b represent the allele for white colour. If the offspring between 2 black mice show the ratio of 3 black mice to 1 white mouse, it then means that the two parents are heterozygous for black colour, that is each of them have one allele for black colour (B) and one allele for white colour (b). They both have a genotype of Bb.
Bb x Bb = BB, Bb, Bb, and bb.
This means 1BB : 2Bb : 1bb
BB is black, Bb is black while bb is white which gives a ratio of 3 black mice to one white mouse. For Bb to manifest as black, it means that B is dominant to b.
Answer:
RBC's?
Explanation:
I'm not sure if this is what is being asked but red blood cells made up about 80% of all of the cells in the human body. I hope this is what you need:)
