Answer:
This is an example of directional selection.
Explanation:
Directional selection is a type of positive selection where the evolutionary fitness of one genotype is higher compared to the other ones, thereby favoring the selection of one particular phenotype and shifting allele frequencies towards the selected genotype. In a biological context, the directional selection increases the chances for surviving and for reproducing in those organisms that have the alleles favored by this type of selection. Thus, the directional selection produces the loss of genetic variability and leads to the fixation of the dominant alleles.
The answer is A: epithelial tissue lines the surface of blood vessels and organs so you can't really cut off tis blood supply
Answer:
Five types of evidence for evolution are discussed in this section: ancient organism remains, fossil layers, similarities among organisms alive today, similarities in DNA, and similarities of embryos. Another important type of evidence that Darwin studied and that is still studied and used today is artificial selection, or breeding.
Explanation:
Answer:
B
Explanation:
The x coordinate is basically giving us the amount of fertilizer in grams.
The y coordinate is giving us the average height of the plant because of the corresponding fertilizer.
A point of (1,25) would tell us that 1 grams of fertilizer given, the average height of those plants would be 25 cm.
So, if we give 1 grams of fertilizer, those plants' average height became 25 cm.
From the answer choices, B is the correct answer.
