Answer:
C) The ancestral population probably had this type of blood pigment, but it was lost through genetic drift in the other 29 populations.
Explanation:
The presence of a blood pigment that is extraordinarily effective at carrying oxygen is a beneficial genetic trait and should be favored by natural selection. According to the given information, the organisms of only a single population of pupfish have this trait while the others do not have it.
This means that the trait was present in the ancestral populations of the pupfish but was lost in the other populations due to some accidental/chance event. Loss or fixing of an allele by a chance event is called genetic drift. It does not include any natural selection but results in a random change in the allele frequencies of a population. Therefore, loss of the trait by genetic trait might have occurred in the other populations.
In china they recycle coal to warm the house dueing winter and every person receive an specific amount in the us is common but we use fossil fuels to do everything
Answer:
<h3>for digestive system ( similarities)</h3>
Explanation:
1. All three digestive systems take up majority space inside their bodies
2. All three of the animals food prey begin through the mouth and end through the anus
Answer:
Having a battle in my mind. First and last options are out. I attached an image to help you figure it out.
Answer:
splenic vein
Explanation:
it helps to locate pancreas in the transverse section