Student A who believes viruses are non living organisms.
Explanation- Viruses are not made out of cells, they can't keep themselves in a stable state, they don't grow, and they can't make their own energy.
Homologous structures are structures that we find across different species. They have the same organisation (they have the same parts) but have different functions (they are used for different things).
homologous structures can be used to interpret evolution, because they show that different species share common features which must have been inherited from a common ancestor.
These structures have a different function because different species use these parts for different purposes. This supports evolution by supporting the claim that organisms adapt (change) in response to their environment.
Hope that helps, sorry if unclear
C is correct i believe i think all the others are wrong but im not entirely sure
The Richter scale is a way of giving the intensity of all earthquakes a numerical value. this allows the strengths of different earthquakes to be compared. Because of this, i think the best answer is D
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.