Darwin reasoned that natural selection organisms had adapted to new environments, giving rise to new species. It is a principle of speciation.
<h3>Speciation, natural selection and environment</h3>
Different environmental pressures (e.g. the type of food) lead to different evolutionary pathways in genetically related organisms.
The organisms subject to different environments evolve as a consequence of natural selection in order to adapt (adjust) to their corresponding environments.
In consequence, this process may eventually lead to speciation due to the emergence of reproductive isolation barriers.
Learn more about natural selection here:
brainly.com/question/23929271
Answer:
Jellyfish start off their life in the polyp stage. The stage we are used to seeing (e.g. the jellyfish looking stage) is called the medusa stage.
Explanation:
Look at this image and see how a jellyfish actually starts out as not free-swimming.
Answer:
d. multiple alleles and codominance
Explanation:
ABO blood group is controlled by three alleles instead of the usual two. Hence, it is an example of multiple alleles. These three alleles are IA, IB and i. IAIA genotype leads to production of A antigen hence A blood group. IBIB genotype leads to production of B antigen hence B blood group. When they are present together (IAIB) both A and B antigens are produced resulting in AB blood group. Hence ABO blood group is also an example of codominance.
Both IA and IB are dominant over the i allele. So IAi and IBi will produce A and B blood group respectively. ii genotype leads to O genotype.
<span>there are several differences, here are some:
kingdoms: sunflower = plant; amoeba = ProtistaCell
membranes: sunflower = cell wall; amoeba = semipermeable membrane only
organelles: sunflower = cholorplasts; amoeba = pseudopod
</span><span>Cell organization: sunflower = differentiated multicellular: amoeba = single cell
<span>Habitat: sunflower = confined to land areas; amoeba = confined to water
hope this helps</span></span>
A. unconscious
It's A because it controls the involuntary actions like our heart beat or breathing. The actions we aren't consistently remembering to do.
