Answer:
The organism should be classified as an arthropod because it has an exoskeleton and jointed legs.
Explanation:
I took the test on Edgeniuty
I shows that living things can only come from living things.
After hundreds or even thousands of generations both alleles for sickle cell anemia are still common in those of African ancestry. This is supported by two mechanisms: heterozygote advantage and gene flow.
Heterozygote advantage
When an allele is said to be heterozygous, it is carrying one copy of a gene. For example if one carries a copy of sickle cell allele, it will stay in the population even after many generations — natural selection will not be able to remove it and it will be passed on through generations. So, having one copy of that allele is advantageous but not deleterious.
Gene flow
With humans migrating throughout the different parts of the world, sickle cell allele is passed from one person to another or in different populations. It is actually advantageous to have one copy of this allele especially if there’s malaria in the area, which the allele is resistant.
Answer:
None of these.
Explanation:
The nucleus accounts for nearly all mass in an atom. It is positively charged. It is made up of protons and neutrons. The electron cloud surrounding the nucleus is 100,000 times the size of the nucleus.
