It is because convergent evolution represents the independent evolution of similar features in species that don't have the same ancestor. In this case filamentous body forms evolved independently, but have the same function: an adaptation for a nutrition of decomposers.
Answer:
Neutron-capture inside stars.
Explanation: Although there are other minor contributions they are not only produced in stars that explode in supernova.
Answer:
B. Simple Cuboidal
Explanation:
Because the simple cuboidal epithelium consists of a single layer of cells that are as tall as they are wide. The important functions of the simple cuboidal epithelium are secretion and absorption. This epithelial type is found in the small collecting ducts of the kidneys, pancreas, and salivary glands.
Answer:
The environment plays a role in a mutant allele in a population because some mutations are more beneficial to the organism than other mutations.
Explanation:
Organisms with a beneficial allele mutation will be able to pass on their genes as they reproduce. The mutation makes them <em>fit</em> for survival in their environment. Other organisms <em>without </em>the beneficial allele won't be able to pass on their genes since it will be more difficult for them to survive in their environment. Natural selection will deem that the organisms with the mutation will survive better and be able to produce offspring with the same mutation.
The independent assortment of genes is a principle of Mendel and of genetics. Since humans are diploid organisms (they have 2 copies of their genetic information), we have that each gamete carries one of the two available alleles for each feature. These gametes are created in equal proportions.
We have that both parents are heterozygous for a feature, lets say H. Thus, their genotype is Hh. Hence, the child will get with probability 50%=1/2 H from the father and 50%=1/2 h from the father; same from the mother. By doing a Punnett square, we get that there is 1/4 chance that the child is HH, 1/2 chance that it is Hh and 1/4 that is hh. Since the disease is recessive (so both alleles are needed), we have that the chance that the kid has the disease is 1/4.
