Biotic and abiotic because it’s like living and non living
Answer:
the frequency of individuals with Type B blood in the population is 0.1977
Explanation:
Given:
Frequency of A allele is p = 0.24
Frequency of the individuals with blood type O is r = 0.38
Question: What is the frequency of individuals with Type B blood in the population, fB = ?
You need to apply the Hardy-Weinberg Equilibrium:
p²+q²+r²+2pq+2pr+2qr = 1
Here,
p, q and r are the frequencies of the alleles
Calculating the frequency of the allele q:

q = 1-p-r = 1-0.24-0.6164 = 0.1436
Frequency of individuals with type B blood:

Central nervous system. and automatically nervous system .it is mainly spinal cord system of the body.
Answer:
The last one is semi-permiable
Explanation:
alleles of different genes tend to be connected together when does genes are on the same chromosome the Offspring received one recessive allele from each parents
Hope it helps