<span>phospholipid bilayer, which is two layers of phospholipids back-to-back</span>
A. occurs mostly in males. Females may exhibit symptoms but rarely. Female carriers are asymptomatic (not affected). Characteristic cannot be transmitted male to male. Affected males transmit the trait to all daughters.
Answer:
Natural selection causes change in allele frequencies within a population.
So option A is correct one.
Explanation:
Natural selection generally work on an organism’s phenotype, or observable features. Phenotype is often largely a product of genotype (the alleles, or gene versions, the organism carries). When a phenotype produced by certain alleles helps organisms survive and reproduce better than their peers, natural selection can increase the frequency of the helpful alleles from one generation to the next – that is, it can cause microevolution.
Answer:
In most trees, the area just under the bark layer contains moisture in the form of sap and water. And since water is a better electrical conductor than wood, lightning striking a tree tends to travel just underneath the bark.
