What causes the difference between different str alleles

Which statements describe incomplete dominance? traits are usually dominant. traits are neither dominant nor recessive. offspring exhibit an intermediate form of alleles from the parents. both alleles, one from each parent, are expressed in offspring. incomplete dominance involves the interaction of two alleles.

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important

(99 points) be serious! how do farts work? how do you fart without it stinking? serious answers only