D.
They break down dead organisms.
A scientific model can be used to test a hypothesis.
The most appropriate action that you should take after
finding out the unconscious couple in the bed with the smell of the natural gas
is to quickly remove the couple from their home with the use of the clothes or
blanket to cover them with.
The correct answer is precipitation.
Heritability describes a proportion of difference among people that is attributed to genetics.
Heritability is the static used in breeding and genetic works and generally, it is the ratio of variation due to the differences between genotypes to the total phenotypic variation for a character in a population