Answer:
Household biology is the study of household animals,insects,etc.,including how to prevent damage to our own body and to our belongings
I think it’s C
Hope that helped
Answer:
A decomposer is found at the end of a food chain.
I believe it's oxygenated or oxygen rich blood away from the heart.
Answer:
Natural selection can be described as a phenomenon in which individuals of a population which are better adapted to survive in an environment are favored by nature as compared to the individuals of the population which lack better characteristics to survive in the environment.
Through natural selection, evolution occurs and the allelic frequency changes over a period of time. The process of evolution as well as change in the allelic frequencies does not occur just by a single individual, rather it is a collective effort which takes a lot of time. Hence, we say that natural selection changes the population and not a single individual.