Help it’s a test giving brainleist and like please fast

5. inherited

6. Rr

7. heterozygous is when the genotype has both a dominant allele and a recessive allele.

Im kinda confused on #6 but thats what i got.

hope this helps.

the element that provides strength to the exoskeletons of clams and oysters is phosphorus. this is so because calcium carbonate is the main component in the shells.

explanation:

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.