Show the possible genotypes and phenotypes of the offspring from a cross between a heterozygous male with type A blood and a heterozygous female with type B blood.

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Explanation:

Heterozygous male with type blood A has the genotype of IA IO. Heterozygous female with blood type B has the genotype of IB IO.

Crossing IA IO × IB IO;

25% IA IB - blood type AB

25% IA IO - blood type A

25% IB IO - blood type B

25% IO IO - blood type O

D. Take many thousands of years to form

Explanation:

James Hutton discovered thin layers of sediments on his flooded farm and he concluded that strata was part of the earth surface in the past and thus takes many thousands of years to form.

This led to the principle of uniformitarianism which states that the geologic processes now are the same with the ones in the past.