Which of the following best describes the interaction between Earth’s crust and living organisms?
a.
Raw materials essential for life are cycled through Earth’s crust.
b.
Fossil fuels are a valuable energy source for the biosphere.
c.
The continental crust allowed the evolution of life on land.
d.
The crust recycles the organic materials in sedimentary rock.

Kara has a plant that produces either purple or white flowers. she crosses a plant that has two recessive alleles for white flowers with a plant that has two dominant alleles for purple flowers. which result would be true of all of the offspring? a) all of the offspring would have two recessive alleles and white flowers. b) all of the offspring would have two dominant alleles and purple flowers. c) all of the offspring would have one recessive allele, one dominant allele, and white flowers. d) all of the offspring would have one recessive allele, one dominant allele, and purple flowers