to determine whether traits can be inherited independently
Explanation:
the use of dihybrid crosses allowed him to discover the law of independent assortment / discovering that each locus had 2 alleles which segregate during the creation of gametes.
Answer:
Animals needs oxygen's to survive and plants need carbon dioxide to survive. The ozone layer reflects harmful UV rays from the sun to protect the things living on Earth.
That’s a dependable variable because it’s relying on something else.
Inner planets are all of the planets inside the asteroid belt, so that would be Mercury, Earth, Venus, and Mars.