If the male parent cell is heterozygous for a trait, tt, what alleles could the sperm cells possibly have?

Why are fossils not found in igneous rocks? igneous rocks are made from cooling of lava or magma. igneous rocks are found too deep underground. igneous rocks are too dark in color to contain fossils. igneous rocks are too dense to contain fossils.

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone

Which could be a pathway of food through an ecosystem