The continents began to drift apart by the end of the period.
a. permian
b. neogene
c. cambrian
d. cretaceous

Chalk is an ionic compound. which is a property of all ionic compounds that makes chalkboard? particularly useful for writing on a a high melting point hardness and brittleness inability to dissolve in water a multicolored appearance

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species

What is the term for the two sets of chromatids formed in the parent cell a.haploid b.diploid c.gamete d.tetrad