Which of the following sample types did scientists use to study climate over time a. fossils b. tree rings c. all the above d. ice cores e. soil cores

Explain how the number of similarities between the embryos from early stage to late stage is used as evidence of a common ancestry

Why did mendel use pea plants in his experiments? a. they have no alleles. b. they are haploid organisms. c. they reproduce quickly. d. they are all male.

Awolf pack hunts,kills, and feeds on a moose. in this interactions, the moose is a?