Which best describes bio geographic isolation? A-It always leads to the formation of new species
B- it cannot lead to evolution
C- it is a mechanism for evolution
D- it occurs only through geographic forces

Weights of golden retriever dogs are normally distributed. samples of weights of golden retriever dogs, each of size nequals15, are randomly collected and the sample means are found. is it correct to conclude that the sample means cannot be treated as being from a normal distribution because the sample size is too small? explain.

What is called the "building block" of life?

List two modern organisms that have pentameral symmetry