How many neutrons does a calcium atom have

The kind of fertilization found in the majority of aquatic animals is (internal or external) fertilization.

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?

Select the correct answer. what does the hardy-weinberg principle relate to? a. chances of survival of an organism b. frequency of alleles in a population c. natural selection in a species d. causes of evolution among organisms