Samantha’s job involves studying ecosystems and their components. specifically, she deals with the population and growth of the organisms in the ecosystem. what’s samantha’s profession?
1. conservationist
2. entomologist
3. population ecologist
4. veterinarian

Prior to the development of dna fingerprinting, blood type could be used to determine possible parentage. although it might prove someone was not a parent, it could not show if someone was positively the parent, only that he or she might be a parent. which of the following is a true statement that can be made about parentage based on blood typing?

What is the primary goal of human communities?

Are the earth's ocean floor and continents the same age geologically? why or why not?