Which type of diversity refers to the sum total of all the different forms of genetic information carried by all the organisms living on Earth today

What occurs when a species disappears from all or part of its range?

What do we call a species whose population is declining in a way that places it in danger of becoming extinct?

As a population decreases in numbers it ____________ genetic diversity which makes the species even more vulnerable to extinction

What is one of the most serious threats to biodiversity?

What is DDT?

What term is used to describe when concentrations of a harmful substance increase in organisms at higher trophic levels in a food chain or food web

Which trophic levels are at the highest risk because of biological magnification?

What term described a species of plant or animal that has migrated to an area where they are not native?