What does "biodiversity" refers to ?
only the diversity of species
only the genetic diversity in humans
the diversity of ecosystem, climate and culture
the diversity of species, ecosystem and genes ( correct)

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

Compare the two theories regarding the evolution of dinosaurs and then consider the cladogram above. although the two theories differ on the evolutionary path of dinosaurs, they agree that

An organism is found that has the following traits: • has a backbone • has lungs • can reproduce on land what kingdom does this organism most likely belong in? a. animalia b. plantae c. prostisa d. fungi