is the degree of variation of life forms within a given ecosystem, a species, or an entire planet.
A. Biodiversity
B. Ecology
C. Etymology
D. None of the above

Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error?

At which location in earth’s interior does the top density continue to increase as thickness decreases?

Advances in technology have enabled scientists and researchers to better study the evolutionary relationships between species