What do we call the substances that are created when elements bond
together in predictable, fixed ratios?
A. Compounds
B. Mixtures

How does land development destroy ecosystems? it increases human carrying capacity too rapidly. it converts them into residential or agricultural areas. it forces humans to import non-native plants and animals. it expands the natural range of native wildlife species.

Models are non-visual ways of coummincating how someone thinks about something in the natural world

According to the cladogram, which organisms have roundworms as a common ancestor?