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Peristalsis is the contractions of the smooth muscle lining the esophagus to help move the chyme down.

If you were a plant biologist studying a type of fruit that is derived from a single ovary, you would be studying which type of fruit?

Which one if the most significant cause of extinction?

Which muscle tissue is voluntary and moves bones?

Conservation biologists prefer to conserve areas that are biodiversity hot spots.  An example of a biodiversity hot spot is Madagascar.

If you were studying the type of circulatory system which has a heart that pumps blood within vessels only, you would be studying

The domestication of crops through artificial selection has a negative impact on biodiversity.  Ecologists observed corn crops that were wiped out by a pathogen while wild strains of corn were able to resist the pathogens.  This is an example of having

Which digestive or accessory organ is responsible for absorbing nutrients?

Which biome has reptiles doing very well but amphibians could not survive here?

One of the functions for ground tissue is to regulate gas exchange.