Which describes speciation?
the grouping of a species
the extinction of an existing species
the adaptation of an extinct species
the formation of a new species

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

What is the average speed of a car that traveled 300.0 miles in 5.5 hours

Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food