Respiration occurs A-With oxygen
B-Without oxygen
C-In Eukaryotic cells
D-None of the above
E-All of the Above

The large ground finch obtains food by cracking seeds. what is its short, strong beak an example? a) tendency toward perfection b) adaptation of a species over time c) selective use and disuse of an organ over time d) scarcity of recourses

Hector is back from his morning run and is feeling light-headed because his energy is depleted which food item will provide him with a quick source of carbohydrates

How does secondary succession differ from primary succession?