Explain why species richness declines along an equatorial-polar gradient

What is the carbohydrate formed in photosynthesis?

List three abiotic factors that can determine an ecosystem?

Organisms need to conduct essential life activities

Identify the type of symbiosis described. The brown-headed cowbirds lay eggs in otherbirds' nests. They trick the birds into raising their young. The cowbirds hatch first and push the eggs out of the nest.

What correctly describes the relationship between the Earth and the Sun

What would happen to the enzymes activity if denaturation occured

Blood clots form using which of the following components? Check all that apply. fibrin platelets blood clotting factors blood cells

Marys mother bought some beautiful blue flowering plants. she took very good care of the plants. she watered them, fertilized them regularly, and added lime to the soil to raise the pH from acidic to basic.

Which is an example of a behavioral adaptation? Birds migrating in the winter a ducks's webbed feet a polar bears thick fur a gazelle's ability to run fast

Which of the following is a synapomorphy linking dinosaurs and birds? a. Loss of teeth b. Furcula c. Small size d. Endothermy