Gravity is the force by which a planet or other body draws objects toward its center. the force of gravity keeps all of the planets in orbit around the sun. what does the force of gravity depend on?

Which statement best describes a keystone species? o a. it has littlelmenetic variation. it has an extremely high population. 0 b. 0 c. it remains unaffected by all environmental changes. od. it has a strong influence on the ecosystem. 0 e. it's the first species to populate a new ecosystem.

The current thought on the structure of the cell membrane is: a. a static phosphate sandwich of lipids b. a fluid-mosaic of phospholipids and proteins c. a bilayer of proteins with static lipid molecules d. an impermeable bilayer of protein molecules e. a static and permeable phospholipid single layer

About how many years does it take for one cycle of surface water to become deep water and then surface water again in the oceans? 101001,000