Which of the following describes a biotic factor of an ecosystem interacting with an abiotic factor in the ecosystem? A. A child lying on the grass
B. A duck diving into a lake
C. A raindrop falling onto the ground
D. A puddle evaporating due to the heat

4. how does a phospholipid behave in water? the phosphate head does not mix with water; the fatty acid tails do. the phosphate head and the fatty acid tails mix with water. the phosphate head and the fatty acid tails do not mix with water. the phosphate head mixes with water; the fatty acid tails do not.

What is the importantence of the carbon and nitretan cycles in the environment

When you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?