Answer:
C- a duck catching and eating a snail
Explanation:
Biotic factors involve living things. The only choice with two living beings interacts would be C.
Answer:
the decrease in biodiversity may cause a significant reduction in productivity of the ecosystem. The loss of biodiversity means genetic variation are lost and overall genetic pool reduces.
The bacteria transform nitrogen into useful forms for the plants; the plants provide carbohydrates.
Transfer of a phosphate from atp to glucose is endergonic.
Demonstrate how to use the balance that students will be using to measure the mass of the cube. Record the mass of the cube in grams (g). Show students how to calculate density<span> by dividing the mass by the volume. Point out that the answer will be in grams per cubic centimeter (g/cm</span>3<span>).</span>