Sophia - Environmental Science - Unit 2 Challenge 3.

Sophia - Environmental Science - Unit 2 Challenge 3. 1 — Photosynthesis and the Carbon Cycle Determine how carbon is cycled between plants and animals. How is carbon cycled between plants and animals? • a.) Dying organisms consume oil and coal. • b.) An animal eats a plant, then absorbs and exhales the carbon, which is then absorbed by other plants during photosynthesis. • c.) Plants use oxygen combined with sugar, to create water and carbon in order to grow. • d.) Plants release carbon in the form of a gas called carbon dioxide. 2 — Water and Nitrogen Cycles Recognize key aspects of the nitrogen cycle. __________ is an atmospheric gas that is an important biological compound, but it must be fixed to be usable by life forms. Microorganisms that can do this are housed in the __________ of certain plants, such as clover and peanuts. • a.) Carbon dioxide; seeds • b.) Nitrogen; roots • c.) Nitrogen; stems • d.) Carbon dioxide; leaves 3 — The Role of Individual Species Differentiate between the intrinsic value of a species and the value for the ecosystem services it provides. Species can be valued for their ecosystem services or intrinsic value. Which of the following statements values species for their intrinsic value? • a.) An elementary school class takes a field trip to a pond to study its