1. The shrubs and plants in this ecosystem most depend on what abiotic factor for survival?
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1 point
A. Rocks on which to grow
B. Mammals to provide nutrients
C. Carbon dioxide from the air
D. Microorganisms for decomposition
2. Which statement best explains the answer to question 1?
*
1 point
A. Gases in the air are critical the process of photosynthesis.
B. Plants rely on animals for the nutrition they need.
C. Rocks are an ideal habitat for plants in an aquatic environment.
D. Nutrients from decomposition drive photosynthesis in plants.
1. A. Rocks on which to grow
2. A. Gases in the air are critical to the process of photosynthesis.