Which of the following accurately describes nutrient limitation?
a. if one essential nutrient within an ecosystem runs out, primary productivity will be limited.
b. soil environments aren't affected by nutrient limitation.
c. nitrogen is typically the limiting nutrient in freshwater environments.
d. limiting nutrients are the nutrients whose supply is in excess.

This organism is not capable of performing photosynthesis. (horseshoe crab) true false

Which of the following statements about c4 carbon fixation is not true? a c4 carbon fixation is an adaptation for plants exposed to high light intensityb. c4 carbon fixation occurs in more plants than c3 carbon fixation. c c4 carbon fixation is more common in areas of high temperatures than c3 carbon fixation. d. c4 carbon fixation occurs in the inner cells of a leaf rather than the entire leaf.

Question 1 of 102 pointswhich best describes adaptive radiation? oa. geographical isolation caused by an adaptationob. biodiversity resulting from few ancestorsoc. a decrease in the rate of speciationd. adaptations that organisms teach each other