Determine the limiting factors that might exist in the example ecosystems below. 1.

A community of mussels, starfish, and algae exist in a small tide pool

2.

An oasis thrives around a small spring-fed pool in the middle of a desert

3. A population of elk is reproducing rapidly in a section of forest due to the absence of any predators

Which element provides strength to the exoskeleton of clams and oysters

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.

What would be the result if crossing over did not happen during meiosis in humans? a. there would be less genetic variation in humans. b. parents would be more likely to look like their children. c. the human population could not reproduce. d. children would have more chromosomes.