Which is a major threat to biodiversity?
a. yucca moths pollinate and feed on yucca plants in the mojave desert.
b. non-native kudzu out-compete native plants in the eastern united states.
c. poison from the poison dart frog of the tropical andes may be used to create effective medicines that fight certain human diseases.
d. acacia trees of central and south america provide shelter for stinging ants, while the stinging ants remove fungal spores from the trees.

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.

Which of the following is a difference between active transport and facilitated diffusion? view available hint(s)which of the following is a difference between active transport and facilitated diffusion? facilitated diffusion can move solutes against a concentration gradient, and active transport cannot.active transport involves transport proteins, and facilitated diffusion does not.facilitated diffusion involves transport proteins, and active transport does not.active transport requires the expenditure of cellular energy, and facilitated diffusion does not.

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm