Elk and bison are both herbivores and engage in exploitative resource competition. Which of the following could be explanations (reasonable hypotheses) as to why both species persist in Yellowstone rather than one of the two species being extirpated due to competitive exclusion.

Use the food web shown in the previous question to help with your answer.

Select all that apply:
a. Competitive exclusion does not occur for two species that share the same trophic level.
b. One of the two species has a much higher ecological efficiency than the other, making competitive exclusion less likely.
c. Their fundamental niches do not completely overlap.
d. Both species are kept well below their carrying capacities by predators.
e. Both species are K-strategists and hence unlikely to be affected by resource competition and competitive exclusion.

What does it mean for a cell membrane to be selectively permable

Consider the motion of the balloon and its air contents in terms of momentum. in step 1 above, the total momentum of the balloon and its contents was zero. recall that momentum = mv. both the balloon and the air inside it had a velocity of zero and therefore the total momentum was zero. now think about what happened when the air escaped from the balloon. a certain mass of air accelerated in one direction. in order to keep the total momentum of the system zero, the balloon itself (which has mass) had to accelerate in the opposite direction. use this scenario to you explain why the soda can rotates when the water squirts out of the escape holes. what was your hypothesis concerning the water-filled can? according to your data, do you think your hypothesis was correct? (be sure to refer to your data when answering this question.) summarize any difficulties or problems you had in performing the experiment that might have affected the results. describe how you might change the procedure to avoid these problems. give at least one more example of newton's third law in everyday life.

Agenus is a taxonomic grouping that identifies a collection of species. when a scientist discovers a new species, how is this species assigned to a genus