Question

question 3 (5 points)
listen
why are there many niches of species in one mountain?
a) the leeward and wayward sides of the mountain have different elevations.
b) the biotic factors on the mountain force interspecific competition.
c) the elevation changes of the mountain cause different climates.
d) theres no water on the top of a mountain to support life.
question 4 (5 points)
listen
how do scientists recognize that a climax community has been reached?
a) succession is completed, and the community is stable.
b) the environment is unable to cause changes to that community.
c) the population of a community is continually increasing in size or scope.
d) no more natural resources are available to support the community.

Explanation:

For Question 3: Different elevations on a mountain lead to different climates such as temperature and precipitation changes. These different climates create various habitats or niches for species. The leeward and windward sides usually have different weather - related factors rather than just elevation differences (A is wrong). Biotic factors causing interspecific competition doesn't directly explain the formation of many niches (B is wrong). There can be life on mountain tops with water sources available (D is wrong).
For Question 4: A climax community is the final stage of ecological succession where the community has reached a stable state and succession is considered complete. The environment can still cause changes to a climax community (B is wrong). In a climax community, the population is stable, not continuously increasing (C is wrong). Natural resources are still present in a climax - community (D is wrong).

Answer:

Question 3: C. The elevation changes of the mountain cause different climates.
Question 4: A. Succession is completed, and the community is stable.