Which of the following factors does not influence species richness and diversity?
a. competition
b. resource availability
c. amount of primary production
d. habitat heterogeneity
e. number of trophic levels

c. Amount of primary production

Explanation:

Primary production refers to the amount of energy that is converted by organisms from the sun. That is, the primary production is understood as the efficiency of the conversion of energy to organic substances, from the reaction of autotrophic organisms, by solar or chemical energy.

With this concept we can conclude that primary production does not influence the richness and diversity of species, but rather influences the activity of an ecosystem that corresponds to the total amount of organic matter produced in grams over a certain environmental area.

b is the correct answer