Question

question 3 (1 point)
pi in the shannon diversity index formula represents
number of individuals of a species found in a community
proportion of individuals found in each species
evenness of species found in an environment
richness of a habitat
question 4 (1 point)
shannon diversity values are useful for
comparing habitats with different characteristics
protecting a single endangered species
observing species interactions
determining the structure of a food web

Explanation:

For Question 3, in the Shannon Diversity Index formula, $P_i$ represents the proportion of individuals of the $i$-th species in the community. For Question 4, Shannon diversity values help in comparing habitats as they measure the diversity within a community, which can be used to contrast different habitats.

Answer:

Question 3: Proportion of individuals found in each species
Question 4: Comparing habitats with different characteristics