1. Explain why species that overlap a great deal in their fundamental niches have a high probability of competing. Now explain why species that overlap a great deal in their realized niches and live in the same area, probably do not compete significantly.

Explanation:

The fundamental niche is the set of conditions in which organisms are required to survive and reproduce themselves. The realized niche is the set of conditions which organisms actually use as a preference after interaction with other species.  

In the fundamental niche the organisms blend with the environment for example, if there are few resources available for survival, the members of the distinct species are likely to compete for those resources.

In the realized niche the organisms, if suffering from lack of resources, they may switch to another niche to prevent suffering and competition with other species. For example, they may change the food preference, or habitat.  

The question are Incomplete but the options are gotten from another website

A. The body cells will swell because an increase in temperature promotes greater water absorption.

B.The body cells will stop absorbing nutrients because the heat melts the lipid bilayer of the plasma membrane.

C. The body cells will shrivel because the heat eliminates the chemical gradients on either side of the plasma membrane.

D. The body cells will bring in fewer nutrient molecules because the transport proteins lose their proper shape due to the high temperature.

The correct option is D.

The body cells will bring in fewer nutrient molecules because the transport proteins lose their proper shape due to the high temperature.

Explanation:

This is because high fever is a health condition that lead to increase in body temperature above it's normal. The body cells are able to absorb nutrients at a particular temperature through transport protein but when there is increase in body temperature, the transport protein will be affected by the temperature because they are sensitive to high heat, and they will lose shape. Once they loose shape, their ability to transport nutrients to body cells will reduce drastically.