A species of fish evolved over thousands of years to have gills that allowed the fish to swim deep in the sea. What’s the effect of this development on deep-water resources? The fish developed the gills because of . Because the fish are now able to swim in deep water, their in shallower water will have less food. Likewise, competition for food among deep-water fish that eat the same types of food will .

A species of fish evolved over thousands of years to have gills that allowed the fish to swim deep in the sea. What’s the effect of this development on deep-water resources?

The fish developed the gills because of  

genetic modification

. Because the fish are now able to swim in deep water, their  

predators

in shallower water will have less food. Likewise, competition for food among deep-water fish that eat the same types of food will  

decrease

.

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.