What characteristics of water is most to fish in a lake

D. water is able to hold dissolved oxygen

Explanation:

Dissolved oxygen (DO) can enter water by diffusing across the surface of water from the air, or as a byproduct of photosynthesis by other aquatic organisms like plants and algae. Each aquatic organism, like land-dwellers, has specific oxygen requirements. Fish use DO for the process of respiration, where they obtain oxygen from the surrounding water using their gills. Anoxic conditions, where oxygen levels are low usually result in significant deaths in fish populations.

a. by using fur or clothes to trap heat energy near the body

the three components of a nucleotide are the nitrogenous base, the phosphate group and the five-carbon sugar.