Which adaptation is likely to increase the chances of survival of an animal in hot arid climates?

Any or all of these types of adaptations play a very important role in the survival of an animal. And in hot climate the body part is one of the critical role example of this is camel. Body parts, bod coverings and bahaviors are the three characteristics main categories. 

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides