If one strand of dna had a base sequence of a-t-t-g-c-a, what base order would be found on the complementary strand of dna?

The complementary base order would be T-A-A-C-G-T.

Explanation:

Guanine (G), Adenine (A), Thymine (T) and Cytosine (C) are the nitrogenous bases of DNA. They can be found throughout the DNA molecule, as it is the constitution of their strands. These bases are complementary to each other and allow the strands of DNA to be held together by the complementarity between them. This is because A binds with T and G binds with C. Therefore, if a DNA strand had an A-T-T-G-C-A base sequence, it would have a complementary base order of T-A-A-C-G-T.

"a scientist studying a whale and its surroundings would need to understand the structure of atoms in case something was negatively affecting the whale or its surroundings."

explanation:

this was from the link provided:

as the gila monster consumes the eggs or young of the desert cottontail and gambel's quail, thus its main food supply is only accessible for a restricted time duration every year. however, for this, the gila monsters exhibit three adaptations, which elevate their survival rate in the desert condition.  

first, is that they possess huge bodies, and can consume greater concentrations of food during a small period. secondly, they require to feed infrequently as they can accumulate fat in their tails. ultimately, their rate of metabolism is very low, so that they can burn their reservoirs of fat gradually.