Which DNA base is referred to as a wild card due to its ability to change into one of the other bases? (WILL REWARD)

a. Cytosine

b. Guanine

c. Uracil

One statements is an example of a scientific observation. another statement is an example of a scientific explanation. identify the correct statement for each category to illustrate how scientific explanations are inferred from scientific observations.

Use the drop-down menu to match the following definitions to the corresponding terms. the total variety of organisms that live in the biosphere a group of organisms that breed and produce offspring that can breed all of the biotic and abiotic factors in an area

What field of science did harry hess study?