While studying the DNA of organisms within a single species, Erwin Chargaff discovered that the amount of adenine is about equal to the amount of thymine. Which of these explains why the ratio of adenine to thymine is nearly 1:1? a) Adenine and thymine pair with each other.
b) Adenine binds with phosphates, while thymine binds with nitrates.
c) Adenine and thymine are identical in chemical composition
d) Adenine bases contain a form of thymine.

In the practice of science, this type of reasoning is used to develop explanations.

Which benefit of the community experience when its members have a hide level of health literacy

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.