(HELP A. S.A. P I REALLY NEED IT)What is the difference between DNA and RNA?
A. RNA is a more complex molecule than DNA
B. RNA contains genetic information; DNA does not
C. DNA is a more complex molecule than RNA
D. DNA contains genetic information, RNA does not

Freckles are a dominant trait in humans. both of the girls have the genotype ff for freckles. if either one marries a man with no freckles, what are the chances that their children will have freckles?

What is usually (but not always) related to the metabolic processes of living organisms in its organic form?

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.