Nitrogenous base that occurs in RNA but not in DNA

(A) Deoxyribose

(B) Ribose

(C) Uracil

(D) Cytosine

(E) Thymine

What is the problem with blowing up large asteroids?

What goes into the photosystems and what comes out of the systems. where will these products go?

Two fruit flies, one with red eyes and one with white eyes mate and have an offspring with white eyes. having red eyes is a dominant trait (r) while white eyes (w) is recessive.

Unlike other animals, mammals can perspire. The main benefit of perspiring is that it -

Which of these labels for fossils in a museum display contains an error? A. Early human (late Cenozoic) B. Early mammals (late Triassic) C. Dinosaur (Mesozoic) D. Early Echinoderms (Cambrian Period)

Are A chromosome and chromatid are the same thing.

What do you call the part of the body that switches between the lungs and the esophagus?

What is the symbiotic relationship between hookworms and humans?

Which statements describe how the body maintains homeostasis on a hot day? Check all that apply. The nervous system and the muscular system work together. The muscular system and skeletal system work together.

Through cell respiration, plants get energy from glucose. the energy stored in glucose originally came from