Which of the following are found in DNA and RNA?

A. Phosphate groups, guanine, and cytosine

B. deoxyribose, phosphate groups, guanine

C. Phosphate groups, guanine, thymine

In what geological era did mammals expand on earth

Inheritance of mutant forms of some genes may lead to a predisposition to develop cancer. which of the genes listed below has not been linked to hereditary forms of cancer?

Use your knowledge of lipids to explain why desert plants need the waxy coating on their leaves to survive.

A 4.0-kilogram ball held 1.5 meters above the floor has joules of potential energy.

When is DNA replicated in a cell?

Salivation is controlled almost entirely by the nervous system. Which of the following stimuli would inhibit salivation? Hint 1. The sympathetic nervous system would be activated in this situation. 1) a lemon 2) nausea 3) the thought of food 4) fear

Which of the following best compares Aristotle's method of classifying organisms to Linnaeus's classification system?

Can twins have their own language

Parasympathetic tone ... Question options: 1) ... holds the resting heart rate below its intrinsic rate. 2) ... affects heart rate only after myocardial infarction ("heart attack"). 3) ... does not affect heart rate. 4) ...

Using an electron microscope, a scientist identified these cell structures in an unknown organism: mitochondrion, nucleus, cell wall, and chloroplast. What kind of organism did the scientist find?