Explain the difference in base pairing between dna and rna.

What statement best describes the kinds of questions science can answer

What do maned geese depend on for survival

An increase in the amount of carbon dioxide in the blood stimulates the respiratory center of the brain.

The permafrost (frozen soil) is the reason that plants have? Shallow roots Long roots Deep roots Long stems

What would be the best way of communicating number-based data?

Select all that apply. Which of the following characteristics must an object possess in order to be considered alive?

Regarding regulation of the ara operon, what would be the effect of a mutation that removes the part of the AraC protein that binds to RNA Polymerase? a. Transcription would not occur at high levels in either the presence or absence of arabinose. b.

Cnidaria and flatworms exchange gases and remove wastes by way of their: A) open circulatory systems. B) closed circulatory systems. C) gastrovascular cavities. D) moist skin surfaces. E) respiratory and excretory systems.

Immunofluorescence microscopy A. Can be used to map the location of specific macromolecules in cells. B. Can be performed with a standard light microscope. C. Can yield resolution approaching that of the electron microscope. D.

Which statements describe functions of antibodies? Check all that apply. They maintain the cell's shape. They regulate cell processes. They protect the body from infectious agents. They signal the immune system to destroy pathogens.