Which of the following best describes a virus?

A. amino acids surrounded by chitin

B. DNA surrounded by RNA

C. a prokaryotic unicellular organism

D. nucleic acids surrounded by a protein coat

In this experiment, the blank was intentionally manipulated. This was the independent variable. The dependent variable measured was the blank

An electromagnetic wave traveling in a vacuum has a frequency of 5 x 10 Hz, Calculate the wavelength of this wave. The speed of light in a vacuum is c. a) 6,000,000m b) om c) 0.06m d) 0.6m

20 kg object travels 28 meter and stops. coefficient friction = 0.085 how much work was done by friction?

Can an object with constant acceleration reverse its direction of travel? can it reverse its direction twice? in each case, explain and give an example.

The relationship among force, mass, and acceleration is stated in ___ A. The law of conversation of momentum B. Newton's first law of motion C. Newton's second law of motion D. Newton's third law of motion

Which organization functions to privide clinics and surgeries i developing nations

What role do convection currents play in oceans and the atmosphere?

What causes density currents to form in the mediterranean sea? a. condensation b. evaporation c. transpiration d. upwelling

How long does it take a car to travel 450 km at 75 km/hr

A free-falling golf ball strikes the ground and exerts a force on it