Which cells in the immune system identify pathogens and distinguish one pathogen from another?

T cells

phagocytes

B cells

red blood cells

What is the difference between mass and weight in Physical Science?

Where would you most likely find an electrostatic precipitator being used?

Two particles carrying charges q1 and q2 are separated by a distance r and exert an electric force F⃗ E on each other.

The speed of a wave depends upon: A. The wavelength of the wave B. The amplitude of the wave C. None of the above D. The property of the medium through which the wave is traveling

A 100-m^3 open tank contains water 3 m deep. A. What is the pressure on the water at the bottom of the tank, relative to atmospheric pressure? B.

What happens when you shoot a bullet into the sky?

If you want to lift a 5-kg box to a height of 2 meters, how much work must be done? O A. 2J O B. 50 J O C. 98 J O D. 100

A diver initially moving horizontally with speed v dives dives offthe edge of a vertical cliff and lands in the water a distance dfrom the base of the cliff.

What is the Isotope notation for a Lithium atom?

Which best describes the direction of heat?