What is one type of white blood cell that participates in the specific immune response called?

A.

antigens

B.

antibodies

C.

macrophages

D.

pathogens

An experiment was conducted in which many pieces of data were collected. Considering all of the data, the limiting number of significant figures in the experiment was 3 significant figures.

6.9 is how many kilometers

Which of the following correctly shows the four most abundant gases in the Earth's atmosphere in order from most abundant to least abundant? A. oxygen, nitrogen, argon, carbon dioxide B. nitrogen, oxygen, argon, carbon dioxide C.

The distance from the sun to Earth would be Which phrase best completes the sentence? O exactly one light year O any number of light years more than one light year o less than one light year

Which of the following is most likely to have a volume of 75 cm³? A. a stereo system B. a laptop computer C. a portable mp3 player D. a plasma screen television

What are the arrangement of resistors in series

A cell provides 6 V to an LDR. The current through this LDR is measured and is found to be 3 A. What is the resistance of the LDR?

A car travels along eastward with a constant velocity. the magnitude of the acceleration of the car is

What is the weight of a 65 kg astronaut on mars?

When lava cools, what type of Rock forms?