An individual who has had chicken pox rarely gets this

disease again. This situation is an example of

1) biological control. 3) active immunity

2) negative feedback 4) passive immunity

How to use proton, neutron, and isotope in a sentence

When you rub a glass rod with silk. The rod becomes positive charged, and the silk becomes negative. Also when you rub a rubber rod with fur, the rubber rod becomes negative and the fur becomes positively charge. Question:1.

What types of friction occur when you ride a bike through a puddle

A man pulls on his dog's leash to keep him from running after a bicycle. Which term best describes this example? negative work positive work negative force positive force

A ball is dropped off the side of a bridge after falling 1.55 s, what is the initial velocity

Why would a long series of gradual ramps be better than one short, steep ramp for moving heavy blocks of stone?

Why are some liquids more viscous than others?

If a person weighs 125 lbs, 8oz., how many mg does s/he weigh

An iron rod is: A:a good conductor of heat and electricity, but not magnetic B: magnetic and a good conductor of heat, but is an insulator of electricity C: magnetic and a good conductor of heat and electricity D: not magnetic and an insulator of

Which stage are there homologous chromosomes lines up down the middle of the cell