Jessa is a medical research assistant. She is examining antibodies under a microscope. She has to categorize each type of antibody based on their functions. Which type of antibody is responsible for each of the following functions? IgE
IgA
IgM
IgD

1. prevents bacteria and viruses from entering the body
2. is responsible for identifying antigens and
producing antibodies to fight the foreign substance
3.is the front line of defense when fighting
bacteria or viral antigens
4. releases histamine during an allergic reaction

Plz mark brainliest 30 points 1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s. 2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?

Which statement can best be concluded from the ideal gas law?

An atomic nucleus is composed ofa)protons. b)protons and neutrons. c)protons and electrons. d)protons, neutrons, and electrons.