Which statement best describes how a B-cell works?

It produces antigens, which stimulate a fever.
It produces antibodies specific to an antigen.
It produces antigens specific to antibodies.
It produces antibodies, which stimulate a fever.

Which of the following statements is true of enzymes? a)they dont provide an active site for substrates to bind in a reaction b)they act on a specific type of substrate in a reaction c)they unusable after a reaction d)they change shape after a reaction

Complete the possible outcomes for each generation in the pedigree chartaa aa aa

Suppose a suitcase has a mass of (m) 30 kg and a net force (n) of 10 kg*m/s. what is the acceleration rate of the suitcasein m/s? show your work to support your answer