What is the function of an antibody in an antigen-antibody response?
a.
to ingest and digest the antigen
b.
to remove the dna of the antigen
c.
to enclose the antigen in a protective shell
d.
to immune cells identify and destroy a pathogen
c?

Which one of the following research methods can show cause and effect

Uranium has two naturally occurring isotopes. 238u has a natural abundance of 99.3% and 235u has an abundance of 0.7%. it is the rarer 235u that is needed for nuclear reactors. the isotopes are separated by forming uranium hexafluoride uf6, which is a gas, then allowing it to diffuse through a series of porous membranes. 235uf6 has a slightly larger rms speed than 238uf6 and diffuses slightly faster. many repetitions of this procedure gradually separate the two isotopes. what is the ratio of the rms speed of 235uf6 to that of 238uf6? express your answer to five significant figures.

Which is the most accurate name for the covalent compound p2o3?