Giovanni sprinkled iron filings around a magnet. Which of the following did Giovanni most likely see?
Group of answer choices

The iron filings randomly falling around the magnet

The iron filings spread evenly around the magnet.

The iron filings lining up with the magnetic field lines

The iron filings accumulating only at the poles of the magnet

Describe five factors that influence the value of fuel

What is the relationship between absorbance of light and the rate of photosynthesis?

Which is an advantage of having memory cells when a pathogen is encountered for a second time. a) the memory cells are what proliferate into clones of cells in response to the binding of an antigen. b) memory cells are vital to the primary immune response in that they immediately recognize pathogens even at the first encounter. c) memory cells are essentially effector cells that are short lived and attack antigens even without having a receptor specific to that antigen. d) it ensures that more lymphocytes with a receptor specific to a particular antigen will be present than in a host that had never encountered that pathogen.