Which is not a property of magnetic field lines?

a.
they form complete loops from pole to pole.
b.
they can be directly observed.
c.
they never cross.
d.
they spread out as they get farther from the magnet.

Which part of the neuron below is indicated by the arrow, and what is its function? hormones send chemical signals throughout the body to regulate other body processes. hormones are chemical signals that are sent throughout the body to regulate other body processes. hormones send electrical signals throughout the body to regulate other body processes. hormones are electrical signals that are sent throughout the body to regulate other body processes.

Anormal strand of dna is shown below, followed by the same strand of dna after mutations have occurred.

Which of the following molecules will diffuse most quickly across a lipid bilayer membrane? a. h2o b. o2 c. h2po4 d. glucose e. na+