The diagram below shows the first four steps of meiosis. what is happening
in the step labeled b?
meiosis i
a
b
c
d
o
a. the chromosomes are copied and form tetrads.
o
b. spindle fibers are pulling the tetrads apart.
c. spindle fibers are moving the chromosomes to the center of the
cell.
o
d. mitotic spindles and spindle fibers are forming.

the dna of humans and mice is almost 92% similar. this similarity indicates that . mice have a tail, while humans have a tailbone. the tailbone is a structure in humans.yes it's true.

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.