4. osmosis scenario: fluid movement into the brain
after traumatic brain injury can result in dangerous brain
swelling.
ed
one treatment that can be used in some of these cases is
adding a
_ saline
amoeba sisters

vascular tissue transports materials from the environment into the plant.

genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).