Unlike freshwater fish, saltwater fish
a. often contain a lower concentration of salt than the water they live in.
b. tend to gain water from their surroundings.
c. would swell if they didn't conserve water.
d. would swell if they didn't eliminate salt.

Arrange these elements of the intrinsic conduction system in the order that a depolarizing impulse travels during a normal heartbeat. rank from first to last. do not overlap any tiles. view available hint(s) reset av nodeav bundleinternodal pathwaysbundle branchessa nodepurkinje fibers

What advantage does a crop that undergoes vegetative reproduction have over plants that start from the seed? 1points a they store nutrients. b they can travel farther. c they experience more genetic variation. d they only occur in high-resource environments.

What is the difference between a scientific hypotheses and a scientific theory?