How do the cells in a fish react when moving from saltwater to freshwater?
a. the cell fills with water
b. the cell fills with salt
c. the cell forms stem cells
d. the cell uses exocytosis

The terrestrial planets are characterized by having a a.) silicate core b.) iron-rich silicate core c.) iron-rich metallic core d.) none of these

Johnny rode his bike 4 blicks down the street to his friend's house once he got to his friend house and realized he could not cone out to play he turned aroubd and went back home.what is displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

This is an active transport mechanism by which cells pump sodium and potassium ions against the concentration gradient