Mannitol is a drug that temporarily disrupts tight junctions. this drug is often added to medications that need to get into the extra-cellular fluid of the brain because it will make the capillaries of the more permeable to larger molecules.

Match the following terms and definitions. 1. species that are adapted to live in equilibrium at carrying capacity population density 2. population growth that reaches equilibrium and carrying capacity population 3. death rate mortality 4. birth rate k-selected 5. a group of interacting individuals of the same species within the same geographic area natality 6. the number of organisms living in a particular area logistic growth