In addition to gravity, muscular waves, originating in the renal pelvis, squeeze urine down the ureters and squirt it into the bladder.

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom

Using meiosis, the sporophyte produces spores that are .

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