Answer:
-lack of food in the area
-more predators
-envirment changes
-over population
Explanation:
Internal means its on the inside
external means its on the outside
so an internal regulator is when the proteins respond to events on the inside of a cell
and an external regulator is when the proteins respond to events outside the cell
Answer:
percolation evaporation condensation and precipitation
Explanation:
The growth or tuning of plant root toward or away from moisture
