<span>maintains a constant INTERNAL environment
so other options included internal variable and external environment. but its internal and environment</span>
The stomach can sometimes expires problem when digesting hard foods such as cheese and may result in things such as heart burn. an antacid can counter the ragging stomach acids.
Soy inglés. Solo hablo un poco de español, disculpe si la traducción es mala
1) Utilice botellas de agua reutilizables
2) No pongas químicos peligrosos por el desagüe
3) Reciclar aceite de motor
4) Reciclar plasticos
5) Reducir las emisiones de automóviles
6) Iniciar una pila de compost
7) Educar a las personas
8) Camina, no conduzcas
9) Deja de fumar
10) Reducir la deforestación
The ecosystem that would most likely have a very high net primary productivity is a tropical rain forest. This type of an ecosystem is characterized by constant temperature, high annual rainfall, nutrient-poor soil, and high levels of diversity. The level of humidity and density of the vegetation give the ecosystem a unique water and nutrient cycle.
