Answer:
Facilitated diffusion takes place due to a difference in concentration on both sides of the membrane, in the direction of the lowest concentration, and does not require energy.
There are currently
22 active volcanoes in Luzon
428 in Visayas
and 20 in mindanao
Answer:
A frogs heart has 3 chambers. Two atria and a single ventricle.
It is described as relatively non specific
