This is cellulose,because humans lack enzymes to break it down
So when they have kids they don't pass down the disease
Answer:
You have to use certain materials, so that's a limitation
Explanation:
You have to use certain materials, so that's a limitation because you can't use every materials in the world. You have to use certain ones.
If there a too many producers but not enough secondary consumers, the ecosystem becomes unbalanced and the energy is unused. So the number needs to balanced for the ecosystem to be as well.
The sun heats up water on the earth which causes the water to evaporate thefore the hot water vapor rises up to higher altitudes where it's colder which causes condensation, without the sun this could never happen