Two pieces of cardboard one located at the bottom and one on top joint by card board with balls at the bottom and top all joint. hope you can picture that, it's rather confusing, sorry.
Hope this helps
If the heat is applied by open flame, the slow boil-off of alcohol vapor can burn off without exploding or igniting the leaf bath.
Answer:
to break down food
Explanation:
and also to absorb nutrients
Biotic factors are living things within an ecosystem; such as plants, animals, and bacteria, while abiotic are non-living components; such as water, soil and atmosphere.
So to answer your question,
Biotic: plants and other prey (animals)
Abiotic: water, soil,
Hope this helps!