Its skin so it protects the internal organs and systems
The experimental group is the group you change from the normal. the fertilizer group is experimental
I would say the alveoli. They are tiny air pockets in the lungs: this is where the diffusion of oxygen and carbon dioxide occurs.
Hope this helps! x
It is D. Sponges can move but not all, they are soft not hard so not B. They do not make food they absorb it so it D
Answer:
Stratosphere-characterized by strong,steady wind.Troposphere-responsible for earths weatherIntrusive Igneous Rocks-formed from magma cooling…Crust- made of mostly silicon dioxide Metamorphic rocks- formed when heat and pressure…
Explanation:
