Answer:
Allows diffusion of sub...(true)
its found in both anim...(true)
produces en...(false)
It shows the atomic number
Answer:
I think it would it spider
Explanation:
Spider catch there meals in there web then suck the blood out after it wraps them up in webing

<em>Chemists use the mole unit to represent 6.022 × 10 23 things, whether the things are atoms of elements or molecules of compounds. This number, called Avogadro's number, is important because this number of atoms or molecules has the same mass in grams as one atom or molecule has in atomic mass units. </em>
hope helpful~
Answer:
one could be the weather.
phenotypes are physical characteristics of a person and there non genetic factors that play a role.
weather and environmental factors, your surroundings and orders related to the environment basically