Membranes are barriers and “gatekeepers”, they only let certain molecules pass through them.
they also transport nutrients to the cell
Answer:
You are the Cobalt
Explanation:
The least massive metalloid in the fourth period is Germanium, and it have 32 protons. If you have 5 less protons: 32 - 5 = 27 protons. The element with 27 protons is Cobalt
Crush the limestone... it would give more area for the acid to react
Answer/Explanation
am not sure but I think its
Standard temperature = 273K
2.50 LTemperature
