Sample b is the control group because it’s the group not being tested and being kept the same.
Answer:
b) 50kg
Explanation:
You simply use F=ma equation, newtons second law
We are given: F=500N a=10m/s^2 m=?
1) lets change F=ma to help us find the m, we divide both sides with the a so we get 
2) plug in the F and the a,
, where 
3) plug it in ur calculator and you should get 50kg
hope this helped :)
Hello!
Both, the photosynthesis and respiration use ATP and are necessary for organism to sustain life.
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Explanation:
With few exceptions, cellular membranes — including plasma membranes and internal membranes — are made of glycerophospholipids, molecules composed of glycerol, a phosphate group, and two fatty acid chains. Glycerol is a three-carbon molecule that functions as the backbone of these membrane lipids.