Answer:
All planets have a circular orbit with the sun at the center
I believe the answer is B, primary active transport. Root hair cells in plant use active transport to absorb mineral ions such as nitrates from the soil. The concentrations of minerals in the soil are lower in the soil than in within the root hair cell, therefore the transport will be against the concentration gradient which does not favor diffusion, therefore the pant has to use active transport.
Answer:

Explanation:
Given that:

For a continuous centrifuge ; solid recovery R ∝ 
where;
ω = angular velocity of the centrifuge in rpm
Q = flow rate
SO;


÷ 



Hi I do not know I'm not in that grade
Most people think we can fix climate change but we can if we cut down on carbon monoxide release by making our cars more efficant we can help control climate change