Most appropriate answer is D !As vessels dialates the velocity of the blood flow decreases !
So both C and D is appropriate! But I will suggest D !
Answer:
Active transport: movement against a gradient To move substances against a concentration or electrochemical gradient, a cell must use energy. Active transport mechanisms do just this, expending energy (often in the form of ATP) to maintain the proper concentrations of ions and molecules in living cells.
<span>Essential part of the maculae involved in static equilibrium is otoliths. The otolith organs sense gravity and linear acceleration such as from due to initiation of movement in a straight line. Persons or animals without otolith organs are imbalanced. The otolithic organs sense motion according to their orientation.</span>
The focea centralis functions to promote daytime vision, being the site of concentrated photoreceptors called cone cells.
