Answer:
c . milk
Explanation:
Colloid are those whose particles are larger than the size of molecule.The size of particle is one nano meter.Collide particle range is between 1 to 1,000 nano meter. Every collide particle is consist of two parts colloidal particle and dispersion medium.
Milk is one of them.Collide are made form solid liquid and gas.
milk is the example of liquid collide.
Atoms, molecules, cell membranes, then cell (in order from smallest to biggest).
Answer:
pericardium
Explanation:
A double-walled membrane, the pericardium, separates the right and left chambers, preventing oxygen-rich blood from mixing up with the one without oxygen. So, the heart functions go smoothly. Deoxygenated blood enters the right atrium.
The answer is D. NADH to NAD+
When no oxygen is present, anaerobic respiration occurs.It is the only way to produce ATP in this condition.NAD+ is necessary because it is converted into NADH and at the same time ADP is converted to ATP in the reaction of pyruvate synthesis from glucose.Therefore, NADH must be converted to NAD+ in order to have NAD+ always present in the cell.
