External respiration (correct answer) involves the exchange of oxygen and carbon dioxide within the environment.
The exchange of wastes through the skin is just called excretion by sweating.
There is no exchange of nutrients that occur in the lungs but rather absorption of nutrients is the function of the gastrointestinal tract.
The exchange of oxygen and carbon dioxide within the cell is called cellular respiration and involves carrying oxygen from the blood to the cell then the cell uses it as the final electron acceptor in the electron transport chain. The metabolic wastes of the cell, primarily carbon dioxide, goes now to the bloodstream to be exchanged for oxygen in the lungs.
Stand on two feet, walk in a straight line and be careful to not trip/step on anything that could make me lose my balance
Because dna won't bond corectly
Answer:
C
Explanation:
Aggressive behaviour is a act of violence not without it
Answer:
Look at the picture below!!!
Explanation:
