Answer:
B. CO2 out
Explanation:
The excretion is the process of removal of the waste product from the body. The carbon dioxide is the byproduct of the aerobic respiration, which is carries from the tissues and the lungs by blood. In the lungs at alveoli, the carbon dioxide is transferred from the blood to the lungs and released out through the nostrils. Hence, the out of the carbon dioxide represent excretion through lungs.
The answer is C and D.
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Answer:
Glucose is quickly broken down by liver and muscle cells to provide energy, which demonstrates that its type of chemical bonds is related to its function.
Answer:
D. Alveoli
Explanation:
Functionally, the respiratory system is separated into a conducting zone and respiratory zone:
Conducting zone consists of the nose, pharynx, larynx, trachea, bronchi, and bronchioles. These structures form a continuous passageway for air to move in and out of the lungs.
Respiratory zone is found deep inside the lungs and is made up of the respiratory bronchioles, alveolar ducts, and alveoli. These thin-walled structures allow inhaled oxygen (O2) to diffuse into the lung capillaries in exchange for carbon dioxide (CO2).
The respiratory zone begins where the terminal bronchioles join a respiratory bronchiole, the smallest type of bronchiole, which then leads to an alveolar duct, opening into a cluster of alveoli.
Both internal and external factors are capable of regulating the cell cycle of a specific type of cell (Option a).
<h3>What is the cell cycle?</h3>
The cell cycle refers to the period of life of a cell from which it is generated until its division (cytokinesis).
The cell cycle of a cell is regulated by internal factors such as cyclins and kinases that phosphorylate specific proteins as well as external factors that trigger the cell division (e.g. temperature conditions).
In conclusion, both internal and external factors are capable of regulating the cell cycle of a specific type of cell (Option a).
Learn more about the cell cycle here:
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