Answer:
B. Form of active transport
Explanation:
The question that is most likely to be studied by biologists could be "What is the effect of exercise on heart rate in horses?" since they study everything related to the Life. <em>Hope</em><em> </em><em>this</em><em> </em><em>answers</em><em> </em><em>your question</em><em>.</em><em>.</em><em> </em><em>And</em><em> </em><em>good</em><em> </em><em>luck</em><em>!</em><em> </em>
False. Oxygen is absorbed in the alveoli sacs of the lungs.
Upon inhalation Air must first pass through the larynx and down to the trachea, which then splits off into two separate bronchial tubes, the bronchial tubes divide into smaller air passages known as the bronchi and those into even smaller bronchioles. The bronchioles end in tiny sacs called the alveoli which transfer the oxygen from the inhaled air to the bloodstream.
Parietal and frontal.. whichever one your looking for
Yes, the pterosaurs is the ancestor of the bird.
