That's easy, cellular respiration
Answer:
You have the right answer, its B.
Explanation:
Because comets are darker colored so they need light to shine on them to be seen in the dark skies of space.
Answer:
The correct answer is A. The cartilaginous structure between the "throat" and the trachea is the larynx.
Explanation:
The larynx is a tubular organ. The larynx wall is composed of 9 pieces of cartilage. Three are odd (thyroid cartilage, epiglottis and cricoid cartilage), and three pairs (arytenoid, cuneiform and corniculate cartilage). In addition, it communicates the pharynx with the trachea and is in front of it.
Of lower concentration and higher concentration
