B Dartos muscle is not one of that
Answer:
C. Bacteria
Explanation:
Above ANS is correct mark it as branlist answer
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.
Answer: A peptide bond
Explanation:
A peptide bond is a type of bond that covalently joins two amino acids to yield a dipeptide. A peptide bond is formed by removal of elements of water from the alpha carboxyl group of one amino acid and the alpha amino group of another amino acid. When two amino acids are joined by a peptide bond, a dipeptide is produced. When three amino acids are joined by two peptide bonds, a tripeptide is produced. When a few amino acids are joined by peptide bonds, an oligopeptide is produced while when many amino acids are joined, the product is called a polypeptide.
