<em><u>Answer:Anatomically, respiratory tract is divided into upper (organ outside thorax - nose, pharynx and larynx) and lower respiratory tract (organ within thorax - trachea, bronchi, bronchioles, alveolar duct and alveoli). The discussion is mainly concentrated on the lower respiratory tract and the related physiology.</u></em>
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Endoplasm<span> generally refers to the inner (often granulated), dense part of a cell's cytoplasm. This is opposed to the </span>ectoplasm<span> which is the outer (non-granulated) layer of the cytoplasm, which is typically watery and immediately adjacent to the plasma membrane.</span>
Answer: The structure is chloroplast.
Explanation: Photoautotrophs are organisms that can synthesize food using light energy and carbon dioxide via photosynthesis.
Photoautotroph is a combination of two words: photo which means light and autotroph which means an organism that can manufacture its own food.
A photoautotroph manufactures its own food in a process known as photosynthesis. Photosynthesis is a process by which plants manufacture organic foods such as glucose using light energy, carbon dioxide and water. This process takes place in the chloroplast. A chloroplast is an organelle found in plant cells that contains chlorophyll which is the pigment that absorbs the light used in photosynthesis.
