<em>Chloroplasts and Cell wall are the components which could be observed using a microscope</em><em> in a prepared slide of a leaf epidermal cells not in a prepared slide of himan cheek cells.</em>
<u>Explanation:</u>
<em>Chloroplasts is commonly known as a plastid which are contained in plants.</em> Chloroplasts contains chlorophyll and in the process photosynthesis is processed.
Cell wall is generally known for the surrounding of the cell as a border. <em>Cell wall is located just outside the cell membrane. </em>
Humans get D vitamin from sunlight. the plants perform photosynthesis and grow , we eat those fruits and vegetables grown in the plants. so indirectly we humans and other animals are benifitted from sun sunlight . flesh eating animals eat herbivores animala so they are also benifitted
