Continuously facing towards the east also helps the flowers to heat up quickly. This gives them an advantage in pollination, as warm flowers attract insects. Therefore, in the plant's interest, the flower always faces the sun and is therefore always clearly visible to these important pollinators.
They ensure they leave the system and they also ensure that people get the nutrients they need.
The primary source of energy in a food chain is Sun, because producers are the ones that prepare food by themselves and that food is then passed on to higher levels in food chains. And as the producers make their from Sunlight, the primary source of energy in food chain is <u>Sunlight</u> .
<span>The parotid salivary glands are </span><span>located ventral to the ear and produce nearly half of the total volume of saliva produced. They are the major salivary glands in animals and humans.</span>The parotid gland has four surfaces — superficial or lateral, superior, anteromedial, and posteromedial and receives both sensory and autonomic innervation.