Answer:
The producers play main role in the food chain and food web as well. These organism make food by the help of the process known as photosynthesis.
Only producers have the ability to make food by trapping sunlight. All the living source needs energy to survive.
The source of food is producers so living things cannot survive without food. So there producers are considered as the main component of food chains and food web.
hence, they play a very vital role in the environment.
This colored pigment is known as Hemoglobin. Hemoglobin is contained in the red blood cells of vertebrates and gives these cells their red color.
The Virus is a single molecule of nucleic acid surrounded by a protein coat, and the capsid.
<h3>
Why virus is a cellular agent that possesses membrane-bound organelles?</h3>
The above statement is totally False because the Virus are the non-living agents and they required a host cell to complete their life cycle. The Virus can not be classified under and classification system. Lister first promoted the use of disinfecting agents prior to surgery. Virus are very small agents that rely on living cells to multiply. The Virus may use an animal, plant, or bacteria as a host to survive and reproduce the same virus inside the body of host.
So we can conclude that the Virus is a single molecule of nucleic acid surrounded by a protein coat, and the capsid.
Learn more about virus here: brainly.com/question/25236237
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Answer:
pseudostratified
Explanation:
The epithelium of the nasal cavity, nasopharynx, trachea and bronchi is ciliated pseudostrtisfied columnar epithelium, often with goblet cells
