Are there any living beings with no cells
Are there any living beings with no cells?
Expert
The Viruses are believed the only living beings which do not have cells. Viruses are comprised by genetic material (that is, RNA or DNA) enwrapped by a protein capsule. They do not contain membranes and cell organelles nor do they encompass self-metabolism.
Define the term “Cost of Quality” and is ramifications or implications in the organization.
How does photosensitivity in the cnidarians, annelids and worms differ from cephalopods, insects, and the vertebrates?
Regarding their biological function what is the basic difference between RNA and DNA?
What is the compound which is phosphorylated for ATP formation? What is the resultant compound whenever ATP releases energy?
Lipid rafts provide another example of the complexity of cell surfaces in both their structural character and biologic functionality. Please explain the nature of these structures and their functionality.
Do sponges contain circulatory, nervous and excretory systems? Answer: Sponges do not contain a nervous system neither circulatory nor excretory system.
How dissimilar are reptiles and birds regarding the maintenance of body temperature? Are birds rare in Polar areas?
Define the term allergens?
How carbon dioxide is released by the cellular respiration, transported from the tissues, which is to be eliminated through the lungs?
Where in the leaves is photosynthetic tissue frequently located?
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