Is there any living being without cell
Is there any living being without cell? Illustrate.
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It is considered that the virus is the only alive beings which do not have cells. The virus are constituted by genetic material (RNA or DNA) enwrapped by a protein capsule. They don’t have membrane and cell organelles neither the self-metabolism.
Explain the term lichens? How do fungi contribute in this ecological interaction?
Write down the main mineral salts responsible for cellular osmotic regulation?
What are the fundamental morphological features of the echinoderms?
Why are various kinds of hemorrhagic diseases caused by the genetic or acquired deficiency of vitamin K metabolism?
In the time of Darwin the results of Mendel’s research on biological inheritance had not been published, Genetics was not yet developed, neither DNA nor the concept of genetic mutation were known. What is the modern darwinist theory that incorporates these bodie
Write down some main differences of vertebrate nervous systems comparing to invertebrates?
Is there any interphase again among meiosis I and meiosis II?
Describe main treatments of diabetes mellitus?
Define the term Generation X and what are their characteristics in Generation groups of Employees ?
Explain the apical meristems? State which type of the plant growth does this meristem promotes?
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