Answer : The The correct option is, If there is energy lost in the collision to sound, heat, etc., the collision is inelastic.
Explanation :
- Elastic collision : It is defined as in which there is no loss of kinetic energy in the collision.
- Inelastic collision : It is defined as in which there is a loss of kinetic energy in the collision and this energy changed to another form of energy.
If the collision involves bouncing, it is inelastic because kinetic energy is not conserved.
If the collision involves sticking together, it is inelastic because kinetic energy is not conserved, it is changes to potential energy.
Some scientists are studying a newly discovered microbe and determine that it consists of a single cell, lacking a nucleus. this organism could be <u>a bacterium.</u>
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<h3>What do you mean by bacterium?</h3>
- Any of a large group of one-celled organisms that reproduce by fission or by generating spores, lack a cell nucleus, and occasionally cause disease.
- They are the most prevalent life forms on Earth, present in all living organisms as well as all climatic conditions.
<h3>What can be discovered in bacteria?</h3>
- Its gel-like matrix, which also contains other cell components like ribosomes, chromosomes, and plasmids, is made up of water, enzymes, nutrients, waste products, and gases.
- The cytoplasm and all of its elements are enclosed by the cell membrane.
- Bacteria do not have a nucleus that is contained in a membrane like eukaryotic (true) cells do.
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Answer:
The correct option is <em><u>B. Eukarya only</u></em>
Explanation:
Bacteria can be described as prokaryotic organisms that do not possess a nucleus. Their genetic material is generally present in the cytoplasm of the cell in a region called nucleoid. Some extra genetic material is found in them in the form of plasmids. Hence, option D is not correct.
The domain, Archae, contains prokaryotes and they lack a nucleus. Hence, option A and C are not correct.
Eukaryotes are multicellular organisms which contain a nucleus and other membrane-bound organelles. Hence, option B is correct.
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