<h2>Operational </h2>
Explanation:
The operational definition is the description of a specific process, or set of validation tests, accessible to more persons than the definer (i.e., said to be publicly accessible), where it can be repeatedly measured or tested
Operational definitions are also used to define system states or (nonspecific) physical objects by the description of a specific process of preparation which can be repeated
For example in the given example experimenter is using the case of hitting a punching bag to measure the level of aggression in someone
Certainly most of the microorganisms in nature have been successfully cultured in the laboratory. In fact there are several ways to do it using different kind of mediums that help the development of microorganisms. Also, there are various type of medium for developing various kind of cells.
The answer should be C. I remember learning about this a few years back. I hope it’s right !
<h3><u>Answer;</u></h3>
- Prokaryotic only: <u><em>nucleoid
</em></u>
- Eukaryotic only:<u><em> nucleolus, lysosome, mitochondria
</em></u>
- Both: <em><u>plasma membrane, ribosomes, flagelia</u></em>
<h3><u>Explanation;</u></h3>
- <em><u>Prokaryotic cells are those cells that lack nucleus and other membrane bound organelles, unlike eukaryotic cells which contain a membrane bound nucleus and membrane bound organelles such as mitochondria, and lysosomes.</u></em>
- <em><u>Prokaryotic cells lack the nucleus and nucleolus, but instead contain a nucleoid which contains the genetic materials of the cell.</u></em>
- <em><u>Eukaryotic cells on the other hand contain a well defined nucleus, that contains nucleolus and highly complex genetic material.</u></em>
- Despite the differences, <em><u>they both share a number of organelles and characteristics such as plasma membrane, which regulates the movement of substances in and out of the cells, ribosomes, sites for protein synthesis, and also flagella, for locomotion.</u></em>