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Answer: Plant Cell</h2>
Explanation:
A plant cell is the only cell that has all these characteristics. The box-like structure is due to the cell wall, the large central vacuole which helps with the rigidity of the cell, and chloroplast which contains chlorophyll for photosynthesis.
The number of covalent bonds that an atom tends to form is equal to the number of valence electrons.
Explanation:
Covalent bonds are formed between non-metals by sharing of the equal number of valence electrons between the two atoms. The valence electrons are the number of electrons in the outermost shell of the atom. These valence electrons share between the atoms and from bonds. eg. are NH3 and H2.
The sharing of valence electrons complete the octet rule and covalent bonds are formed.
By hydrogen bonds!!!!!!!!!!
It was the famous Theodor Escherich who is a famous German bacteriologist that discovered the E. coli and was also known for his research in the area of protein synthesis. In addition to that, Theodor Escherich discovered the bacteria type when he examined its samples from a patient suffering from gastroenteritis.
