Answer:
4. Molecules are groups of atoms that have chemically bonded together.
5. Groups of different types of cells make up the organs 
6.  Glucose is a type of chemical reaction, and the overall metabolism of an organism includes thousands of chemical reactions.
7. Yes, The smooth functioning of a complex organism is the result of all it various parts working together.
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The general shape of the epithelial cells that are nearest
to the lumen in an empty urinary bladder is in multiple cell layers which are
considered to be a stratified tissue and the cells in it are shaped in terms of
the organ’s distention. This type of epithelial cell is the transitional
epithelium.
 
        
             
        
        
        
Explanation:
meiosis cell are parent cell
 
        
             
        
        
        
Answer:
The correct answer is B
Explanation:
The gas particles occupy the entire container that contains them, colliding with the walls of the same, the degree of separation between the particles is large. The gases have no defined shape or volume, are highly compressible