Answer:
The model of water from paper clips can be made as follows:
1) As a water molecule has a single atom of hydrogen, we can place the single green paper clip in the center. This green paper clip will depict a hydrogen atom.
2) As two oxygen atoms are present in a molecule of water we can place each of the two yellow paper clips at the sides of the green paper clip. These yellow paper clips will depict the oxygen atoms.
Answer:
Gram positive bacteria have cell walls composed of thick layers of peptidoglycan. Gram positive cells stain purple when subjected to a Gram stain procedure. Gram negative bacteria have cell walls with a thin layer of peptidoglycan.
Answer:
staphylococci
Explanation:
Gram stain -
it is the method of staining which classify the species of the bacteria into gram - positive and gram - negative .
This method distinguish the bacteria by its physical and chemical properties of the cell well of the bacteria .
1. In case of gram - positive , the stain is of color violet , because to its thick cell wall .
and ,
2. In case of gram - negative , the stain is of pink color , because to thinner cell wall .
The bacterium , which shows Gram - positive coccus after the gram stain is staphylococci .