Choose the word that best completes the sentence

Bacteria cells have a rigid cells that gives the bacteria its shape

The outermost structure of the bacteria is the , which comes in contact with the environment.

Some bacteria have , or whiplike tails that spin to propel them forward.

1. wall

2. capsule

3. flagella

Explanation:

1. Bacterial cells have a structure called a cell wall that encircles the entire organism. It provides both support and gives the bacteria its shape.

2. Bacteria also have capsules, which are protective surfaces to prevent the bacteria from coming into contact with harmful substances.

3. Finally, many bacteria have certain organelles that facilitate movement. One example is flagella, which are like whiplike tails that govern their movement.

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