19:04

1 answer:

4 0

As a person pushes a box across a floor, the energy from the person's moving arm is transferred to the box, and the box and floor become warm during this process, energy is conserved.

Explanation:

This process happens because of conservation of energy. According to the rule of the conservation of energy. Energy can’t be created not destroyed. It simply transformed or converted from one form to another. It simply means this system always need same amount of energy.

When a person moving arm is to transferred into box is form of kinetic energy and on the same way when then floor and box becomes warmer it converts into heat energy. Here the energy transformed into one to another form.

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Answer:

1) Sterilize the loop.

2)Flame lip of TSS culture with S. aureus.

3) Remove some bacteria from surface of TSS culture with S. aureus. Remove loop.

4)Flame lip of TSS culture with S. aureus.

5)Flame lip of broth culture tube.

6) Dip loop into sterile TSB and swirl. Remove loop.

7)Flame lip of broth culture tube.

8) Sterilize the loop.

Explanation:

The aseptic technique is a series of steps to prevent contamination during manipulations of cultures and sterile culture media. A mastery of aseptic technique is required for maintaining pure cultures, as airborne contaminants are virtually everywhere. Picking an isolated colony and restreaking it is the main method for obtaining pure cultures from liquid samples containing several different organisms and is a common procedure in the microbiology laboratory. Other techniques for obtaining pure cultures have been developed that are especially suited for particular groups.