B
Anaerobic respiration produces ethanol in plants and some other organisms and lactic acid in animals
Responding to the environment is a characteristic of the life best shown by a living organism.
<h3>What is a Living organism?</h3>
This is referred to as a biological entity which is capable of transferring genetic traits to its offspring and also undergoes cell division which ensures its body parts grow. They are also involved in the search for food and other types of nutrients for their normal functioning.
Living organisms are able to perform such functions such as the following below:
- Growth
- Irritability
- Movement
- Reproduction
- Respiration
- Excretion etc.
Plants and animals possess special structures which enable them respond to different types of stimuli such as heat, cold etc. This enables the body system adjust and adapt thereby increasing the survival chances of the organism.
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Its A. it prevents sperm from reaching the egg and fertilizing it.
It's A, because it's always important to drink water. If you think about it, all the other answers seem invalid.
