Blog 5

There are two types of bacteria. Bacteria that is benificial to humans, and bacteria that is harmful to humans.
The benificial bacterias in humans are very important. They produce enzymes that help digest food, they produce vitamins, and out number bad bacterias which limit their growth.


Harmful bacteria to humans, such as Salmonella, can cause severe illness like typhoid fever.
Many other harmful bacteria are the cause behind human illnesses.

Planets Temperature Just Right For Life?

Astronomers say they have found a planet suitable for life. They have named it the "Goldilocks" planet. The planet is orbiting a star a mere 20-light years away. They say it is a possibility that this planet can have life because it is not too hot nor too cold, its just the right temperature. Because of this liquid water can exist, however, the planet must also have the right surface gravitiy.