Answer:
Are caused by bacteria viruses or parasites
Explanation:
not all cause visible symptoms
it would not be a sexual transmitted infection if not caused by sexual contact
STIs can be contracted by men and women
A mystery organism is non living
Answer: true : A pure substance is something that occurs in nature. An element is made up of one type of atom only and cannot be split further. A compound has the combined properties of the elements from which it is made. Atoms show the macro properties of an element.
Explanation:
Answer:
The first discovered enzyme was Zymase. It naturally occurs in the yeast and helps in fermenting the sugar molecules producing carbon dioxide and ethanol.
