Answer: Digesting food is a chemical change.
Explanation:
Chemical changes cannot be undone so digesting the food is considered a chemical change.
Answer: last option is correct, musculoskeletal, nervous
Explanation:
Answer:
A pure culture consists of only one type of microbe while a mixed culture has two or more than two microbes.
Explanation:
A pure culture consists of only one type of microbe.
While a mixed culture consists of more than one type of microbes. such cultures may comprise of different species of bacteria or a group of bacteria, viruses and other pathogens.
In mixed culture the microbe species living together may harm each other existence.
