What is a pathogen?
Bacteria may contain small extra circular bits of DNA. These are called:
Which of the following organisms is not a pathogen?
What is the cause of athlete’s foot?
What type of organism causes malaria?
How is influenza (flu) spread?
How do viruses reproduce?
How do bacteria make you ill?
Which of these is NOT a way your body defends itself against pathogens?
Prebiotics are substances which