Body Defences

Which of these is a causal agent for anthrax?

• Bacillus anthracis
• Escherichia coli
• Clostridium botulinum
• Streptococcus pyogenes

TRUE or FALSE? Viruses are living

• FALSE
• TRUE

TRUE or FALSE? Protozoa are eukaryotic

• TRUE
• FALSE

Resident flora are...

• Microorganisms that do not live on another organism

• Microorganisms that cause disease

• Microorganisms that live in or on the body

How can resident flora cause an infection?

• Overgrowth or migration of resident flora
• Resident flora cannot cause infections
• Resident flora is always beneficial

Which of these is an example of direct contact?

• Sneezing

• A vector

• Shaking hands
• Waving from a distance

Which of these is an example of a chemical barrier?

• Muscle contraction
• Skin secretion
• Intestinal mucus
• Stomach acid

Which of the following is NOT a characteristic of bacteria?

• Has a nucleus

• Reproduces by binary fission

• Can be pathogenic

• Has cell wall

TRUE or FALSE? Fungi can be multicellular organisms.

• TRUE

• FALSE

What is the primary mode of transmission for tuberculosis?

• Direct contact

• Vector-borne

• Airborne droplets

• Contaminated water