NMWD226 UNIT 1 AND 2

What is the primary function of the epidemiological triangle?

• Tracking migratory disease carriers

• Explaining disease causation through diet

• Describing the interaction between host, agent, and environment

• Understanding animal genetics

Which plant is responsible for causing "quick sickness" in ruminants?

• Geigeria

• Tribulus

• Pachystigma

• Lantana camara

What symptom is not typically associated with vomiting sickness (Geigeria)?

• Gullet paralysis

• Vomiting through mouth and nose

• Severe diarrhoea

• Lung contamination

Which animals are least likely to suffer prussic acid poisoning despite eating Acacia leaves?

• Buffalo

• Eland

• Springbok

• Giraffe

What is the toxic compound in Dichapetalum cymosum (Gifblaar)?

• Alkaloids

• Monofluoroacetic acid

• Tannins

• Saponins

Which of the following statements best describes a disease vector?

• An animal that is immune to disease

• A host where pathogens multiply

• An insect or arthropod that carries disease

• A plant that produces toxins

Which organ is mainly affected by Lantana camara poisoning?

• Brain

• Liver

• Kidneys

• Lungs

What symptom is most commonly associated with tribulosis (caused by Devil's thorn)?

• Heart failure

• Skin swelling and sunburn

• Gastrointestinal bleeding

• Muscular twitching

What is a key characteristic of alkaloids in poisonous plants?

• Absence of nitrogen

• Fat-soluble and stored in seeds only

• Inhibits nerve conduction

• Causes rapid bloating

Which of the following is not a factor influencing susceptibility to disease in hosts?

• Age

• Medication use

• Geography

• Health status