Key Terms
What is a Virus?
Very tiny particle that consists of a nucleic acid and protein coating
Immunity means that an animal is protected from catching a certain disease.
Are plant-like structures that lack chlorophyll and can grow and thrive in dark damp places.
Short for proteinaceous infectious particle.
What is a way that animals can get poisoned?
Eat feed that is contaminated.
What is an Infectious disease?
Caused by micro organisms that invade an animal's body
What is active immunity?
Means that the animal is more or less permanently immune to the disease.
Are mushrooms a type of fungi?
Yes
What are prions responsible for?
PSE diseases
What can farmers do to prevent this?
Make sure that feed fed to agriculture animals are free from mold.
What is a Contagious disease?
When an animal can pass a disease onto a healthy animal
What is passive immunity
Means that the animal is only temporarily immune.
Can fungi digest food inside their bodies?
No, they digest food on the outside of their bodies.
What is the most widely known disease by Prions that affect agriculture
Scrapie
Grazing poisonous plants.
What are Cocci?
Round, spherical shaped bacteria
Are some animals born with some immunity to diseases?
Yes
What are spores?
Spores are somewhat like very tiny seeds
that are dispersed on the wind.
What is Scrapie?
A disease in sheep that infect the central nervous system, causes these animals to rub against trees.
Name three plants that can be harmful to agriculture animals
ferns, bitterweed, butter-cups, cocklebur, and milkweed, can be poisonous to some species of agricultural animals
What are Bacillus?
Rod shaped organisms
How is naturally acquired active immunity obtained?
Obtained by the animal’s actually having a disease
and recovering.
What is Aspergillus fumigatus?
Causes hard nodular areas to develop in the lungs and an infection of the air sacs of poultry.
What is BSE best known as?
Mad cow disease
List 3 bacterias according to shape
Cocci, bacillus, spirilla