ANSC 3270 Midterm 1 2026
Exam Questions and Verified
Answers | Already Graded A+
What is a stressor? - 🧠 ANSWER ✔✔something that disrupts homeostasis
in an organism and elicits a stress response
What is a stress response - 🧠 ANSWER ✔✔involves activation of multiple
physiological systems during perceived danger
How does a stress response manifest - 🧠 ANSWER ✔✔as a fight, flight or
freeze response
,What is short-term stress response designed to do - 🧠 ANSWER
✔✔enhance survival of an organisms by restoring physiological
homeostasis
How is a stress sensory input relayed to the brain (3) - 🧠 ANSWER
✔✔through neural transmitters, endocrine hormones and immune
cytokines
How is variation in stress response determined by (3) and how are they
regulated - 🧠 ANSWER ✔✔determined by genetics, environmental factors,
and gene-by-environment interactions.
Regulated by epigenetics mechanisms
What is a resilient animal to stress - 🧠 ANSWER ✔✔they are able to resist,
cope, or completely recover from perceived danger
What happened if an animal is sensitized to a stressor - 🧠 ANSWER
✔✔can lead to hyper-responsiveness to the same stressor or other
stressors during subsequent exposure
,What are 3 examples of physical stressors - 🧠 ANSWER ✔✔Heat, cold,
climate change
What is an example of a chemical stressor - 🧠 ANSWER ✔✔mycotoxins
What is an example of a biological stressor (4) - 🧠 ANSWER ✔✔bacteria,
fungi, virus, parasite
infectious stressor
What is an example of a physiological stressor - 🧠 ANSWER ✔✔weaning
What was found to be the most infectious time of the year for the
haemonchus contortus in european sheep? Why? - 🧠 ANSWER ✔✔Jul,
Aug, Sept. The parasite can grow in the growing grass, which the sheep
eat, and get infected from
What is Q0 - 🧠 ANSWER ✔✔Potential infection pressure
How does CO2 relate to infection pressure - 🧠 ANSWER ✔✔believed that
as CO2 increases, so does the infection pressure
The time of day regulates what 2 viruses in mice - 🧠 ANSWER ✔✔Herpes
and influenza
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
, How does a viral infection worsen in the body - 🧠 ANSWER ✔✔when
circadian rhythm is abolished by disruption of a key circadian clock gene
What is the key circadian clock gene - 🧠 ANSWER ✔✔BMAL 1
How does BMAL 1 change in humans during the year - 🧠 ANSWER
✔✔blood concentration decreases in the winter, and can be correlated to
the increased risk of infection during the winter
What is the most critical component to animal management in regards to
stressors - 🧠 ANSWER ✔✔matching animals to their environment. Miss-
match can lead to stress and may increase risk of disease
What is the most appropriate breed for a dog in an apartment - 🧠 ANSWER
✔✔Cavalier King Charles Spaniel
what is the best dairy breed if you want to increase dairy production in
Brazil - 🧠 ANSWER ✔✔Holstein/Gir cross
What breed would you use to increase resistance to gastrointestinal
parasites in sheep? - 🧠 ANSWER ✔✔Gulf Coast
What fish species grows well in warm water - 🧠 ANSWER ✔✔tilapia
Exam Questions and Verified
Answers | Already Graded A+
What is a stressor? - 🧠 ANSWER ✔✔something that disrupts homeostasis
in an organism and elicits a stress response
What is a stress response - 🧠 ANSWER ✔✔involves activation of multiple
physiological systems during perceived danger
How does a stress response manifest - 🧠 ANSWER ✔✔as a fight, flight or
freeze response
,What is short-term stress response designed to do - 🧠 ANSWER
✔✔enhance survival of an organisms by restoring physiological
homeostasis
How is a stress sensory input relayed to the brain (3) - 🧠 ANSWER
✔✔through neural transmitters, endocrine hormones and immune
cytokines
How is variation in stress response determined by (3) and how are they
regulated - 🧠 ANSWER ✔✔determined by genetics, environmental factors,
and gene-by-environment interactions.
Regulated by epigenetics mechanisms
What is a resilient animal to stress - 🧠 ANSWER ✔✔they are able to resist,
cope, or completely recover from perceived danger
What happened if an animal is sensitized to a stressor - 🧠 ANSWER
✔✔can lead to hyper-responsiveness to the same stressor or other
stressors during subsequent exposure
,What are 3 examples of physical stressors - 🧠 ANSWER ✔✔Heat, cold,
climate change
What is an example of a chemical stressor - 🧠 ANSWER ✔✔mycotoxins
What is an example of a biological stressor (4) - 🧠 ANSWER ✔✔bacteria,
fungi, virus, parasite
infectious stressor
What is an example of a physiological stressor - 🧠 ANSWER ✔✔weaning
What was found to be the most infectious time of the year for the
haemonchus contortus in european sheep? Why? - 🧠 ANSWER ✔✔Jul,
Aug, Sept. The parasite can grow in the growing grass, which the sheep
eat, and get infected from
What is Q0 - 🧠 ANSWER ✔✔Potential infection pressure
How does CO2 relate to infection pressure - 🧠 ANSWER ✔✔believed that
as CO2 increases, so does the infection pressure
The time of day regulates what 2 viruses in mice - 🧠 ANSWER ✔✔Herpes
and influenza
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
, How does a viral infection worsen in the body - 🧠 ANSWER ✔✔when
circadian rhythm is abolished by disruption of a key circadian clock gene
What is the key circadian clock gene - 🧠 ANSWER ✔✔BMAL 1
How does BMAL 1 change in humans during the year - 🧠 ANSWER
✔✔blood concentration decreases in the winter, and can be correlated to
the increased risk of infection during the winter
What is the most critical component to animal management in regards to
stressors - 🧠 ANSWER ✔✔matching animals to their environment. Miss-
match can lead to stress and may increase risk of disease
What is the most appropriate breed for a dog in an apartment - 🧠 ANSWER
✔✔Cavalier King Charles Spaniel
what is the best dairy breed if you want to increase dairy production in
Brazil - 🧠 ANSWER ✔✔Holstein/Gir cross
What breed would you use to increase resistance to gastrointestinal
parasites in sheep? - 🧠 ANSWER ✔✔Gulf Coast
What fish species grows well in warm water - 🧠 ANSWER ✔✔tilapia
