Cortisol and Bird Behavior Study

Mr. Nolan discusses the inherited boldness in juncos, focusing on the chemical influences on behavior. The video explores the role of corticosteroid in birds, comparing it to cortisol in humans. The study results are reviewed, highlighting differences in corticosteroid levels between San Diego and Mount Laguna juncos. The video concludes with an overview of the research methodology used to collect data.

What was the main finding about the behavior of juncos in the previous lesson?

• Behaviors are plastic.

• Behaviors are inherited.

• Behaviors are learned.

• Behaviors are temporary.

How do San Diego juncos differ from Mount Laguna juncos in terms of boldness?

• Both populations are equally bold.

• San Diego juncos are bolder.

• Mount Laguna juncos are bolder.

• San Diego juncos are less bold.

What is the significance of the common garden experiment in the study?

• It examines bird diet.

• It highlights inherited behaviors.

• It focuses on bird migration.

• It shows learned behaviors.

What is the central question being explored in this lesson?

• How do juncos migrate?

• Why are juncos' behaviors learned?

• What do juncos eat?

• What are the differences in juncos' behaviors?

Which chemical is primarily associated with anxiety in humans?

• Cortisol

• Dopamine

• Adrenaline

• Serotonin

What role does cortisol play in the human body?

• It increases happiness.

• It enhances bone formation.

• It suppresses the immune system.

• It reduces stress.

What is the main difference between cortisol and corticosteroid?

• Cortisol is found in birds.

• Corticosteroid is found in humans.

• Cortisol has an extra hydroxide group.

• Corticosteroid is unrelated to stress.

What is the effect of high cortisol levels on human health?

• Enhanced bone growth.

• Increased longevity.

• Improved immune function.

• Suppressed immune system.

What is the purpose of measuring corticosteroid levels in birds?

• To determine their diet.

• To assess their stress response.

• To track their migration patterns.

• To measure their size.

What is the primary focus of the study discussed in the video?

• Bird nesting behaviors.

• Bird feeding habits.

• Chemical influences on boldness.

• Bird migration patterns.