Ecology Concepts for AP Biology

This video provides a comprehensive review of ecology concepts for AP Biology, covering organismal responses to environmental changes, energy flow in ecosystems, population growth models, community interactions, and ecosystem disruptions. It emphasizes the importance of understanding these concepts for the AP Biology exam, offering examples and explanations to aid in comprehension.

Which of the following is typically the last unit taught in the AP Biology course?

• Evolution

• Ecology

• Cell Biology

• Genetics

Tags

NGSS.HS-LS4-1

NGSS.HS-LS4-2

NGSS.HS-LS4-4

What is phototropism?

• How plants respond to the changing length of day

• How plants or other organisms grow or orient themselves towards light

• Movement toward or away from a particular stimulus

• Random movement in response to a stimulus

What is the difference between taxes and kinesis?

• Both are types of directional movement

• Taxes is random movement, while kinesis is directional movement

• Taxes is directional movement, while kinesis is random movement

• Both are types of random movement

Which of the following is an example of an innate behavior?

• Learning to avoid predators

• Using tools to obtain food

• Migratory patterns in birds

• Learning to hunt from parents

Tags

NGSS.HS-LS4-4

What is the primary difference between endotherms and ectotherms?

• Endotherms generate heat through metabolism, while ectotherms rely on external sources for body heat

• Endotherms and ectotherms both rely on external sources for body heat

• Endotherms are always warm-blooded, while ectotherms are always cold-blooded

• Endotherms rely on external sources for body heat, while ectotherms generate heat through metabolism

In a trophic pyramid, what percentage of energy is typically lost at each level?

• 10%

• 50%

• 75%

• 90%

Tags

NGSS.HS-LS2-4

What type of growth model assumes unlimited resources for a population?

• Logistic growth model

• Exponential growth model

• Carrying capacity model

• Diversity index model

What is the carrying capacity of a population?

• The number of species in a community

• The rate at which a population grows exponentially

• The maximum number of individuals an environment can support

• The diversity of a particular community

Tags

NGSS.HS-LS2-1

Which type of symbiotic relationship benefits one organism while the other is unaffected?

• Competitive

• Commensalistic

• Mutualistic

• Parasitic

What is the primary reason species become endangered or extinct?

• Introduction of new diseases

• Habitat loss

• Invasive species

• Climate change

Tags

NGSS.HS-ESS3-5

NGSS.HS-LS4-5