Lab
Which animal did the pellet come from?
An Owl
What is the main source of energy for most ecosystems?
The Sun
Digestive and Skeletal Systems
What are abiotic factors?
Living components or (once living) factors of an ecosystem
What is a trophic level?
A position an organism has in a food chain
What should you wear to protect yourself during the dissection?
Goggles and gloves
Name the structure that is responsible for the pellet's shape
The Gizzard
What body system gives the body its shape and holds it up-right?
Skelatal System
What is carrying capacity?
The maximum number of individuals of a specific species that an environment can sustainably support over time without damaging the habitat
Is a barn owl a producer or consumer?
Consumer
What should you do with the bones after seperating them from the pellet?
Clean them and organize/identify them
What is an autotroph?
A producer. An organism that makes its own food using energy from sunlight or chemical reactions
What is the integumentary system?
The outer organ system of the body that includes the skin, hair, nails, and associated glands, acting as a vital physical barrier against the external environment
Name THREE factor that can limit the size of a population
Food. water, space, shelter, predators, disease
What is an animal that hunts and eats another animal called?
Prey
After completing the dissection, what should you do before leaving lab?
Clean the workplace, dispose/store materials properly, and wash your hands
Can an organism belong to more than one trophic level? Explain.
The owl digests the soft tissues but indigestible bones from the prey's skeletal system remain and are regurgitated
It will decrease or level off
Grass-->Mouse-->Owl
What trophic level does the owl occupy?
3rd trophic level
Which organisms are typically found in an owl pellet?
Mole, shrew, rodents, bird, other prey (insects, crayfish)
Which is your favorite organ system? Explain by using a story. "Once upon a time..."
Answers vary. Student should describe the organ system by using a personal or made up story.
A person becomes infected with SARS COV2. How do the respiratory system and immune system work together as the body responds to the infection?
The respiratory system is affected when the virus infects cells in the airways, while the immune system recognizes the infection and responds to fight the virus
If the owl population decreases, what might happen to the carrying capacity of mice?
Mouse population increases, but carrying capacity itself depends on limiting resources and does not automatically increase
If snake population decreases, what would happen to the mouse population AND the owl population?
Mouse Population-->Goes up
Owl Population-->Goes Down