Mutualism and Ecosystem Interactions

The video tutorial covers lesson 3.3, focusing on ecosystems and indirect effects. It begins with an introduction and a haiku activity, followed by learning intentions and vocabulary review. The teacher guides students through analyzing a glacier seafood web and understanding indirect effects. Instructions for running simulations are provided, with missions to explore population changes in ecosystems. The lesson concludes with an annotation activity on acacia ants and mutualism.

What is the teacher's word of the day, and how did they express it?

• Calm, through a story

• Excited, through a song

• Happy, through a haiku

• Sad, through a limerick

What are students expected to do with the vocabulary words?

• Write a poem using them

• Draw a picture representing them

• Create a story involving them

• Pick two and write their definitions

Which populations are students asked to consider in the warm-up activity?

• Walleye pollock, algae, and orcas

• All of the above

• Zooplankton and sea turtles

• Kelp and sea urchins

What is an example of an indirect effect given by the teacher?

• Sleeping well and being alert in class

• Studying hard and passing a test

• Binge-watching shows and doing poorly on a test

• Eating healthy and feeling energetic

In the simulation, what was the goal related to the claw cat population?

• Decrease it without affecting the scale beak population

• Eliminate it completely

• Increase it without affecting the scale beak population

• Keep it constant while changing the furball population

What was the result of increasing the furball population in the simulation?

• The claw cat population decreased

• The claw cat population increased

• The green leaf population increased

• The scale beak population decreased

What is the main focus of the reading and annotation activity?

• The diet of acacia ants

• The mutualistic relationship between acacia ants and trees

• The relationship between ants and aphids

• The lifecycle of acacia trees

What do acacia ants provide to the bullhorn acacia trees?

• Water

• Protection from herbivores

• Nutrients

• Shade

What do the bullhorn acacia trees offer to the acacia ants?

• A source of light

• Food, water, and shelter

• A place to hibernate

• Protection from predators

What is the key concept highlighted in the reading about mutualism?

• Only one species benefits while the other is unaffected

• Both species benefit and would be harmed if one decreases

• Both species compete for resources

• One species is harmed while the other benefits