Tuesday 1/18 Lesson

Ecological Relationships

Multiple Choice

In the jungles of South America lives a thorn tree call an acacia. A species of ant eats secretions of the acacia, drinks its sap, and raises its young in the hollow thorns. The ants also keep competing vines from growing near the acacia tree and they help repel any insects that would damage the acacia tree.

• mutualism

• commensalism

• parasitism

Multiple Choice

Hookworms enter the human body by burrowing into the skin of the feet. Once in the skin, they enter the bloodstream and travel to the small intestine where they attach to the walls and begin to drink the person's blood and weaken the victim.

• mutualism

• commensalism

• parasitism

Multiple Choice

One species benefits, the other is unaffected

• symbiosis

• parasitism

• mutualism

• commensalism

Competition

Interspecific competition= organisms of different species

Intraspecific competition= organisms of the same species​

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​Competition is when two organisms (or more) fight for the same resources

Open Ended

What examples can you think of interspecific competition? (Between two different species)

Open Ended

What examples can you think of intraspecific competition? (Between the same species)

Open Ended

What examples can you think of predation?

Multiple Choice

A consumer that hunts is called

• Producers

• Omnivore

• Predator

• Herbivore

Multiple Choice

What is the role of the bird?

• Predator

• Producer

• Prey

Multiple Choice

Which of these is a predator?

• Zebra

• A lion

• Honey bee

• Mosquito

Multiple Choice

A symbiotic relationship where both organisms benefit.

• Mutualism

• Predation

• Parasitsm

• Competition

Multiple Select

Select 2 examples of predation.

Multiple Choice

Which organisms in the food web shown to the right are predators that compete for the same prey in this environment?

• Coyotes and rabbits
• White-tailed deer and rabbits
• Leafy weeds and cotton rats
• Bobcats and coyotes

Multiple Choice

Which of the following activities represents competition among organisms?

• A family of rabbits feed on abundant pine seeds.     
• A coyote pup learns to stalk both rabbits and hares.
• A wolf steals a rabbit killed by a coyote.
• A bobcat catches several rabbits as the rabbits eat pine seeds.

Multiple Choice

Which organism in the food web shown above competes with white-tailed deer for food in this ecosystem?

• Coyotes
• Balckberries
• Cotton Rats
• Bobcats