Daily TAKS Connection:Interactions Among Organisms

BIO (12): The student knows that interdependence and interactions occur within an ecosystem. The student is expected to:

(B) interpret interactions among organisms exhibiting predation, parasitism, commensalism, and mutualism

Day 1

Construct a four door, shutter fold foldable Materials:

Foldable handout Scissors Pen Colored

pencils/crayons

Instructions: Fold the paper along the

solid fold lines (front side facing you)

Cut the paper along the dashed lines

Record your name, date and period on the reverse

Color the 4 terms (predation, parasitism, commensalism, and mutualism) each a different color

Day 1 notes

Record the notes from under the appropriate door on your foldable

Mutualism: A relationship in which both organisms benefit from the relationship.

Example: Clown Fish & Sea Anemone – the fish receives protection from enemies and the anemone receives scraps of leftover food from the fish

Commensalism: A relationship in which one organism benefits, and the other is neither helped nor harmed

Example: Egret & Rhino – the bird receives protection from predators by its proximity to the rhino and the rhino is neither helped nor harmed

Day 2 notes continued…

Parasitism: A relationship in which one organism, who lives on another, benefits, and the other organism is harmed. Example: Fleas & Dog – the fleas gain nourishment

from the dog and the dog itches from the bite Predation: A relationship in which one organism

benefits (the predator) and the other organism is killed/consumed (the prey) Example: Lion & Zebra/Rabbit & Lettuce – the lion eats

the zebra; the rabbit eats the lettuce

Question 1

Which situation best represents a parasitic relationship?

a. A tapeworm absorbing nutrients from the intestine of a dog

b. An orchid being pollinated by a nectar collecting wasp

c. A bear eating a berryd. An armadillo rooting in the soil at the base of

an oak tree

Question 2

Which situation best represents a commensalistic relationship?

a. A tapeworm absorbing nutrients from the intestine of a dog

b. An orchid being pollinated by a nectar collecting wasp

c. A bear eating a berry

d. A bird builds a nest in a tree.

Question 3

Which situation best represents a predator/prey relationship?

a. A tapeworm absorbing nutrients from the intestine of a dog

b. An orchid being pollinated by a nectar collecting wasp

c. A bear eating a berryd. An armadillo rooting in the soil at the base of

an oak tree

Question 4

Which situation best represents a mutualistic relationship?

a. A tapeworm absorbing nutrients from the intestine of a dog

b. An orchid being pollinated by a nectar collecting wasp

c. A bear eating a berry

d. A student eating a hamburger