PowerPointDifferentiated Unit 4 Week 1Group A

Mr. Smet’s Scientific Studies

This Power Point presentation has been made to walk you through the worksheet. It will answer a short number of the questions from your packet but also go through the key points of answering the other questions with examples.

Work with urgency!

How this works

Section 1Symbiotic Relationships Review

Section 1Directions

Read through the following slides to refresh your memory of symbiotic relationships. Write down the definitions of each of the terms in Part 1 of your packet.

Note: Pay close attention to the descriptions of these relationships. It is very important to recognize when something is benefitted, when something is unaffected, and when something is harmed.

Predator/PreyDefinition: Any interaction in

which one organism consumes another.

Example: Lions hunt for hyenas,their food.

CompetitionDefinition: Two species are hurtful to each other because they need

the same resource, but there is not enough.

Example: In forests, all plants need

sunlight to grow and they compete for it.

The tallest trees “win” this

competition.

SymbiosisDefinition: Any interaction in which two organisms live together.

There are three types:• Commensalism• Mutualism• Parasitism

MutualismDefinition: A symbiotic relationship

in which both species

benefit is called

mutualism.

This little fish is helping me by cleaning my teeth!!! Yeah!!!

I’m eating the big fish’s food so he’s helping me too! Yeah!!!

Commensalism Definition:A symbiotic

relationship in which one

species benefits and the other

species is neither harmed nor benefited.

Example: In this picture, Spanish moss isgrowing on the trees. The moss benefits because it has a place to live, and the tree doesn’t care.

Parasitism Some interactions are harmful

to one species, yet beneficial to another.

Definition: A member of one species benefits by living inside another, which is harmed is called parasitism.

Section 2Classifying Relationships in Videos

Section 2Classifying Relationships in Videos #1

During this section you will use the definitions that you wrote in Part 1 to answer four questions about each of 6 videos that you are about to watch.

You will be watching six videos that describe symbiotic relationships (mutualism, commensalism, and parasitism– not predator/prey or competition.)

Section 2Classifying Relationships in Videos #2Directions: Answer the questions

in your packet using the videos linked from the following slides. The

first video will be used as an example. It describes two symbiotic relationships and both are described

in your packet to answer the questions.

Section 2Classifying Relationships in Videos #3

Video 1: “Ant and Butterfly Symbiosis”Click HereVideo 2: “Fish Symbiosis”Click HereVideo 3: “Jean-Michel Cousteau: Ocean AdventuresClick HereVideo 4: “Acacia Ants”Click HereVideo 5: “Clownfish and Sea Anemone Partnership”Click HereVideo 6: “Bed Bugs”Click Here

Section 3Classifying Relationships in Text

Section 3Classifying Relationships in Text #1 During this section you will answer the

same questions as you did in the last section, but this time you will be using text instead of videos.

You will be reading two descriptions of symbiotic relationships (mutualism, commensalism, and parasitism– not predator/prey or competition.)

Section 3Classifying Relationships in Text #2 At this time, you may begin working

through questions 1-4 for each of the descriptions in A and B.