1. PowerPoint Differentiated Unit 4 Week 1
Group B
Mr. Smet’s Scientific Studies

2. How this works
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!

3. Symbiotic Relationships Review
Section 1
Symbiotic Relationships Review

4. Section 1 Directions
Read through the following slides to refresh your memory of symbiotic relationships.
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.

5. Definition: Any interaction in which one organism consumes another.
Predator/Prey
Definition: Any interaction in which one organism consumes another.
Example: Lions hunt for hyenas,
their food.

6. Competition
Definition: 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.

7. Symbiosis
Definition: Any interaction in which two organisms live together.
There are three types:
Commensalism
Mutualism
Parasitism

8. Section 2.1 Summary – pages 35 - 45
This little fish is helping me by cleaning my teeth!!! Yeah!!!
Mutualism
Definition:
A symbiotic relationship in which both species benefit is called mutualism.
I’m eating the big fish’s food so he’s helping me too! Yeah!!!
Section 2.1 Summary – pages

9. Section 2.1 Summary – pages 35 - 45
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 is
growing on the trees. The moss
benefits because it has a place
to live, and the tree doesn’t care.
Section 2.1 Summary – pages

10. Section 2.1 Summary – pages 35 - 45
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 2.1 Summary – pages

11. Adaptations Adaptations are changes in a body to fit a location.
These adaptations help species because they are allow the species to specialize in some way that will allow it to survive in an area.
In mutualistic relationships, both species have an adaptation that allow them to work together.

12. Classifying Relationships in Videos
Section 2
Classifying Relationships in Videos

13. Section 2 Classifying Relationships in Videos #1
During this section you will begin writing in your packet.
You will be watching three videos that describe symbiotic relationships (mutualism, commensalism, and parasitism– not predator/prey or competition.)

14. Section 2 Classifying Relationships in Videos #2
Directions: 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.

15. Section 2 Classifying Relationships in Videos #3
Video 1: “Ant and Butterfly Symbiosis” Click Here Video 2: “Bed Bugs” Video 3: “Jean-Michel Cousteau: Ocean Adventures

16. Classifying Relationships in Text
Section 3
Classifying Relationships in Text

17. Section 3 Classifying 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 five descriptions of symbiotic relationships (mutualism, commensalism, and parasitism– not predator/prey or competition.)

18. Section 3 Classifying Relationships in Text #2
At this time, you may begin working through questions 1-4 for each of the descriptions in A-E.