5.2 CompetitionUnit 5: Behavior and Interdependence of Organisms

REVIEW NOW:1. For DNA sequence, (a) write the complementary RNA seq.(b) translate the RNA sequence into a chain of amino acids.DNA sequence: TAC ATG GGA CGTRNA sequence: ______ ______ ______ ______Amino Acids: _______ _______ _______ _______2. The mitochondria is responsible for doing ____ in the cell?

a. Making proteins c. Generating energy (ATP)b. Transforming sunlight into sugar d. Disposing of waste

3. The role of the chloroplast in plant cells is to…?a. Making proteins c. Generating energy (ATP)b. Transforming sunlight into sugar d. Disposing of waste

ENGAGE:1. What is something you found interesting in either of the videos today?

2. What do you think the plants are competing for in video 1? What about the cheetahs in video 2?

3. How do you think these two videos are related? How are they different?

https://www.youtube.com/watch?v=H9MV5CgPgIQ http://bit.ly/1HeeeBn

READING: “Compete or Die”• ANNOTATIONS:

1. Read the QUESTIONS FIRST2. CIRCLE the key words in the question3. THEN read the paragraphs above4. UNDERLINE information that answers question

• 8 Minutes • Read ALL paragraphs• Answer C1 – C3

• SILENT • To RESPECT our peers reading needs• 1st time talking: warning, 2nd time: out in hall

C3. List the 6 types of competition and write a short description of what that competition “looks like:”

TYPE OF COMPETITION BRIEF DESCRIPTION

ACTIVITY: Expectations•2 minutes – READ PROCEDURES

•We will be going outside for this activity

•While outside:• Listen to ALL Instructions• Follow ALL Instructions promptly

• It is essential that you DO NOT CHANGE your resource once the activity round has begun.

ACTIVITY: Analysis•Return to your seat•COPY DATA in your Data Table•Answer Questions A1 – A9•GRAPH your data

•Make sure to answer A6 – A9 in COMPLETE SENTENCES, Minimum of 2 sentences per question

NOTES: Expectations• You just had 20 minutes of talk time during the activity

• NOW it is Ms. Grether’s talk time

• Please be RESPECTFUL and…

• LISTEN closely – silent during notes, raise hand if you have questions•WRITE NOTES - underlined on the slide, goes in blank in

notes

NOTES:• Organisms compete for

RESOURCES in order to survive and reproduce.

• Resources to compete for: food, water, space, shelter, and mates.

3 Main Types of Competition1. Within a species (Intraspecific)• “survival of the fittest”• In a population, weak organisms compete against stronger

members• Competition for food, mates, etc. • (What else might organisms compete for?)

3 Main Types of Competition2. Across species (Interspecific)• TWO (or more) species that require (or seek) the SAME

resource

3 Main Types of Competition3. Predator – Prey• One organism feeds on another organism• Population changes follow each other

INDEPENDENT PRACTICE

Work on your questions until the

bell rings. If you finish early, I will check it for you.

EXIT TICKET:1. Why do organisms compete?

a. To survive longer c. To survive and reproduceb. To obtain every resource d. To make enemies

2. Which of the following statements is true of all organisms in every environment?c. They must compete for essential resourcesd. They are able to produce their own foode. They must consume other organisms for energyf. They avoid interactions as much as possible

3. The graph below shows the changes in the size of a population over a period of time. Which environmental condition could have caused the change in the population size at A?

g. an increase in competitionh. a decrease in the size of its predators i. a constant availability of shelterj. an unlimited supply of its food