Download FOCUS QUESTION: How and why do organisms reproduce

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Living Environment:
Nature’s Sustainable Design
FOCUS QUESTION: How and why do
organisms reproduce asexually?
Today’s Objective:
Topic 3.1
Asexual Reproduction
Today’s Plan:
1.
2.
3.
4.
5.
Warm Up (3 min)
Cell Cycle Review
Note Taking
Asexual Reproduction JIGSAW
Exit Slip (5 min)
Understand how some organisms
use the cell cycle to reproduce,
and investigate some types of
asexual reproduction.
2
Cell Cycle Review
• Directions: With your group, review the Cell Cycle
image below and then answer the questions that
follows.
Cell Cycle Review
1. In your own words, what is the goal of
the cell cycle?
2. Why do you think it would be important
for cells to go through the cell cycle?
Note Taking
1. Each species on Earth must reproduce in
order to maintain its existence. If they did
not reproduce, the species would go
extinct.
2. Multicellular Organisms
Cell division is used for:
• Growth
• Maintaining the body
3. Unicellular Organisms
Cell division is used for
• reproduction
4. Asexual Reproduction
ONE parent gives rise to a single,
genetically identical offspring (daughter
cell)
Asexual Reproduction JIGSAW
• INTRODUCTION
Asexual Reproduction JIGSAW
• Directions: Each member of your group will be
assigned a reading: A, B, C, or D. The person
assigned to each reading will read about a
particular TYPE OF asexual reproduction and
become an expert on that subject. Then, that
person will present what they have learned to their
group members.
1
2
3
4
ALL NUMBER
2s to the front
of the room!
Asexual Reproduction JIGSAW
1: ABudding
2: B- Binary
Fission
3: CVegetative
Propagation
4- DParthenoge
nesis
Asexual Reproduction JIGSAW
JIGSAW SHARE OUT:
• Each member will read their notes about the types
of asexual reproduction to their group.
• The group will take notes from what each person
presents. NO COPYING NOTES FROM PAPERS!!
1: ABudding
2: B- Binary
Fission
3: CVegetative
Propagation
4- DParthenoge
nesis
CLASS DISCUSSION
Analysis Questions:
1. Why would an organism reproduce asexually?
What are the advantages?
2. Do most animals reproduce sexually or asexually?
How do you know?
This stopwatch is timing how long it takes you to
get ready. It will stop after everyone
- has completed a warm up
- has their binder in front of them
- has today’s work
- is sitting in their assigned seat
- has given 3 seconds of silence.
Your class will gain points based on how
quickly this happens.
Exit Slip (5 min)
1. Return to your assigned seat
2. Complete the exit slip
3. Clean up your workstation
4. Secure all handouts in your binder
5. Put your binder away.
1. How many parents are needed to
perform asexual reproduction?
2. What is one advantage of asexual
reproduction?