Transcript Lesson Review

AIM: How does life continue?
•Define the types of reproduction
•Define the term offspring
AIM: How does life continue?
reproduction,
asexual reproduction,
sexual reproduction,
offspring, Fission, budding
Why is reproduction important?
• Keeps the species going
• produces more of the species
• insures that life continues
What is an offspring?
• something a living thing
produces to ensure the
survival of its species
• baby of a parent
• A seed
MALE
FEMALE
What type of reproduction occurs here?
MALE PARTS
FEMALE PARTS
Asexual Reproduction involves the
reproduction of one-celled organisms:
•Bacteria
•Yeasts
•Amoeba
Two Cells produced of “equal” size, both
much smaller then the original.
What happens next?
Eventually both cells grow into a full size
original.
And the reproduction process begins all
over again.
A bud, or node, begins
to form
The bud begins to
separate from the rest
of the cell.
The bud is now a separate cell,
and a fraction of the size of the
original parent
Gradually the new cell grows and
grows until …
The offspring is the same size
as the original
Reproduction:
Process by which living things
produce new organisms like
themselves
Offspring:
New organisms produced by a
living thing
Sexual
Reproduction:
Reproduction needing two parents.
Whose offspring has a genetic code
which is a mixture of both parents
asexual
Reproduction:
Reproduction needing one parents.
Whose offspring has a genetic code
which is identical to the parent.
Reproduction
SEXUAL
• 2 parents
• 2 sets of DNA
• offspring not
identical to
parents
•
•
•
•
•
ASEXUAL
1 parent
1 set of DNA
offspring exactly
identical to the
parent
fission or budding
yeast, bacteria
•Differentiate the two types of reproduction
•Define reproduction
•Define the term offspring
AIM: How does life continue?
Class Activity:
Worksheets: 2-5
What are the ramifications of cloning ?
AIM: How does life continue?
Homework:
INTERNET QUESTIONS
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