Topic: Reproduction
Aim: Describe the processes of fertilization.
Do Now: Take out your Fertilization and
Development ISA
Work on the Infectious and Non-Infectious
Diseases ISA
HW: Finish Infectious and Non-Infectious
Diseases ISA
Castle Learning Skeletal, Muscular and Immune
Systems due Tuesday
1. Identify the type of
asexual reproduction
represented in the diagram.
ASEXUAL REPRO
2. Describe the offspring of
this process.
OFFSPRING
GENETICALLY IDENTICAL
TO PARENTS
3. Identify organisms that use
this process.
YEAST, HYDRA
1. Identify the type of asexual reproduction
represented in the diagram.
BINARY FISSION
2. Describe the offspring of this process.
OFFSPRING GENETICALLY IDENTICAL TO PARENT
3. Identify organisms that use this process.
PARAMECIA, AMEBA, BACTERIA
1. Identify the type of asexual reproduction
represented in the diagram. REGENERATION
2. Describe the offspring of this process.
OFFSPRING GENETICALLY IDENTICAL TO PARENT
3. Identify organisms that use this process.
STARFISH, LIZARDS, WORMS
1. Identify the type of asexual reproduction
represented in the diagram. sporulation
2. Describe the offspring of this process.
OFFSPRING GENETICALLY IDENTICAL TO PARENT
3. Identify organisms that use this process.
FUNGI
1. Identify the type of asexual reproduction
represented in the diagram. VEGETATIVE
PROPAGATION
2. Describe the offspring of this process.
OFFSPRING GENETICALLY IDENTICAL TO PARENT
3. Identify organisms that use this process.
PLANTS
Fertilization
http://www.youtube.com/watch?v=9MnQxiSJZ4Q
• Sperm
joins an
egg cell.
• Fallopian tube (OVIDUCT)
Where
does
fertilization
usually
occur?
Fertilized • Zygote
egg
Sperm + Egg
Zygote
# of
• 46
chromosomes
in a human
zygote
Sperm + Egg
23
23
Zygote
46
Identical Twins
• Egg fertilized
External
OUTSIDE female
Fertilization
• Aquatic organisms
(fish)
• Large # of
eggs and sperm
released
• To increase
chance of
fertilization
https://www.youtube.com/watch?v=q50Yphp1gzI
Coral: release egg & sperm at the
same time
• Fertilization INSIDE
Internal
female
Fertilization
• Terrestrial (land)
organisms
• Fewer eggs needed bc well
protected
The reproductive strategies of
fishes are varied. Sharks
reproduce through internal
fertilization and many shark
species give birth to live
young. Sharks that lay eggs
produce large, tough
shelled egg sacs often
referred to as "mermaid's
purses." Both sharks that
give birth to live young and
those that lay eggs produce
relatively small numbers of
young making it more
important to preserve those
species that are becoming
overfished.
Dolphins use internal
fertilization.
Dolphin mothers usually go to
shallow waters to deliver the
calves.
Usually a single calf is born,
which is nursed for around 18
months with milk from the
mother.
Calves live close to their
mothers for around 6 years.
Let’s summarize…
1. Describe fertilization.
When a sperm cell and an egg cell join.
2. Identify the name of a fertilized egg.
Zygote
3. How many chromosomes are found in a human
zygote? Support your answer.
Human zygote contains 46 chromosomes.
Each gamete contributes 23 chromosomes.
4. Contrast external and internal fertilization. In
regards to:
a. Where it occurs
External  outside the female
Internal  inside the female
b. Type of organisms that use it
External  aquatic organisms
Internal  terrestrial organisms
c. # of eggs released
External  MANY eggs released
Internal  FEWER eggs released
1. Identify the type of cells sperm and egg cells are.
GAMETES
2. Identify the type of cell division that is used to produce
these cells.
MEIOSIS
3. Where are these cells produced?
GONADS
1.
2.
3.
4.
5.
Identify all labeled structures in the diagram.
Identify the structure where the embryo develops.
Where can an egg be fertilized?
Which structure releases eggs?
Identify the hormones structure A secretes.
A
B
C
D
E
1. Identify the process represented in the diagram above.
Support your answer.
2. If the first cell is made up of 32 chromosomes, how many
chromosomes are found in the daughter cells?
3. Identify the types of cells produced by this process.
4. Identify the type of reproduction involved.
Locomotion Review
1. Thick, smooth layer of tissue that covers the ends of
bones. CARTILAGE
TENDONS
2. Thick bands of tissue that attach muscles to bones.
3. Any place where two bones meet. JOINTS
4. Tough bands of tissue that hold bones together.
LIGAMENTS
5. A tissue that relaxes and contracts. MUSCLE
6. Involuntary muscles in the digestive system. SMOOTH
7. Part of the bone that produces blood cells. BONE
MARROW
8. Involuntary muscle found only in the heart. CARDIAC
9. Gland that regulates calcium metabolism.
PARATHYROID
10. Gives the body shape. SKELETON
11. Bones that protect the spinal cord. VERTEBRAE
12. Part of the bone that stores fat. YELLOW MARROW
13. Also known as voluntary muscles. SKELETAL
PITUIARY
14. The gland that stimulates the elongation of bones.
15. One of the minerals that keep bones strong. CALCIUM
16. Bones that protect the brain. CRANIUM
17. Bones that protect the lungs. RIB CAGE
18. One of the strongest bones in the body. Also known as
the thigh bone. FEMUR
19. Bones that make up your fingers and toes.PHALANGES
20. Type of tissue that makes up your bones, muscles,
ligaments and tendons. CONNECTIVE
B
A
1. Identify processes A
and B. Support your
answer.
2. Identify the type of
reproduction each
process is involved in.
3. Identify the type of
cells produced in each
process.
4. Identify what occurs
to the # of
chromosomes in each
process.
B
A
1. Identify processes A
and B. Support your
answer.
A – Meiosis
4 daughter cells
B – Mitosis
2 daughter cells
2. Identify the type of
reproduction each
process is involved in.
A – Sexual repro
B – Asexual repro
3. Identify the type of
cells produced in each
process.
A – Gametes
B – Somatic cells
4. Identify what occurs to
the # of chromosomes in
each process.
B
A
A – Chromosome #
splits in half
B – Chromosome #
stays the same