1. The continuity of life…
REPRODUCTION
The continuity of life…

2. What Is Reproduction?
Reproduction is the process by which organisms _________ _____of their own kind…can be sexually or asexually
Think about it…Without it…all life on earth would _______ ___ _______!

3. ASEXUAL VS SEXUAL Asexual REPRODUCTION SEXUAL REPRODUCTION ASEXUAL
Characteristic
Requires ONE parent.
NO sex cells,
NO fertilization
Advantage/Disadvantage
Do NOT have to find mate
Offspring have NO variation
Offspring are genetically identical to parent cell
SEXUAL
Characteristics
Requires TWO parents
Involves TWO sex cells
Requires fertilization
Advantages/Disadvantages
Requires mate
Offspring have variation
Offspring are NOT genetically the same
Offspring are combination of BOTH parents

4. Types of Asexual Reproduction
Binary Fission…
Budding…
Spore production
Regeneration
Propagation
Vegetative
Artificial
Parthenogenesis

5. 1. ____________ _________…
The _______ divides by __________ and the cytoplasm divides, forming ____ new daughter cells of _________ size.
Occurs in ________ celled organisms
…bacteria, protists…amoeba, paramecium

6. 2. ____________…
The division of cytoplasm is __________ so one of the daughter cells is _________ than the other.
The daughter cells can ___________ or ________ ___________.

7. Budding… New Organisms Arise as an Outgrowth from the Parent Organism
Seen Mostly in _______ Animals
Examples Include; Sponges, Corals and Jellyfish…
Also seen in ________ and Hydra
Coral Polyp Photo courtesy Jeffrey N. Jeffords

8. 3. ________________…
________ are produced in large numbers by _________.
Spores are surrounded by a tough coat to help them _________ harsh environmental conditions.
Seen in ___________, ________…mushrooms, molds

9. 4. __________________…
This refers to the ability of some animals to __________ severed parts.
Some of these animals can also grow ______ organisms from the ___________ pieces
Segmented Worms and Sea Stars

10. 5. _________________ ________________
New plants develop from the ________,
________, or _________ of the parent plant.
Three Types
Tubers
Bulbs
runners

11. ____________
Tubers are _________ food stores which _______ food over the winter and provides a ____ plant with food until it can make its own.
Examples: potato, artichoke, yam, water chestnut, arrowroot
Tuber info from
Taro- Japanese potato
Food made by the new plant is sent to make new tubers. Thereby reproducing itself.

12. ____________
E.g. __________, _________

13. __________
Runners are ______ _____ which grow out from the ________ plant.
_______ form at points along the runner and eventually these buds form roots and grow into ______ plants.
Examples: spider plant (Anthericum), ________ (Fragaria x ananassa)

14. Propagation _____________
With plants, but with __________ intervention
Two main types
Cuttings
Grafting

15. ___________ They can be placed in moist soil or water (and sometimes
Cuttings are _______ pieces of stem with some ______ attached, the new plant grows from this.
SQA- Describe ways of propagating flowering plants artificially by cuttings and graftings
Source
counties.cce.cornell.edu/.../propagation.htm
They can be placed in moist
soil or water (and sometimes
dipped in rooting
powder).

16. _________
A cut ______ of one plant (with good flower or fruit growth) (the graft) is taken and firmly _________ to the rootstock of another plant (which has a strong, established root system) (the stock).
Examples- _______, fruit trees

17. 6. _________________… _________ can arise from __________ eggs.
Includes _______ Fish, Reptiles, Amphibians and Aphids.
Most of these species can ________ between Sexual and Asexual Reproduction.
(depending on conditions)