1. Topic #2: Habitat and Lifestyle
What is a Niche?
Where and organism LIVES and what it DOES
Examples:
A poplar tree living in the mountains in Banff. What is its role?

2. Beavers living in a Beaver Dam

3. Broad Niches and Generalists
Why do Canadian ecosystems lack diversity but support high numbers of species?

4. Narrow Niches and Specialists
Why in the Tropics are there many types of species but low populations of each species?

5. Symbiotic Relationships
Commensalism – one species benefits the other does not
Mutualism – both species benefit
Parasitism – one species benefits while the other is harmes

6. Vocabulary: Lets Review: Environment Competition Variation Ecosystem
Symbiotic Relationship
Broad Niche
Generalists
Specialists
Narrow Niches
Specialization
Specialization Trap

7. Topic #3: Passing it On
Everywhere you look you see organisms that look like their parents. How are these characteristics passed on from generation to generation?

8. Reproduction There are two types of reproduction: Sexual Asexual
Both are reproductive strategies designed to pass on the most heritable/inherited characteristics on order for a species to thrive

9. Examples of Asexual Reproduction
Binary Fission – common in single cell organisms (Amoeba) The cell first duplicates its contents then splits with identical contents

10. 2. Asexual Spores – Common in fungi where they produce single celled reproductive structures called spores

11. 3. Vegetative Reproduction – The growing tips of roots and stems contain areas of rapidly reproducing cells called meristems.

12. 4. Budding – common in sea sponges, hydra where a cell near the base of one of these organisms produces a new group of cells called a “bud” which will eventually detach itself and become independant

13. Sexual Reproduction
Occurs when two parents supply the genetic material for the offspring(by combining)
As a result each new offspring will look different

14. Best of Both Worlds
Some plants and animals are able to reproduce both sexually and asexually
Examples: Zygospores produce asexually by producing spores yet contain genetic material from 2 different sources

15. Bacterial Conjugation
Bacteria transfer genetic material from one parent to another but do NOT produce new cells.
New cells are produced later by binary fission
Why is this beneficial?

16. Review http://www.youtube.com/watch?v=tWfgpHKP0_4

17. Sexual Reproduction in Animals

18. Internal Sexual Fertilization
Benefits:
Drawbacks:

19. External Fertilization
Benefits
Drawbacks

20. Sexual Reproduction in Plants

21. Bread Mould
Why does Bread Mould?

22. Bread Mould Reproduction

23. Mould Life Cycle