1. Aim: Describe what ecosystems consist of.
Topic: Ecology
Aim: Describe what ecosystems consist of.
(Write the topic and aim on the top of your ecology definitions)
Do Now: Ditto- Evolution Review. Complete #1
HW: Food Chains Reading notes due tomorrow
CL Evolution due Wednesday

2. Describe how this diagram represents evidence for evolution.
Describe how this diagram represents evidence for evolution.
Different species that have similarities in embryological development MAY have evolved from a common ancestor.

3. Identify the sources of variation within a species.
Mutations
Sexual reproduction
Selective breeding
Genetic engineering
2. Describe the importance of variation within a species.
Very little variation in a species can lead to extinction of that species if there is a major environmental change.

4. Identify the process is represented by the diagram.
photosynthesis
2. Identify the raw materials needed for this process to occur.
water and carbon dioxide
3. Identify the substance that is needed to produce energy.
glucose

5. A B C D Identify the responses represented above. TROPISMS
2. Identify the chemical responsible for these responses.
AUXINS
3. Identify the name of each response.

6. Branch of biology that deals with the interactions among organisms and their environment
Ecology

7. Biotic Factors
All LIVING organisms in the environment

8. Abiotic Factors NONLIVING factors in the environment
H2O, O2, light, temperature, soil, nutrients

9. All biotic & abiotic factors in an environment
Ecosystem

11. Organisms that belong to the SAME SPECIES in a given area
Example: All the algae in the pond
Population

14. Community All the living things (populations) in a given area
Example: All the fish, frogs, plants, algae in a pond

16. Types of Organisms

17. Producers
Autotrophs
Ex: Plants, algae

18. carbon dioxide from the air
water from
the roots
energy from
sunlight
(or light)
food
transported to the
rest of the plant

19. Heterotrophs
Consumers

20. Herbivores = feed on producers
Types of Consumers

22. Carnivores = feed on animals (meat eating)

23. Predators = consumers that kill prey & feeds on them

24. Scavengers = consumers that feed on dead animals they find
Ex: vultures

25. Omnivores = consumers that eat plants & animals

26. Decomposers = break down and consume remains of dead organisms and return nutrients into soil
Ex: bacteria and fungi

29. Where an organism lives
Organism’s “address”
Habitat

30. Niche The role of a species in the environment
Ex: how, when, or way they obtain nutrients, its reproductive behavior
Niche

32. Niches of a sunflower growing in the backyard
Absorb light, water and minerals
Provide shelter and food for other organisms (e.g. bees, ants, etc.)
Release oxygen into the atmosphere

34. 2 organisms occupying the same niche
Competition

35. Let’s summarize…
Explain the difference between biotic and abiotic factors.
Explain the difference between a population and a community.
3. Explain what an ecosystem consists of.
4. Explain the difference between a producer and a consumer.
5. Identify different types of consumers.
6. Explain the importance of decomposers.