1. Chapter 16 & 17 in your Holt Biology textbook
Unit 11-Ecology
Chapter 16 & 17 in your Holt Biology textbook

2. Ecology - Study of interactions between organisms and environment
Population – same species, living together
Community – several populations, living together
Ecosystem - abiotic & biotic components of an area

3. Biotic factors – all of the living things in a habitat
Abiotic factors – all of the non-living things
in a habitat
Soil
Water
Weather

4. Habitat – where a population lives
Niche – function of a species in its community (its job)
What are 4 things must all habitats provide?
Come up with 4 on your own
Then pair up with someone near you and compare your answers

5. Energy in an Ecosystem
Producers – plants; produce energy by photosynthesis
Consumers – eat to obtain energy

6. Herbivores- Carnivores – Omnivores – Detritivores– Decomposers –
The Consumers
Herbivores-
Carnivores –
Omnivores –
Detritivores–
Decomposers –
eat plants
eat animals
eat plants and animals
feed on dead plants and animals (vultures*, worms, bacteria, fungi)
breaks down organic matter from
dead organisms (bacteria and fungi)

7. Consumer Map Create a tree map in your journal
Under each type of consumer list each characteristic they have
___________
___________
___________
___________
___________

8. T. Trimpe 2008 http://sciencespot.net/
Ecology Basics
Challenge #1 Habitats
T. Trimpe

9. Answer each question.
1. What do we call the place where an organism lives?
2. What four things does a good habitat provide?
3. What are two biotic factors in the habitat of a field mouse?
4. Why do you find different kinds of organisms in different habitats?

10. The answers are …
1. What do we call the place where an organism lives?
2. What four things does a good habitat provide?
3. What are two biotic factors in the habitat of a field mouse?
4. Why do you find different kinds of organisms in different habitats?
Habitat
Food, water, shelter, and space
Grass or other plants, insects, snakes, gophers, hawks, owls
Different organisms need different things to survive. Some organisms can survive in a desert, but others cannot.

11. Challenge #2 Levels of Organization
Ecology Basics
Challenge #2 Levels of Organization
T. Trimpe

12. Community, Organism, Ecosystem, Population
Answer each question.
1. What term refers to all the members of one species in a particular area?
2. What do we call all the different populations that live in an area?
3. What term refers to all the living and nonliving things that interact in an area?
4. Organize these terms from the smallest to the largest.
Community, Organism, Ecosystem, Population
5. What do we call a scientist who studies how living things interact with each other and their environment?

13. The answers are …
1. What term refers to all the members of one species in a particular area?
2. What do we call all the different populations that live in an area?
3. What term refers to all the living and nonliving things that interact in an area?
4. Organize these terms from the smallest to the largest.
Community, Organism, Ecosystem, Population
5. What do we call a scientist who studies how living things interact with each other and their environment?
Population
Community
Ecosystem
Organism  Population  Community  Ecosystem
Ecologist