Interactions of Living Things

The Environment1.) Ecology is the study of the interactions

between organisms and their environment.

Two PartsBiotic

LivingAll organisms

6 Kingdoms-animals-plants-fungi-protists-eubacteria-archaebacteria

Abiotic

NonlivingEverything else

-Temperature-Air-Water-Soil-Light

An Organized Environment

2. An individual organism is the basic level of life.

3. A population is a group of organisms of the same species living in a specific area (all of one species).

4. A community is made of all the populations of different species in a given area. (Only all the biotic factors).

5. An ecosystem is made of a community of organisms and its abiotic factors (biotic and abiotic).

How do they get their energy?

6. Producers – carryout the process of photosynthesis and make their own food

7. Decomposers – break down the remains of dead organisms to obtain nutrients

8. Consumers – eat other organisms. There are 4 types:A. 9.)A herbivore only eats plants.B. 10.) A carnivore only eats animals.C. 11.) An omnivore eats both plants and animals.D. 12.) A scavenger eats the bodies of dead animals.

Environmental Organization Quiz1. All the biotic and abiotic factors in a given

area is known as __________.

2. Organisms that only eat animals are ________.

3. The study of the interactions between organisms and their environment is ________.

4. Organisms that eat both plants and animals are ________.

5. Organisms that only eat plants are ________.

ecosystem

carnivores

ecology

omnivores

herbivores

Limiting Factors PowerPoint

Limiting Factors.ppt"Nature Works“ Website http://www.nhptv.org/natureworks/nwep12a.htm

GREAT review video - http://www.youtube.com/watch?v=Q7htrA8JVrg

The Food Chain13. The food chain is

a representation of how energy flows from one organism to the next.

The arrows represent the flow of energy.

They do not represent what eats what.

The Food Web14. The food web is a representation of overlapping food chains.

FOOD

CHAINS

Energy Pyramids#15. An energy pyramid is a representation of how energy is consumed as it moves through the food chain or food web.

As you move up the pyramid, a smaller amount of energy is transferred.

The largest part of energy is located at the base of the pyramid with the producers.

Where do we belong?

#16a An organism’s habitat is the environment in which it lives.

#16b An organism’s way of life or role in the ecosystem is its niche. It includes the organism’s habitat, food, predators and competition.

Types of Interactions#17 Predators/Prey1. Prey is the organism that is eaten. (fish)2. The predator is the organism that eats

the prey. (alligator)

Many times the predator becomes the prey and the prey becomes the predator. Think back to the food web for examples.

#18 Symbiosis (ppt) is a close, long-term association between two or more organisms.

There are three types of symbiosis:1. Mutualism is when both organisms

benefit from the association.

2. Commensalism is when one organism benefits and the other is unaffected.

3. Parasitism is when one organism is helped and the other is harmed.

shark with remora

lichen

flea