Ecosystems Engage Class Activity EPISD Standards Based Curriculum

8.11A describe producer/consumer, predator/prey, and parasite/host relationships as they occur in food webs within marine, freshwater, and terrestrial ecosystems EPISD Standards Based Curriculum

RELATIONSHIPS IN A MARINE ECOSYSTEM EPISD Standards Based Curriculum

Marine Ecosystem scifair.ednet.ns.ca EPISD Standards Based Curriculum

A Coral Reef Community in a Marine Ecosystem EPISD Standards Based Curriculum

A Coral Reef Food Web EPISD Standards Based Curriculum

Marine Ecosystem en-eggs-spam6-rant EPISD Standards Based Curriculum

RELATIONSHIPS IN A TERRESTRIAL ECOSYSTEM EPISD Standards Based Curriculum

EPISD Standards Based Curriculum

Terrestrial Ecosystem k html EPISD Standards Based Curriculum hiltonpond.org

A Grassland Community (Terrestrial) EPISD Standards Based Curriculum

Grassland Food Web EPISD Standards Based Curriculum

RELATIONSHIPS IN A FRESHWATER ECOSYSTEM EPISD Standards Based Curriculum

Freshwater Ecosystem www: ecostudies.org EPISD Standards Based Curriculum

Freshwater Ecosystem freshwaterlife.org EPISD Standards Based Curriculum

Pond Community in a Freshwater Ecosystem EPISD Standards Based Curriculum

Pond Food Web EPISD Standards Based Curriculum

arkive.org EPISD Standards Based Curriculum

Terrestrial Ecosystem A terrestrial ecosystem is an ecosystem found only on a landform. It is a community of organisms and their environment that occurs on the land masses of continents and islands. EPISD Standards Based Curriculum

Marine Ecosystem Marine ecosystems are among the largest of Earth's aquatic ecosystems. Marine waters cover two-thirds of the surface of the Earth. Such places are considered ecosystems because the plant life supports the animal life and vice-versa. They can be contrasted with freshwater ecosystems, which have a lower salt content. EPISD Standards Based Curriculum

Freshwater ecosystem Freshwater ecosystems are a subset of Earth's aquatic ecosystems. They can be contrasted with marine ecosystems, which have a higher salt content. Freshwater habitats can be classified by different factors, including temperature, light penetration, and vegetation. EPISD Standards Based Curriculum

Relationship Predator- an organism that is hunting and feeds on prey. Prey- the organism that is being hunted and fed upon. EPISD Standards Based Curriculum predator

Relationship Producer- a living organism that can make its own food. Consumer- an organisms that gets its food from eating other living things, in order to have enough energy to survive and reproduce. EPISD Standards Based Curriculum consumer producer

Relationship Parasite- an organism that benefits at the expense of the other organism. Host- an organism that harbors a parasite providing nourishment and shelter. EPISD Standards Based Curriculum hostparasite

8.11B investigate how organisms and populations in an ecosystem depend on and may compete for biotic and abiotic factors such as quantity of light, water, range of temperatures, or soil composition EPISD Standards Based Curriculum

Organisms & Populations Organism – a living thing. Examples: plants, fish, bacteria, etc. (pg. 74 – ScienceSaurus) Population – all of the organisms of the same species that live in the same place at the same time. Example: a penguin population in Antarctica (pg. 130 – ScienceSaurus) EPISD Standards Based Curriculum

Biotic & Abiotic Factors in an Ecosystem Biotic – all of the living factors in an ecosystem. Example: A Pine forest ecosystem has pine trees, deer, owls, raccoon, mice, bacteria, turtles and ferns all living and interacting with each other as well as the abiotic factors. (pg. 130 – ScienceSaurus) Abiotic – all of the non-living factors in an ecosytesm. Example: A Pine Forest ecosystem has rocks, air, sunlight and water that help the biotic factors survive. (pg. 130 – ScienceSaurus) EPISD Standards Based Curriculum

Competition & Dependence Competition – occurs when more than one organism or population tries to make use of the same limited resource. Example: a larger wolf usually will take away food from a smaller wolf, since their food source is limited (pg. 132 – ScienceSaurus) Dependence – occurs when organisms and populations rely on limiting factors, such as food, water, light and living space (pg. 131 – ScienceSaurus) EPISD Standards Based Curriculum

Community Community – populations living in the same area with other populations. Example: the lizard population shares the same environment with the mesquite, bacteria, snakes, etc. (pg. 130 – ScienceSaurus) EPISD Standards Based Curriculum

1.__________ depends on _________ for _______ which is a biotic factor. 2.__________ depends on _________ for _______ which is an abiotic factor. 3.__________ competes with _________ for _______ which is a biotic factor. 4.__________ competes with _________ for _______ which is an abiotic factor. 5.If _______ was removed from the food web ______population would increase and ________ population would decrease. EPISD Standards Based Curriculum