1. Date Session # Activity Page #
Objective: Interpret various text to describe ecosystems and organisms’ roles in those ecosystems using biotic and abiotic components.
Date
Session #
Activity
Page #
4/25-26
Components of an Ecosystem 5
Ocean Ecosystems 6
Habitat & Niche 7
Homework:
Complete ecosystem & niche tables
EOG review packet: Chem Unit question 6-10

2. 8.L.3 Understand how organisms interact with and respond to the biotic and abiotic components of their environment
8.L.3.1 Explain how factors such as food, water, shelter, and space affect populations in an ecosystem.
8.E.1.Understand the hydrosphere and the impact of humans on local systems and the effects of the hydrosphere on humans.
8.E.1.2 Summarize evidence that earth’s oceans are a reservoir of nutrients, minerals, dissolved gases and life forms:
Estuaries
Marine ecosystems
Upwelling
Behavior of gases in the marine environment
Deep ocean technology and understandings gained.

3. Biotic and Abiotic Environment
Biosphereecosystem  community  population  individual

4. Components of an Ecosystem
Ecosystem a system formed by the interaction of a community of organisms with their environment. This includes biotic and abiotic factors in the environment
Community
Community all the populations that live in an area at the same time
Population
Population
all the
organisms of a species that
live in the same place at the
same time.
Population
Individuals

5. Biosphere: all the ecosystems on earth
Ecosystem: a system formed by the interaction of a community of organisms with their environment. This includes biotic and abiotic factors in the environment

6. Community: all the populations that live in an area at the same time
Population: all the organisms of a species that live in the same place at the same time. They can be described based on their size, distribution or density.
species: share characteristics and can breed with each other

8. Ocean Ecosystems
Login to to the Ocean Ecology Blendspace. Using slides 1-9, read the brief
description of each ecosystem and watch the videos. Complete the data table in your
notes using the information on the slides.
Ecosystem
Description
Abiotic Components
Biotic
Components
Estuary
Coral Reef
Kelp Forest
Hydrothermal
Vents

9. Within an ecosystem, each species has a…
Habitat: the place where an organism lives. It supplies all the biotic and abiotic factors the organism needs to survive.
Niche: an organism’s role/”job.”
what it eats, how it eats and how it lives…
If the niche of one organism overlaps the niche of another organism, you have competition!
Reginald

10. Habitat vs Niche Organism Habitat Niche lion Cheetah leopard
african hunting dogs
oysters
red wolf 