September 08, 2014

Unit 1: Interactions and Ecosystems

Topic 1: Interactions Within an Ecosystem

In this topic you will...

1) What environments need to have in order to support life

2) Look at the relationship between animals and other animals

3) Look at the relationship between animals and the environment

What is the difference betweenEcosystem & Interaction??

You will need 2 pieces of blank paper for this activity (no lines)

Look through topic 1 in your textbook (page 6 - 16)

Come up with a definition for ECOSYSTEM(write this on one of your pieces of paper)

Come up with a definition for INTERACTION(write this on the other piece of paper)

Do you BEST to represent each definition with a drawing and color it!

(it is okay if you are not an artist!)

September 08, 2014

Ecology:

* Ecology is the study of the relationship between living organisms and their environment.

* An ecologist is someone who studies these relationships

The Needs of Living Things:

Let's Brainstorm...

What do WE as humans need to survive??

1) Living things need FOOD. Animals eat food, while plants make food.

2) Living things need WATER. Water covers most of our planet and it also forms a large part of living things.

3) Living things need a suitable habitat.

4) Living things exchange gases ... breathing in and out.

Game: "Who Am I??"

September 08, 2014

Adaptations:

* Living this are adapted so that they "fit" their surroundings.

* Adaptations ensure that they can survive in the environment in which they live.

Eg. many bones in a bird's body are hollow. This characteristic makes the bird lighter so it can easily fly.

Structural Adaptations:

* An adaptation that is inherited to help an organism survive and reproduce in its environment.

Eg. Dolphins are borns with a flipper on their tail that enables them to swim well.

September 08, 2014

Behavioural Adaptations:

* An adaptation that is learned during an animal's lifetime to help them survive.

Eg. Humans have LEARNED to look both ways before crossing the street. We learn this to help keep up safe in our environment.

Your Turn:

Complete the worksheet "Adapted for Survival" in the computer lab.

You may work with a partner for this activity.

September 08, 2014

LAB"Tools for the Task"

For this lab, you will have a "lab template" to help you with your lab write up.

When the lab is complete, answer the analysis questions on the lab write up template.

Hand in the lab for marking with you are finished.

Ecosystems:

* An ecosystem is the interactions between living and non-living things in a particular environment.

Eg. A forest is an example of an ecosystem.

* All parts of an organism's world are connected. If one part is affected the organism will need to adjust somehow.

What is an ecosystem

September 08, 2014

Interactions in Ecosystems:

* SYMBIOSIS: occurs when two species live closely together in a relationship that lasts over time.

Eg. Shark and Remora. The Remora live on the shark and dine on the bacteria that is on the shark's skin and it unhealthy for the shark.

There are 3 types of symbiosis: Mutualism, Parasitism and Commensalism

Let's take a closer look...

3 Types of Symbiosis:

* MUTUALISM: is a relationship between two different organisms, in which each partner benefits from the relationship.

* PARASITISM: is a relationship in which one organism benefits and the other organism is harmed.

One of the organisms is a parasite... the other is a host.

* COMMENSALISM: a relationship in which one partner benefits and the other partner appears neither to lose nor game from the relationship.

Symbiotic Relationships

September 08, 2014

Impacts on the Ecosystem:

* All organisms have some kind of impact when they interact in their ecosystem.

Example: a beaver cuts down trees to each and to make dams. The dam drastically changes the ecosystem where the beaver lives. In turn this has changes the number and types of species that can live in the water around the dam. The impact of the beaver making the dam has improved conditions for some species, and worsened conditions for other species.

Your Turn:

Complete the Topic 1 Review sheet.

What is not completed in class will be assigned for homework.