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Students will examine the dependence of organisms on one another and their environments.

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Presentation on theme: "Students will examine the dependence of organisms on one another and their environments."— Presentation transcript:

1 Students will examine the dependence of organisms on one another and their environments.

2 How do organisms relate to one another in an environment for the purposes of energy exchange? ESSENTIAL QUESTIONS

3 IDENTIFY ROLE IN FOOD CHAIN.

4 A food chain is a way to describe the feeding relationships between different organisms. CREATE A FOOD CHAIN FLOW MAP

5 And what is a feeding relationship? DESCRIBE PREDATOR AND PREY RELATIONSHIPS

6 A feeding relationship describes who is eating what in a particular habitat. GIVE 3 EXAMPLES

7 Organisms are able to use energy directly from the sun to make their own food are called autotrophs. TRUE OR FALSE

8 All food chains start with ________because they can produce food by using energy from the sun. FILL IN THE BLANK

9 1.Organisms in the 2 nd step up the food chain are called the ________. Hint: These are animals that feed directly on plant material. FILL IN THE BLANK

10 What are animals that eat plants called? GIVE 2 EXAMPLES

11 WHO EATS HERBIVORES?

12 DESCRIBE COMMENSALISM

13 _________ that eat primary consumers, are called secondary consumers.

14 DESCRIBE MUTUALISM

15 DESCRIBE PARASITISM

16 DEFINE SYMBIOSIS

17 The arrows between each item in the chain always point in the direction of energy flow- in other words, from the food to the feeder. Give an example. FOOD CHAIN

18 The organisms at the top of food chains (such as wolves) are very small in number compared to those lower down (such as oaks) OR Why are there few apex hunters but a lot of grass? EXPLAIN WHY

19 What about animals that eat both plants and animals, such as bears and humans? What are they called? GIVE AN EXAMPLE

20 omnivores. DEFINE AND GIVE THREE EXAMPLES

21 Detritivores or decomposers DEFINE AND GIVE 2 EXAMPLES

22 EXPLAIN HOW FOOD WEBS WORK

23 1.An ________________ is a place where plants and animals interact with the environment. 2.Green plants are also called ________________ because they make their own food. 3.Animals that cannot produce their own food are called ________. 4.________________ are organisms that eat other animals. 5.A food chain or food________________ illustrates the feeding relationships in a place. 6.Each level in a food chain is called a ________________ level. 7.________________ are important organisms that break down dead organisms. Chapter 18


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