Resources

Comprehension activity-Fill in the missing words in the text below.

Find the missing word in the text below.

Fill in the missing words in the text below.

1. Identify and circle the non-living things in the picture above.
2. List all the living things you can find.
3. Colour in the coral reef ecosystem.
4. Extension: Choose one of the non-living things in the picture that could be harmful to a coral reef. Explain why it is harmful and what you can do to prevent it from occurring.

Questions
1. How many arms can a crown-of-thorns starfish have?
2. Describe how Crown-of-thorns starfish feed?
3. Explain an outbreak of Crown-of-thorns starfish and how it impacts the health of a reef?
4. Identify what we can do to reduce Crown-of-thorns starfish numbers on the reef?

Label the image below with the following features.

There are many animals that use mangrove forests for their home both above and below the water. colour all the animals that you can find, then answer the questions on page 2.

1. Identify as many organisms as you can and record their names below.
2. Explain why mangrove forests are important ecosystems?
3. Create a Mangrove Forest food chain using organisms identified on page 1

Predator vs Prey
Select one of the predator-prey relationships below and describe, or draw a
diagram to show:
a) How the predator "attacks" its prey
b) How the prey avoids being attacked

1. Consider the following levels in a food chain. Write examples of the plants or animals that represent each level in a marine food chain environment.
2. Food chains vary in length though are rarely more than five levels. Suggest a reason for this.
3. Food webs give a useful description of the feeding relationships in an ecosystem.
a. Using the examples you have written in the table above, draw a pyramid of numbers which represents this food chain.
b. Draw a pyramid of numbers that represents the following scenario: a large predatory fish covered in parasites, being cleaned by a symbiotic cleaner fish.

Seagrass meadows are important ecosystems in the Great Barrier Reef Marine Park.

Colour all the animals you can find and then answer the following questions.
1. Identify as many organisms as you can and record their names below:
2. Define the following terms: a. Producer b. Consumer c. Decomposer
3. Identify an organism in a seagrass meadow that is a: a. Producer b. Consumer c. Decomposer

Structural Adaptations

1. How do corals compete for light? Reef building corals require solar energy to grow and lay down their skeleton.
2. Your challenge is to investigate the structural adaptations that corals have evolved to compete for this valuable resource.
3. Use the information gained to complete the table below.