Classification
Dichotomous keys
Food chains
Food Webs
Ecosystems
100

A plant is classified as living or non-living?

Living 

100

How many options are in each step of a dichotomous key?

2

100

Name an abiotic factor

sunlight, atmosphere, air, wind, water, temperature. 

100

What animal eats only producers?

Herbivore

100

What do you call a species that is introduced to a new ecosystem and takes over. 

Invasive species. 

200

Identify the genus of the following organism. 

Felis catus

Cat

200

What is a dichotomous key?

A key that helps in identifying organisms. 

200

In a food chain, what do the arrows represent?

The direction that energy flows. 

200

How much energy moves up trophic levels in an energy pyramid?

10%

200

What is biodiversity?

The different species in an ecosystem. 

300

Name 5 characteristics of all living things. 

Movement, Growth, Respiration, Reproduction, Sensitivity, Excretion, nutrition. 

300
Why are dichotomous keys used? 

Dichotomous keys are used to identify different organisms based on their observable features. 

300

Explain what a producer is, give an example. 

A producer is an organism that creates it's own energy, such as grass or a tree. 

300

What is a food web?

A food web is a diagram demonstrating the energy transfers between organisms throughout an ecosystem. It is made up of multiple food chains. 

300

Name 3 different invasive species in Australia. 

Crown of thorns starfish, camels, toads, rabbits. 

400

Kingdoms are the largest group of the Linnean system. What are 6 Kingdoms? 

Animalia, Plantae, fungi, protista, Bacteria and Archaebacteria 

400

Explain what a strong feature is. 

A strong feature is a structural feature that doesn't change over time or between individuals of the same species. E.g. has fur. 

400

Create a food chain with the follow organisms. hawk, grass, snake, frog, grasshopper. 

Grass, grasshopper, frog, snake, hawk. 

400

Describe the differences and similarities between a predator and a scavenger 

Differences - predator catch prey, scavengers eat prey that have already died. 

Similarities - both are consumers. 

400

What can happen if you introduce a new species into a food web? 

It can throw out the balance of the food web. While some predators may have more to eat, there can be greater competition for resources for others, and it can result in food sources being completely depleted. 

500

Organisms belonging to the same Phylum have similar characteristics. What are the characteristics of organisms belonging to the Phylum Mammalia?

warm-blooded, have hair or fur, give birth to live young

500

Explain how you use a dichotomous key. 

In a dichotomous key, you are given two options. You choose one option based on the observable features of the organism. You continue to choose from two options until you find the name of the organism at the end of the key. 

500

Explain the purpose of a food chain and the information it provides. 

A food chain is a representation of which organisms it which other organisms in an ecosystem. The purpose of this is to demonstrate energy flows through an ecosystem from producers to apex predator. 

500

Explain what would happen if you removed all but one primary consumer from a food web. 

If all but one primary consumer is removed from the food web then the last primary consumer population would increase, as would any secondary or tertiary consumers of this species. Any secondary consumers that don't feed on this species would decrease as well as specific producers favoured by this species. Competition could increase between secondary and tertiary consumer for a less varied food source.  

500
Explain why biodiversity is important. 

Biodiversity is important because it helps to make ecosystems more resilient to change. When ecosystems can stay healthier during changes it helps to keep the world balanced and lessons the impact of other species.