Ecosystems & Energy

Which of the following are abiotic factors in an ecosystem?

• Sunlight, water, temperature
• Sunlight, bacteria, fungi
• Grass, dragonflies, birds
• Fish, turtles, deer

Which is a producer?

• deer
• grass
• lion
• worm

Where do all life forms get their energy?

• Earth's Core
• Water
• Plants
• The Sun

What does a Primary Consumer eat?

• Tertiary Consumers
• Secondary Consumers
• Producers

In Australia the farmers had a problem with beetles eating the sugar cane. So they introduced the cane toad to control that population. Instead of eating the beetles, they ate the source of food and other organisms. What would be a possible consequence of this?

• The other organisms attacks the toad population
• The ecosystem would be destroyed
• The cane toads would get too much food and die
• The food web was changed by this one organism

In the energy pyramid here, which organisms have the most energy available?

• Producers
• Carnivores
• Herbivores
• Top Predator

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

All food webs and food chains begin with _________________.

• primary consumer
• producers
• secondary consumers
• predators

The many overlapping food chains in an ecosystem make up an

• food web
• niche
• energy pyramid
• feeding level

Is the rabbit in the same food chain as the owl?

• No
• Yes

What is an organism that breaks down & absorbs dead matter so nutrition can be recycled into the soil?

• Consumer
• Decomposer
• Producers
• Scavenger