8.11 ecosystems

Which examples have characteristics of primary succession?

• 1 and 2

• 1 and 4

• 2 and 3

• 2 and 4

Tags

NGSS.MS-LS2-4

Which organism do the owl and the weasel compete for in the food web?

• Hawk
• Spider
• Grasshopper
• Shrew

Tags

NGSS.MS-LS2-2

Which of the following is a herbivore?

• cricket
• frog
• hawk
• shrew

Tags

NGSS.MS-LS2-3

A frog eats a fly. The frog and fly are demonstrating ________.

• mutualism
• competition
• predator/prey
• parasitism

Tags

NGSS.MS-LS2-2

A tapeworm inside a dog is

• competition
• predation
• commensalism
• parasitism

Tags

NGSS.MS-LS2-4

How many primary consumers are there in this food web?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-LS2-3

Example of a decomposer

• fungus
• mouse
• plants
• frogs

Tags

NGSS.MS-LS2-3

A tree is a ....

• composer
• decomposer
• producer

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is a producer?

• an organism that gets energy from eating other organisms
• an organisms that uses sunlight to make its own food
• an organism that gets energy from eating dead organisms, non-living material or waste
• an organism that uses chemical energy to make its own food

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The arrows in a food chain or web represents what?

• They point to the organism that is being eaten.
• It shows how sunlight flows within an ecosystem.
• They show what direction the energy is flowing between organisms. 
• They represent how water is transferred within a habitat.

Tags

NGSS.MS-LS2-3