Energy Flow and Ecosystem

In an ecosystem, snakes feed on frogs, which feed on mosquitoes. Use of a bug spray has decreased the number of mosquitoes. What will probably happen to the number of frogs and snakes?

• Frogs will increase, snakes will increase

• Frogs will increase, snakes will decrease

• Frogs will decrease, snakes will increase

• Frogs will decrease, snakes will decrease

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which of these shows a possible food chain for an ecosystem?

• shark--> fish --> plankton -->sun

• sun --> plankton --> fish --> shark

• plankton --> sun --> fish --> shark

• plankton --> fish --> shark --> sun

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

If the snake population decreased, which group would increase in number?

• Producers

• Primary consumers

• Secondary consumers

• Tertiary consumers

• Decomposers

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

This is an example of a(n)

• omnivore

• carnivore

• herbivore

• decomposer

A raccoon eats plants and animals. It is an example of a(n)

• omnivore

• carnivore

• herbivore

• decomposer

What do producers need, other than sun, for photosynthesis?

• Water and CO₂

• Glucose and O₂

• Love and happiness

• Carbohydrates and water

Tags

NGSS.MS-LS1-6

Organisms that break down wastes and dead organisms and return the raw materials to the environment

• Producer

• Consumer

• Decomposer

Consumers that eat both plants and animals

• Omnivores

• Carnivores

• Herbivores

• Scavengers

Consumers that feed on the bodies of dead organisms

• Carnivores

• Omnivores

• Herbivores

• Scavengers

Tags

NGSS.MS-LS2-3

A food _______ consists of many overlapping food ________.

• web, chains

• chain, webs

• pyramid, webs

• web, pyramids

Tags

NGSS.MS-LS2-3