SOL 7th Grade Review (Cycles and Systems)

Many important elements and compounds _____ through the living and nonliving parts of the environment and ecosystem.

Tags

NGSS.MS-ESS2-1

NGSS.MS-LS2-3

Materials are recycled and made available through the action of -

• 
• consumers

• producers

• decomposers

Tags

NGSS.MS-LS2-3

What two things fix nitrogen gas into a usable form (nitrates)?

• Lightning

• Hydrolysis

• Nitrogen-fixing bacteria

• Transamination

How does energy enter a system?

• Cellular respiration

• Beta oxidation

• Photosynthesis

• Consumers

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Select the producers in all 3 ecosystems:

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-1

NGSS.MS-LS2-3

Organize these organisms into the correct category

Groups:

(a) Producer

,

(b) First-order consumer

,

(c) Second-order consumer

,

(d) Third-order consumer

• mosquito

• buffalo grass

• green algae

• rat snake

• phytoplankton

• rat

• frog

• sardines

• grasshopper

• dragonfly

• tuna

• zooplankton

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

True or false:

Energy from photosynthesis is passed through the system as one organisms eats and in turn is eaten.

• True

• False

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Energy in a food pyramid _____ as you move UP trophic levels.

• increases

• stays the same

• decreases

• changes

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Label role the organisms play in the diagram:

a

b

c

Producer

First-order consumer

Second-order consumer

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is a producer?

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3