Unit Review

Which type of light has the highest energy of this group?

• red

• yellow

• green

• blue

Tags

NGSS.MS-PS4-1

What part is represented by the blue lines?

• Crest

• Resting Point

• Wavelength

• Amplitude

Tags

NGSS.MS-PS4-1

A high-frequency wave has ___________ than a low-frequency wave

• a longer wavelength

• a shorter wavelength

• the same wavelength

• a stronger source

The gray plot and red plot attempt to transmit the same signal in the graph below. What is the best conclusion that can be drawn?

• The gray plot is a discrete analog signal.

• The red plot is a discrete digital signal.

• The red plot is a discrete analog signal.

• The red plot cannot transmit a useful signal because of its box like shape.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-3

The diagram above represents relationships in an

ecosystem. What is the primary source of energy in

this environment?

• cellular respiration in the plants

• energy from minerals in the soil

• fossil fuels

• solar energy

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Which statement about the organisms represented above is correct?

• All of the organisms are autotrophs.

• Only the flowering plant, green heron, and

  aquatic plant carry out photosynthesis.

• Only the frog, aquatic plant and green heron are

  heterotrophs.

• Only the flowering plant and aquatic plant are

  autotrophs.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Mistletoe is an evergreen shrub that can produce most

of its own food. Often, mistletoe can be found living

on trees and taking water and nutrients away from the

tissues of the trees. The relationship between

mistletoe and trees is an example of

• consumer/herbivore

• predator/prey

• scavenger/decomposer

• parasite/host

A stable ecosystem can have high biodiversity

because each species in that ecosystem

• occupies a different niche

• inhabits a different environment

• is part of a different community

• lives in a different biosphere

Tags

NGSS.MS-LS2-5

Stability within an ecosystem is achieved partially by

the presence of organisms that break down important

molecules and make them available for other

organisms to use. These organisms are

• plants

• herbivores

• scavengers

• decomposers

Tags

NGSS.MS-LS2-3

The bar graph below shows the number of species in

four pond ecosystems.

Based on this information, which ecosystem is likely

to be the most stable?

• A

• B

• C

• D

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4