ET Trophic levels 5/14/25

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

What are the primary consumers in this image?

• Owl

• Grasshopper

• Mouse

• Bird

• Rabbit

Tags

NGSS.MS-LS2-2

If there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in the herbivores in trophic level 2?

• 10 Kcal
• 1 Kcal
• 100 Kcal
• 1000 Kcal

Tags

NGSS.MS-LS2-3

The diagram represents different levels of a marine food pyramid. Between which two levels is the greatest amount of energy transferred

• R and Q
• S and R
• T and S
• U and T

Tags

NGSS.MS-LS2-3

The diagram represents a model of a food pyramid.  Which statement best describes what happens in this food pyramid?

• More organisms die at higher levels than at lower levels, resulting in less mass at higher levels.
• Energy is lost to the environment at each level, so less mass can be supported at each higher level.
• When organisms die at higher levels, their remains sink to lower levels, increasing the mass of lower levels.
• Organisms decay at each level, and thus less mass can be supported at higher levels

Tags

NGSS.MS-LS2-3

Which of the following statements about this food web is FALSE?

• the ultimate source of energy for the whole food web is the radiant energy of the SUN

• arrows in a food web show the direction that energy moves from one trophic level to another

• 100% of the energy made by the vegetation is passed to the geese and mute swans

• energy is used up by each trophic level, and ultimately lost as heat energy

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6