Energy Flow Among Living Things

The primary source of energy in a food web is

• sunlight

• producers

• wind

• consumers

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

What factor does the food webs of both marine and terrestrial ecosystems have in common?

• They both rely on photosynthesis

• They always contain omnivores

• They only contain herbivores

• They must have at least 4 trophic levels

Tags

NGSS.MS-LS1-6

How do nutrients get back into soil so that plants can use them for growth?

• The organic matter is recycled from dead organisms

• Commercial fertilizer is applied by humans

• Rainwater returns nutrients from the atmosphere

• Solar radiation heats the soil and releases the nutrients.

Tags

NGSS.MS-LS2-3

Which organism. gets its energy directly from the Sun?

• phytoplankton

• zooplankton

• krill

• baleen whale

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

The different levels in the energy pyramid that identify an organism's place within the ecosystem are called the

• trophic levels

• energy platforms

• energy transfer locations

• levels of organization

What type of organism helps to recycle organic materials and nutrients back into the ecosystem?

• decomposers

• predators

• herbivores

• omnivores

Tags

NGSS.MS-LS2-3

Identify a primary consumer in this food web.

• rabbit

• owl

• snake

• grass

Tags

NGSS.MS-LS2-2

Identify the producer in this food web.

• grass

• frog

• grasshopper

• owl

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

Which of the following is both a secondary and tertiary consumer in this food web?

• owl

• mouse

• grasshopper

• rabbit

Tags

NGSS.MS-LS2-3

The process that adds nutrients from organic materials back into the soil is called...

• decomposition

• weathering

• deposition

• acidification

Tags

NGSS.MS-LS2-3