Ecology Quizz (3.1, 3.2)

In the open ocean, tiny organisms called _______________________ perform photosynthesis. They are the primary producers in many (ecological pyramids / food chains / food webs/trophic levels) that overlap to form a(n) (ecological pyramid / food chain /food web / trophic level).

• animal plankton
• bacteria
• decomposers
• phytoplankton

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

In the open ocean, tiny organisms called (animal plankton / bacteria /decomposers / phytoplankton) perform photosynthesis. They are the primary producers in many (ecological pyramids / food chains / food webs / trophic levels) that overlap to form a(n)_________________.

• ecological pyramid
• food chain
• food web
• trophic level

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

In the open ocean, tiny organisms called (animal plankton / bacteria /decomposers / phytoplankton) perform photosynthesis. They are the primary producers in many ________________ that overlap to form a(n) (ecological pyramid / food chain /food web / trophic level).

• ecological pyramids
• food chains
• food webs
• trophic levels

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The diagram represents four trophic levels in an ecosystem. Which of the following best describes how energy flows in this ecosystem?

• Energy flows through all the trophic levels and then back to the producers.
• Most of the energy from the plants is transferred to the mice, grasshoppers, and rabbits because plants don't have to search for their food.
• Birds have the most energy because energy from all the other trophic levels flows to the bird.
• About ten percent of the energy at one trophic level is passed to the next trophic level.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

The diagram is a model of an energy pyramid of an ecosystem. The levels of the diagram are labeled with percentages. What do the percentages represent?

• the average energy requirements of organisms in each trophic level
• the relative amounts of energy contained by the organisms in each trophic level
• the energy lost as heat from one trophic level to the next
• the rate of conversion of light energy to chemical energy _

Tags

NGSS.MS-LS2-3

Ethan is modeling food chains he observes in his local ecosystem. Which of these models represent possible food chains he might observe? Select two (2) answer choices.

• primary producer -> consumer -> consumer
• primary producer -> consumer -> primary producer -> consumer
• primary producer -> consumer -> consumer -> consumer -> consumer
• consumer -> primary producer -> consumer -> primary producer -> consumer

Tags

NGSS.MS-LS2-3

Which of the feeding interactions below is MOST LIKELY to be part of this ecosystem?

• grasses in a meadow that provide food for many small animals
• a dead whale that provides food for many ocean animals
• an algae colony that provides food for many fish
• a tree that provides food for thousands of insects

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-2

NGSS.MS-LS2-3

NGSS.MS-LS2-4

Gerald is studying the plants and animals of a meadow. He classifies the grasses and clover as _______________ because they make their own food through the process of (chemosynthesis /decomposition / photosynthesis / regurgitation). He classifies insects that feed on the clover as (carnivores / detritivores / herbivores / omnivores) because he thinks they eat only plant matter, not animal matter.

• autotrophs
• consumers
• decomposers
• heterotrophs

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Gerald is studying the plants and animals of a meadow. He classifies the grasses and clover as (autotrophs / consumers / decomposers / heterotrophs) because they make their own food through the process of ________________________. He classifies insects that feed on the clover as (carnivores / detritivores / herbivores / omnivores) because he thinks they eat only plant matter, not animal matter.

• chemosynthesis
• decomposition
• photosynthesis
• regurgitation

Tags

NGSS.MS-LS1-6

Gerald is studying the plants and animals of a meadow. He classifies the grasses and clover as (autotrophs / consumers / decomposers / heterotrophs) because they make their own food through the process of (chemosynthesis /decomposition / photosynthesis / regurgitation). He classifies insects that feed on the clover as _____________________ because he thinks they eat only plant matter, not animal matter. Classify Write a letter on each line to classify the organism.

• carnivores
• detritivores
• herbivores
• omnivores