4.1 and 4.2 QUIZ

SECTION 4.1 Gerald is studying the plants and animals of a meadow. He classifies the grasses and clover as ​ (a)   because they make their own food through the process of ​ (b)   . He classifies insects that feed on the clover as ​ (c)   because he thinks they eat only plant matter, not animal matter.

• autotrophs
• consumers
• decomposers
• heterotrophs
• chemosynthesis
• photosynthesis
• herbivores
• detrivores

Tags

NGSS.MS-LS1-6

SECTION 4.1 Organize these options into Primary Producers and Consumers

Groups:

(a) Primary Producer

,

(b) Consumer

• Bacteria that perform chemosynthesis

• Plants

• Bacteria that perform photosynthesis

• Fungi

• Animals

Tags

NGSS.MS-LS2-3

SECTION 4.1 Which statement describes ALL primary producers?

• All make energy-rich compounds that can be used by other organisms.

• All make their own food using the energy of compounds in the environment.

• All take in energy-rich compounds that were made by other organisms.

• All make their own food using the energy of sunlight.

Tags

NGSS.MS-LS1-6

SECTION 4.1 Scientists classify clams as consumers. Which observation about clams provides the strongest evidence for this classification?

• Young clams are able to move from place to place.

• Clams gain energy and nutrients by filtering particles from the water.

• Clams use calcium compounds to make a hard shell.

• Clams live on the ocean floor, and sometimes survive without sunlight.

Tags

NGSS.MS-LS2-3

SECTION 4.1 This diagram is a model of a biological process. Which of the following is modeled in the diagram?

• The role of photosynthesis in breaking apart carbohydrates for their energy

• The role of photosynthesis in adding carbon dioxide to the atmosphere

• The role of photosynthesis in transferring carbon from the atmosphere to the biosphere

• The role of photosynthesis in transferring carbon dioxide from the hydrosphere to the biosphere

Tags

NGSS.MS-LS1-6

SECTION 4.2 In the open ocean, tiny organisms called (a)   perform photosynthesis. They are the

      primary producers in many ​ (b)   that overlap to form a(n)​ (c)   .

• phytoplankton
• animal plankton
• food chains
• food web
• bacteria
• trophic level
• ecological pyramid
• decomposers

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

SECTION 4.2 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

SECTION 4.2 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

SECTION 4.2 Ethan is modeling food chains he observes in his local ecosystem. Which of these models represent possible food chains he might observe? Select two 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

• consumer ->

  consumer ->

  consumer ->

  consumer

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-3

SECTION 4.2 This pyramid of numbers is modeling organisms within an ecosystem. 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-LS2-3

NGSS.MS-LS2-4