03.1 - Energy, Producers and Consumers (20pts.)

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

• Photosynthesis

• herbivores

• Consumer

• Heterotroph

• decomposers

• chemosynthesis

• Ominvores

Answer explanation

Gerald classifies grasses and clover as autotrophs because they make their own food through photosynthesis. He classifies insects that feed on clover as herbivores because he thinks they eat only plant matter, not animal matter.

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Organize these options into the right categories

Groups:

(a) Producer

,

(b) Consumer

,

(c) Decomposer

• 
• Heterotrophs

• 
• Bacteria that obtain energy from dead organisms

• Autotrophs

• 
• Bacteria that Chemosynthesize

• Bacteria that Photosynthesize

• Plants

• Animals

• Fungi

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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.

Answer explanation

Clams gaining energy and nutrients by filtering particles from the water aligns with the classification of consumers, as they consume food to obtain energy.

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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

Answer explanation

The diagram models the role of photosynthesis in transferring carbon from the atmosphere to the biosphere.

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Each of the processes listed below move carbon into the atmosphere. Rank them from the process that moves the greatest amount of carbon (left) to the least (right).

• Microbial Respiration and Decomposition

• Human Emissions

• Air-Sea Gas Exchange

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Select the hotspot under the label that labels the GREATEST reservoir of carbon.

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