Biology 3.1, 3.2, 3.3

In the open ocean, tiny organisms called ____ perform photosynthesis. They are the primary producers in many (ecological pyramids/food chains/ food web/ trophic level).

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)_________________.

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).

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

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?

 

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.

 

Which of the feeding interactions below is MOST LIKELY to be part of this ecosystem?
This pyramid of numbers is modeling organisms within an ecosystem.  

 

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.
 

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.
 

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.
 

identify each type of organism as either producer or consumer 
(p - producer)
(c - consumer)

Which statement describes ALL primary producers?

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

 

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