Bio/HBio Unit 1 Review

At what point in time would a pioneer species appear?

• 35 years
• 15 years
• 80 years
• 115 years

Which of the following is the correct order of Ecological Hierarchy from most specific to least specific?

• Community, Population, Biome, Ecosystem. Biome, Biosphere, Organism
• Biosphere, Ecosystem, Community, Population, Biome, Organism
• Organism, Population, Community, Ecosystem, Biome, Biosphere
• Ecosystem, Organism, Biosphere, Community, Biome, Population

A student is studying the ecology of a marshland, which forms after a rainfall in a dry lake bed that includes the following organisms: fairy shrimp, clam shrimp, tadpole shrimp and mayfly larvae. Which level of biological organisms best describes what the student observed?

• Biosphere
• Population
• Biome
• Ecosystem

Which of the following statements regarding the Nitrogen Cycle is correct?

• Nitrogen is NEVER a component of organic molecules
• Decomposers provide protein to the atmosphere
• Bacteria in the soil break down nitrogen to form carbohydrates
• The main reservoir of nitrogen is the atmosphere

In the water cycle, plants return water to the atmosphere through the process known as:

• Photosynthesis
• Decomposition
• Transpiration
• Assimilation

Which of the following could cause the amount of Carbon Dioxide in the atmosphere to decrease?

• Increased burning of fossil fuels
• Increased numbers of decomposers
• Increased numbers of autotrophs
• Increased respiration in animals.

In the carbon cycle, atmospheric carbon dioxide is converted by autotrophs into organic material by which process?

• Cellular Respiration
• Decomposition
• Transpiration
• Photosynthesis

As you move up trophic levels on an Energy Pyramid, energy...

• Increases
• Decreases
• Remains the same
• None of the above

Which of the following Trophic Levels would have the greatest amount of energy?

• 1
• 2
• 3
• 4

A consumer that eats both plants and animals is known as....

• Herbivore
• Omnivore
• Carnivore
• Detrivore