Review and Cycles

Multiple Choice

Which of these shows the flow of energy in an ecosystem?

• Trophic/food pyramid

• Carbon cycle

• Water cycle

Review and Cycles

Reorder

Reorder the following from highest biomass to lowest in an ecosystem.

• Producers

• Primary Consumers

• Secondary Consumers

• Tertiary Consumers

• Apex Predators

1

2

3

4

5

• 1
• 2
• 3
• 4
• 5

Match

Match the energy to the trophic pyramid level.

• 100%

• 10%

• 1%

• .1%

• .01%

Producer

Primary Consumer

Secondary Consumer

Tertiary Consumer

Apex predator

• Producer

• Primary Consumer

• Secondary Consumer

• Tertiary Consumer

• Apex predator

Match

Match the terms

• Producer/Autotroph

• Primary Consumer

• Secondary Consumer

Plant

Herbivore

Carnivore/Omnivore

• Plant

• Herbivore

• Carnivore/Omnivore

Categorize

Options (6)

Plants

Carnivore

Herbivore

Omnivore

Hawk

Mushroom

Organize these options into the right categories

Autotroph

Heterotroph

Tertiary Consumer Example

Detritivore

Dropdown

Non-living factors in the ecosystem are called​

Select answer

. Living factors in an ecosystem are called ​

Select answer

Multiple Choice

The highest biomass is in what trophic level?

• Producers

• Primary Consumers

• Secondary Consumers

Multiple Choice

In a food chain of:
Fox - Rabbit - Lettuce
Which organism fills the role of primary consumer?

• Fox

• Rabbit

• Lettuce

Cycling of Matter

Lesson 3

Focus Question

How does matter flow through an ecosystem?

What kinds of cycles did we learn about last week?

What’s an example of a cycle in the trophic pyramid we learned about?

Multiple Choice

This building block of life is found in living things and cycles through the food chain.

• Carbon

• Helium

• Sunlight

Multiple Choice

This is important for plants and requires bacteria to make it useable.

• Nitrogen

• Carbon

• Helium

New Vocabulary

biogeochemical cycle

denitrification

matter

nitrogen fixation

nutrient

Review Vocabulary

cycle: a series of events that occur in a regular repeating pattern

Cycles in the Biosphere

• Natural processes cycle matter and nutrients through the biosphere.

• Matter is anything that takes up space and has mass

• A nutrient is a chemical substance that an

organism needs to obtain from its environment in order to survive.

Multiple Choice

This is an example of a nutrient:

• Protein

• Oxygen

• Helium

Cycles in the Biosphere

• The cycling of nutrients through the

biosphere involves both living organisms
and physical processes.

• The exchange of matter through the

biosphere is called the biogeochemical
cycle.

Cycles in the Biosphere

The Water Cycle
• Water evaporates from bodies of water,

soil, and organisms.

• Water returns from the atmosphere in the form of precipitation

Cycles in the Biosphere

Multiple Choice

Precipitation is:

• Rain/snow

• Waves

• Sunlight

Cycles in the Biosphere

The Carbon and Oxygen Cycles
• Carbon and oxygen recycle relatively quickly

through living organisms.

• Photosynthesis and cellular respiration are important components of these cycles

• Carbon and oxygen enter a long-term cycle when they combines to form calcium carbonate

Cycles in the Biosphere

Cycles in the Biosphere

The Nitrogen Cycle
• The capture and conversion of nitrogen into a form that is useable by plants

• Nitrogen is fixed by bacteria or by electrical storms

• Nitrogen returns to the atmosphere through denitrification, a process in which bacteria convert fixed nitrogen back into nitrogen gas.

Cycles in the Biosphere

Multiple Choice

What's the process where bacteria and
lightning convert nitrogen into compounds that are
useful to plants?

• Nitrogen fixation

• Carbon cycle

• Precipitation

Multiple Choice

Most of the nitrogen is found in:

• The atmosphere

• The ocean

• Rock

Cycles in the Biosphere

The Phosphorus Cycle
• Phosphorus is essential for the growth and development of organisms

• Phosphorus cycles quickly as phosphates through sediments, plants, and consumers

• In addition, phosphorus is weathered or eroded from rocks and added to the cycle.

Multiple Choice

How many cycles have we discussed today?

• 4

• 1

• 10

Categorize

Options (9)

Uses bacteria

Uses lightning

Denitrification

Photosynthesis

Cellular respiration

Evaporation

Precipitation

Sediment

Erosion

Organize these options into the right categories

Nitrogen Cycle

Carbon Cycle

Water Cyle

Phosphorous Cycle

Cycles in the Biosphere

This week:

Review/Quizzes

We have a big test from the district on Monday 10/7. These test scores will be compared to every school in Tulsa Public Schools. We will be reviewing and preparing for this test all week. If we do well, all classes will get a reward! No projects this week. Makeup work can be done in your free time. No makeup work from before Friday will be accepted after this week ends.