All of life on earth exists in a region known as ______________

Groups of different species that live together in a defined area make up a(n) _________________

The process in which organisms use chemical energy stored IN THE CHEMICAL BONDS OF INORGANIC MOLECULES to make their own food in the absence of light is called _________________

Heterotrophs are also called _______________.

Each step in a food chain or web is called a _________________

Autotrophs can also be called _____________________.

Only about _____ percent of the energy available within one trophic level is transferred to organisms at the next trophic level when they are eaten.

Put the following in order from least to most complex: BIOSPHERE, POPULATION, ECOSYSTEM, COMMUNITY, INDIVIDUAL ORGANISM, BIOME. Write the correct order in the blanks provided.

How is a food chain different from a food web?

Name a producer in this food web.

Refer to the food web diagram. Name two heterotrophs.

What do you think will happen to the frog population in this community if all the centipedes were killed off by a disease?

Refer to the food web diagram. What will happen to the frog population if all the centipedes were killed off by a disease?

During which process do plants use carbon dioxide?

In the nitrogen cycle, bacteria that live in soil and on plant roots in a symbiotic relationship with legumes change nitrogen gas into ammonia in a process called _______________.

Which biogeochemical cycle does NOT involve a stage where the chemical enters the atmosphere?

Which of the following is NOT recycled in a biogeochemical cycle in the biosphere?

Carbon cycles through the biosphere in all of the following EXCEPT ______________________

How is carbon stored in the biosphere?

How is nitrogen returned to the atmosphere in the nitrogen cycle?

How is the movement of matter through the biosphere different from the flow of energy?

Which biomolecules found in living things contain carbon?

Which biomolecules found in living things contain phosphorus?

Name the 3 types of SYMBIOSIS: Relationship in which one organism benefits, but the other is neither helped nor harmed.

Name the 3 types of SYMBIOSIS: Relationship in which one organism benefits and the other is harmed in some way.

Name the 3 types of SYMBIOSIS: Relationship in which both organisms benefit.

The __________________________ principle states that NO two species can occupy the same niche in the same habitat at the same time.

Use what you learned about limiting nutrients to explain why many lakes in Arkansas turn green in late summer.

Fill in the table below: TRANSPIRATION | EVAPORATION WAY THEY ARE DIFFERENT: __________________________ | __________________________ WAY THEY ARE ALIKE: __________________________ | __________________________

Name 4 biogeochemical cycles:

NAME THE CYCLE DESCRIBED: Cycle in which photosynthesis and cellular respiration participate

NAME THE CYCLE DESCRIBED: __________________ Only cycle which does not pass through the atmosphere

NAME THE CYCLE DESCRIBED: Cycle that involves transpiration

Cycle which is dependent on bacteria for nitrogen fixation and denitrification

NAME THE CYCLE DESCRIBED: Process by which water enters the atmosphere from the leaves of plants

NAME THE CYCLE DESCRIBED: Cycle in which volcanic activity and burning fossil fuels plays a role

NAME THE CYCLE DESCRIBED: __________________ Another name for the water cycle

NAME THE CYCLE DESCRIBED: Cycle which includes an underground reservoir in the form of fossil fuels

NAME THE STEP IN A BIOGEOCHEMICAL CYCLE: __________________ Process in which nitrogen gas from the atmosphere is converted into ammonia by bacteria that live in the soil and on the roots of plants called legumes

NAME THE STEP IN A BIOGEOCHEMICAL CYCLE: __________________ Process in which soil bacteria convert nitrogen compounds in soil back into nitrogen gas which is released into the atmosphere

NAME THE STEP IN A BIOGEOCHEMICAL CYCLE: __________________ Process in which sunlight is used to change atmospheric carbon into biomolecules used for energy by living things

NAME THE STEP IN A BIOGEOCHEMICAL CYCLE: __________________ Process in which water evaporates from the surface of plant leaves

NAME THE STEP IN A BIOGEOCHEMICAL CYCLE: __________________ Process in which nutrients in dead organisms are returned to the soil

NAME THE STEP IN A BIOGEOCHEMICAL CYCLE: __________________ Process in which the break down of sugars in living things returns carbon to the atmosphere as CO₂

________________ Process in which liquid water changes into gas form

________________ Process in which water vapor (gas) changes into liquid water

Tell 2 human activities by which carbon can enter the atmosphere as CO₂ during the carbon cycle

Name 2 NON-human activities by which carbon can enter the atmosphere or oceans during the carbon cycle.

Tell one way carbon leaves the atmosphere during the carbon cycle.

Tell 2 ways water enters the atmosphere in the water cycle

Tell something humans do to return nitrogen to the soil for the nitrogen cycle.

Although almost 80% of the atmosphere is made up of nitrogen gas, most living things don’t have the enzymes necessary to use nitrogen directly from the atmosphere. How do we get the nitrogen we need to make proteins and DNA if we can’t get it from breathing?

WHAT’S THE TYPE OF SYMBIOSIS?

WHAT'S THE TYPE OF SYMBIOSIS?

WHAT'S THE TYPE OF SYMBIOSIS?

WHAT’S THE TYPE OF SYMBIOSIS?

WHAT’S THE TYPE OF SYMBIOSIS?

WHAT’S THE TYPE OF SYMBIOSIS?

WHAT’S THE TYPE OF SYMBIOSIS?

WHAT'S THE TYPE OF SYMBIOSIS?

WHAT'S THE TYPE OF SYMBIOSIS?

WHAT’S THE TYPE OF SYMBIOSIS?

WHAT’S THE TYPE OF SYMBIOSIS?

WHAT'S THE TYPE OF SYMBIOSIS?

WHAT'S THE TYPE OF SYMBIOSIS?

WHAT'S THE TYPE OF SYMBIOSIS?

Identify the type of symbiosis.

Identify the type of symbiosis shown in the diagram.

Name the 3 kinds of symbiosis you learned about.

Name one way CARBON is added to the atmosphere during the carbon cycle.

Select TWO of the FOUR ways that organisms interact in an ecosystem.

Food chains always have a(n) ____________ on their first trophic level.

Process in which bacteria convert nitrates into nitrogen gas and release it into the atmosphere.

Which of these is a decomposer?

The process in which water from plant leaves evaporates into the atmosphere is ____________.

8. The biogeochemical cycle that does not cycle through the atmosphere is:

Which of the following is NOT part of the nitrogen cycle?

Humans get the nitrogen they need from the atmosphere.

Which of these is a herbivore?

12. Name a biomolecule found in living things that contains NITROGEN.

The water cycle is also called the ____________ cycle.

Name this kind of symbiosis in which both organisms help each other.

Make a food chain out of the following: herbivore, omnivore, producer.

16. Name the biogeochemical cycle that includes: run off, precipitation, evaporation, transpiration, and condensation.

Put the following in order of increasing complexity: Biosphere, population, organism, ecosystem, community, biome.

Bacteria in the soil that have a symbiotic relationship with legumes can turn nitrogen gas into ________ in a process called nitrogen fixation.

Type of symbiosis in which one organism benefits but the other is neither helped nor harmed.

Name THREE of the FOUR biogeochemical cycles you learned about.

21. Organisms have to compete for several things in an ecosystem. Which of the following is NOT typically one of them?

An organism’s ________ describes where it lives, what it eats, what eats it, how it interacts with other organisms, how and when it reproduces, and how it acts.

Name this type of symbiosis.

Which organisms are necessary ________ for producing ammonia, nitrates, and nitrites during the nitrogen cycle?

All the non-living things in an ecosystem that affect an organism are called ________ factors.

Some bacteria that live in hostile places (like volcano vents) can produce their own food WITHOUT LIGHT in a process called ________________.

Organisms that feed on dead plant & animal remains are called _________________