Ecology Unit Test review

Last updated about 2 years ago

38 questions

1

Library

Ecology Unit Test review

Last updated about 2 years ago

38 questions

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What is a primary consumer in a food chain?

Carnivore

Herbivore

Producer

Decomposer

Which organism occupies the highest trophic level in the ecosystem?

Decomposer

Carnivore

Top consumer

Tertiary Consumer 

What do arrows in a food chain represent?

Energy flow

Population size

Air circulation

Water supply

In what aspect do food chains differ from food webs?

Consumer roles

Predator-prey relationships

Energy flow direction

Food webs show multiple food chains

What term describes a relationship where one organism benefits and the other is neither helped nor harmed?

Commensalism

Predation

Parasitism

Mutualism

Which type of symbiotic relationship benefits both organisms involved?

Predation

Commensalism

Mutualism

Parasitism

In symbiosis, what type of relationship involves one organism benefiting at the expense of another?

Mutualism

Predation

Commensalism

Parasitism

When one organism hunts and kills another for food, what type of relationship is this?

Predation

Parasitism

Mutualism

Commensalism

Match the type of symbiotic relationship with its description.

Draggable item		Corresponding Item
Mutualism		One organism benefits while the other is unaffected.
Commensalism		One organism benefits at the expense of the other.
Parasitism		Both organisms benefit from the relationship.

Pair the symbiotic relationship with a real-life example.

Draggable item		Corresponding Item
Mutualism		Ticks on a dog
Commensalism		Bees and flowers
Parasitism		Remora fish and sharks

Match the symbiotic relationship with a marine ecosystem scenario.

Draggable item		Corresponding Item
Parasitism		Coral and algae in coral reefs
Mutualism		Shrimp living in sea urchin spines
Commensalism		Lampreys feeding on fish in rivers

Associate the symbiotic relationship with its impact on organisms.

Draggable item		Corresponding Item
Mutualism		One species harms the other to benefit itself
Commensalism		Increase chances of survival for both species
Parasitism		One species benefits without affecting the other negatively

What process releases carbon dioxide into the atmosphere?

Photosynthesis

Condensation

Respiration

Evaporation

Where is carbon stored for long periods of time?

Animals

Atmosphere

Plants

Fossil fuels

What is the main process by which carbon returns to plants?

Erosion

Photosynthesis

Decomposition

Combustion

Which process returns carbon to the atmosphere?

Respiration

Photosynthesis

Burning

Decomposition

What is the process where bacteria convert nitrogen gas to ammonia?

Nitrogen fixation

Denitrification

Nitrogen assimilation

Nitrification

Which organism is responsible for converting ammonia to nitrates?

Decomposers

bacteria

Legumes

Nitrosomonas bacteria

What is the role of denitrifying bacteria in the nitrogen cycle?

Fix nitrogen

Produce ammonia

Convert ammonia to nitrites

Convert nitrates to nitrogen gas

What is the main reservoir of nitrogen in the nitrogen cycle?

Animals

Atmosphere

Plants

Soil

What is the process where plants release water into the air?

Evaporation

Transpiration

Condensation

Precipitation

What occurs when water changes from liquid to gas?

Transpiration

Precipitation

Condensation

Evaporation

What is the term for water vapor turning into liquid water?

Precipitation

Transpiration

Evaporation

Condensation

What process brings water back to Earth as rain, snow?

Condensation

Transpiration

Precipitation

Evaporation

What happens when a population exceeds the carrying capacity?

Decrease in competition

Competition for resources

Increase in resources

Resources remain unchanged

What factor defines the maximum population an environment can sustain?

Food consumption

Carrying capacity

Weather patterns

Predator population

Match the following terms with the correct definition: Biome

Draggable item		Corresponding Item
Large geographic area with similar climate and vegetation		Ecosystem
A community of different species interacting with each other		Biosphere
Different biomes combine to form the Earth's overall biosphere		Biome

Match the following terms with the correct definition: Food Chain

Draggable item		Corresponding Item
Each step in a food chain represents a trophic level		Food Chain
A complex network of interconnected food chains in an ecosystem		Energy Pyramid
Sequence showing how energy is transferred between organisms		Food Web

Match the eating habits with the correct type of organism.

Draggable item		Corresponding Item
Omnivore		Eats only plants
Carnivore		Eats both plants and animals
Herbivore		Eats only other animals

Match the following terms with their definitions.

Draggable item		Corresponding Item
Biomass		All individuals of a particular species in a given area or region
Population		Different populations that live together in a specific area
Community		Total weight of living organisms in a given area

Match the roles in an ecosystem with the correct terms.

Draggable item		Corresponding Item
Decomposer		Eats other organisms for energy
Producer		Breaks down and recycles dead organic matter
Consumer		Makes its own food through photosynthesis or chemosynthesis

Match the following cycles with their corresponding roles in nature:

Draggable item		Corresponding Item
Carbon cycle		Converting nitrogen gas into a form plants can use
Water cycle		Moving carbon between living organisms and the atmosphere
Nitrogen cycle		Recycling water on Earth

Pair the following cycles with their impacts on ecosystems:

Draggable item		Corresponding Item
Nitrogen cycle		Ensures availability of freshwater for plants and animals
Water cycle		Regulation of Earth's climate by balancing carbon dioxide levels
Carbon cycle		Facilitates growth and development of plants through nitrogen fixation

Match the following organisms with their correct place in food chains:

Draggable item		Corresponding Item
Grass		Primary consumer
Rabbit		Secondary consumer
Fox		Producer

Pair the organisms with the biotic or abiotic factors:

Draggable item		Corresponding Item
Deer		Abiotic factor
Sunlight		Biotic factor
Water		Abiotic factor

Match the following terms to their correct definitions:

Draggable item		Corresponding Item
Herbivore		Hunts other organisms for food
Predator		Breaks down dead organisms into nutrients
Decomposer		Eats only plants

What is a primary consumer in a food chain?

Carnivore

Herbivore

Producer

Decomposer

Which organism occupies the highest trophic level in the ecosystem?

Decomposer

Carnivore

Top consumer

Tertiary Consumer 

What do arrows in a food chain represent?

Energy flow

Population size

Air circulation

Water supply

In what aspect do food chains differ from food webs?

Consumer roles

Predator-prey relationships

Energy flow direction

Food webs show multiple food chains

What term describes a relationship where one organism benefits and the other is neither helped nor harmed?

Commensalism

Predation

Parasitism

Mutualism

Which type of symbiotic relationship benefits both organisms involved?

Predation

Commensalism

Mutualism

Parasitism

In symbiosis, what type of relationship involves one organism benefiting at the expense of another?

Mutualism

Predation

Commensalism

Parasitism

When one organism hunts and kills another for food, what type of relationship is this?

Predation

Parasitism

Mutualism

Commensalism

Match the type of symbiotic relationship with its description.

Mutualism

One organism benefits while the other is unaffected.

Commensalism

One organism benefits at the expense of the other.

Parasitism

Both organisms benefit from the relationship.

Pair the symbiotic relationship with a real-life example.

Mutualism

Ticks on a dog

Commensalism

Bees and flowers

Parasitism

Remora fish and sharks

Match the symbiotic relationship with a marine ecosystem scenario.

Parasitism

Coral and algae in coral reefs

Mutualism

Shrimp living in sea urchin spines

Commensalism

Lampreys feeding on fish in rivers

Associate the symbiotic relationship with its impact on organisms.

Mutualism

One species harms the other to benefit itself

Commensalism

Increase chances of survival for both species

Parasitism

One species benefits without affecting the other negatively

What process releases carbon dioxide into the atmosphere?

Photosynthesis

Condensation

Respiration

Evaporation

Where is carbon stored for long periods of time?

Animals

Atmosphere

Plants

Fossil fuels

What is the main process by which carbon returns to plants?

Erosion

Photosynthesis

Decomposition

Combustion

Which process returns carbon to the atmosphere?

Respiration

Photosynthesis

Burning

Decomposition

What is the process where bacteria convert nitrogen gas to ammonia?

Nitrogen fixation

Denitrification

Nitrogen assimilation

Nitrification

Which organism is responsible for converting ammonia to nitrates?

Decomposers

bacteria

Legumes

Nitrosomonas bacteria

What is the role of denitrifying bacteria in the nitrogen cycle?

Fix nitrogen

Produce ammonia

Convert ammonia to nitrites

Convert nitrates to nitrogen gas

What is the main reservoir of nitrogen in the nitrogen cycle?

Animals

Atmosphere

Plants

Soil

What is the process where plants release water into the air?

Evaporation

Transpiration

Condensation

Precipitation

What occurs when water changes from liquid to gas?

Transpiration

Precipitation

Condensation

Evaporation

What is the term for water vapor turning into liquid water?

Precipitation

Transpiration

Evaporation

Condensation

What process brings water back to Earth as rain, snow?

Condensation

Transpiration

Precipitation

Evaporation

What happens when a population exceeds the carrying capacity?

Decrease in competition

Competition for resources

Increase in resources

Resources remain unchanged

What factor defines the maximum population an environment can sustain?

Food consumption

Carrying capacity

Weather patterns

Predator population

Match the following terms with the correct definition: Biome

Large geographic area with similar climate and vegetation

Ecosystem

A community of different species interacting with each other

Biosphere

Different biomes combine to form the Earth's overall biosphere

Biome

Match the following terms with the correct definition: Food Chain

Each step in a food chain represents a trophic level

Food Chain

A complex network of interconnected food chains in an ecosystem

Energy Pyramid

Sequence showing how energy is transferred between organisms

Food Web

Match the eating habits with the correct type of organism.

Omnivore

Eats only plants

Carnivore

Eats both plants and animals

Herbivore

Eats only other animals

Match the following terms with their definitions.

Biomass

All individuals of a particular species in a given area or region

Population

Different populations that live together in a specific area

Community

Total weight of living organisms in a given area

Match the roles in an ecosystem with the correct terms.

Decomposer

Eats other organisms for energy

Producer

Breaks down and recycles dead organic matter

Consumer

Makes its own food through photosynthesis or chemosynthesis

Match the following cycles with their corresponding roles in nature:

Carbon cycle

Converting nitrogen gas into a form plants can use

Water cycle

Moving carbon between living organisms and the atmosphere

Nitrogen cycle

Recycling water on Earth

Pair the following cycles with their impacts on ecosystems:

Nitrogen cycle

Ensures availability of freshwater for plants and animals

Water cycle

Regulation of Earth's climate by balancing carbon dioxide levels

Carbon cycle

Facilitates growth and development of plants through nitrogen fixation

Match the following organisms with their correct place in food chains:

Grass

Primary consumer

Rabbit

Secondary consumer

Fox

Producer

Pair the organisms with the biotic or abiotic factors:

Deer

Abiotic factor

Sunlight

Biotic factor

Water

Abiotic factor

Match the following terms to their correct definitions:

Herbivore

Hunts other organisms for food

Predator

Breaks down dead organisms into nutrients

Decomposer

Eats only plants