Copy of Ecol Org, Biotic/Abiotic, Ecol Rel Quiz (Unit 1 - Ecology) (5/28/2026)

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What is a community?

A) A group of different species living together

B) A single species in an area

D) A population with no interactions

C) An ecosystem without abiotic factors

Which term refers to all ecosystems on Earth?

D) Population

B) Biome

A) Biosphere

C) Community

An individual organism belongs to which level of ecological organization?

C) Population

B) Ecosystem

D) Biome

A) Community

What is a characteristic of a population?

C) Interaction of abiotic and biotic factors

B) A group of the same species in a defined area

A) Different species living together

D) A specific biome

Which of the following best describes a biome?

C) A single ecosystem

A) A small group of species

B) A large area with similar climate and organisms

D) An isolated community

What are abiotic factors?

A) Living organisms

B) Nonliving components of an environment

D) Only water and soil

C) Interactions among species

Which of the following is NOT a biotic factor?

A) Plants

D) Bacteria

B) Animals

C) Temperature

How do abiotic factors affect living organisms?

A) They have no effect

C) They only affect plant life

B) They determine the types of organisms that can survive

D) They are only important during extreme weather

Which of the following influences the distribution of species in an ecosystem?

A) Only biotic factors

D) Only abiotic factors

B) Geographic isolation

C) Both biotic and abiotic factors

What role do biotic factors play in an ecosystem?

A) They are unimportant

C) They interact with abiotic factors to support life

D) They only exist in communities

B) They provide nutrients to the soil

Which biome is known for having the most diverse plant life?

A) Desert

D) Boreal forest

C) Tropical rainforest

B) Tundra

What is generally true about biodiversity in temperate regions?

A) It is lower than in tropical regions

B) It is the same as in polar regions

C) It is the highest in the world

D) It varies randomly

Which environmental factor is most critical in determining the type of biome?

D) Altitude

A) Soil type

B) Average Temperature and precipitation

C) Latitude

What is a common feature of tropical biomes?

B) High biodiversity

D) Few plant species

C) Limited rainfall

A) Low temperatures

What is commensalism?

B) Both species benefit

D) Both species compete for the same resources

A) One species benefits while the other is unaffected

C) One species is harmed while the other benefits

In an ecosystem, what does competition refer to?

D) Species living independently without interaction

B) Species fighting for limited resources

A) Both species benefiting from each other

C) One species benefiting at the expense of another

What type of relationship occurs when one organism feeds on another?

B) Predation

A) Mutualism

C) Commensalism

D) Parasitism

How does mutualism benefit both species involved?

A) One species gains while the other loses

D) They have no effect on each other

C) They compete for the same resources

B) Both species gain advantages from the interaction

Which of the following interactions is an example of parasitism?

D) A lion hunting a zebra

B) A bee pollinating a flower while feeding on nectar

A) A bird nesting in a tree without harming it

C) A tick feeding on the blood of a mammal

Which of the following interactions is an example of parasitism?

C) A tick feeding on the blood of a mammal

B) A bee pollinating a flower while feeding on nectar

A) A bird nesting in a tree without harming it

D) A lion hunting a zebra

Which interaction is an example of mutualism?

B) A clownfish living among the tentacles of a sea anemone

A) A lion hunting a gazelle

C) A hawk preying on a rabbit

D) A tapeworm living in the intestines of a dog

What type of relationship is illustrated by a barnacle attaching itself to a whale?

C) Parasitism

A) Mutualism

B) Commensalism

D) Predation

What is an example of predation?

B) A cat catching and eating a mouse

C) A tree providing shade to small plants

D) A fungus growing on a decaying log

A) A bee visiting a flower for nectar

Which of the following describes mutualism?

A) One species benefits while the other is harmed

C) One species is unaffected while the other benefits

D) Species compete for the same resources

B) Both species benefit from the interaction

Which of the following best defines an ecosystem?

D) A single organism in a habitat

A) A collection of organisms of the same species

B) A community or multiple communities and its abiotic environment

C) A biome with no interactions

Which factor is crucial for defining terrestrial biomes?

C) Climate

B) Length of day

A) Soil composition

D) Type of vegetation

What is the main characteristic of a grassland biome?

C) Dominance of grasses and few trees

A) Dominance of trees

B) High levels of precipitation

D) Extremely low biodiversity

In which biome would you most likely find polar bears?

B) Desert

C) Grassland

D) Tropical rainforest

A) Tundra

What is the primary cause of climate?

A) Ocean currents

C) Altitude

B) Latitudes

D) Soil types

Which biome is characterized by high temperatures and little rainfall?

B) Tundra

D) Grassland

C) Desert

A) Forest

What is a community?

A) A group of different species living together

B) A single species in an area

D) A population with no interactions

C) An ecosystem without abiotic factors

Which term refers to all ecosystems on Earth?

D) Population

B) Biome

A) Biosphere

C) Community

An individual organism belongs to which level of ecological organization?

C) Population

B) Ecosystem

D) Biome

A) Community

What is a characteristic of a population?

C) Interaction of abiotic and biotic factors

B) A group of the same species in a defined area

A) Different species living together

D) A specific biome

Which of the following best describes a biome?

C) A single ecosystem

A) A small group of species

B) A large area with similar climate and organisms

D) An isolated community

What are abiotic factors?

A) Living organisms

B) Nonliving components of an environment

D) Only water and soil

C) Interactions among species

Which of the following is NOT a biotic factor?

A) Plants

D) Bacteria

B) Animals

C) Temperature

How do abiotic factors affect living organisms?

A) They have no effect

C) They only affect plant life

B) They determine the types of organisms that can survive

D) They are only important during extreme weather

Which of the following influences the distribution of species in an ecosystem?

A) Only biotic factors

D) Only abiotic factors

B) Geographic isolation

C) Both biotic and abiotic factors

What role do biotic factors play in an ecosystem?

A) They are unimportant

C) They interact with abiotic factors to support life

D) They only exist in communities

B) They provide nutrients to the soil

Which biome is known for having the most diverse plant life?

A) Desert

D) Boreal forest

C) Tropical rainforest

B) Tundra

What is generally true about biodiversity in temperate regions?

A) It is lower than in tropical regions

B) It is the same as in polar regions

C) It is the highest in the world

D) It varies randomly

Which environmental factor is most critical in determining the type of biome?

D) Altitude

A) Soil type

B) Average Temperature and precipitation

C) Latitude

What is a common feature of tropical biomes?

B) High biodiversity

D) Few plant species

C) Limited rainfall

A) Low temperatures

What is commensalism?

B) Both species benefit

D) Both species compete for the same resources

A) One species benefits while the other is unaffected

C) One species is harmed while the other benefits

In an ecosystem, what does competition refer to?

D) Species living independently without interaction

B) Species fighting for limited resources

A) Both species benefiting from each other

C) One species benefiting at the expense of another

What type of relationship occurs when one organism feeds on another?

B) Predation

A) Mutualism

C) Commensalism

D) Parasitism

How does mutualism benefit both species involved?

A) One species gains while the other loses

D) They have no effect on each other

C) They compete for the same resources

B) Both species gain advantages from the interaction

Which of the following interactions is an example of parasitism?

D) A lion hunting a zebra

B) A bee pollinating a flower while feeding on nectar

A) A bird nesting in a tree without harming it

C) A tick feeding on the blood of a mammal

Which of the following interactions is an example of parasitism?

C) A tick feeding on the blood of a mammal

B) A bee pollinating a flower while feeding on nectar

A) A bird nesting in a tree without harming it

D) A lion hunting a zebra

Which interaction is an example of mutualism?

B) A clownfish living among the tentacles of a sea anemone

A) A lion hunting a gazelle

C) A hawk preying on a rabbit

D) A tapeworm living in the intestines of a dog

What type of relationship is illustrated by a barnacle attaching itself to a whale?

C) Parasitism

A) Mutualism

B) Commensalism

D) Predation

What is an example of predation?

B) A cat catching and eating a mouse

C) A tree providing shade to small plants

D) A fungus growing on a decaying log

A) A bee visiting a flower for nectar

Which of the following describes mutualism?

A) One species benefits while the other is harmed

C) One species is unaffected while the other benefits

D) Species compete for the same resources

B) Both species benefit from the interaction

Which of the following best defines an ecosystem?

D) A single organism in a habitat

A) A collection of organisms of the same species

B) A community or multiple communities and its abiotic environment

C) A biome with no interactions

Which factor is crucial for defining terrestrial biomes?

C) Climate

B) Length of day

A) Soil composition

D) Type of vegetation

What is the main characteristic of a grassland biome?

C) Dominance of grasses and few trees

A) Dominance of trees

B) High levels of precipitation

D) Extremely low biodiversity

In which biome would you most likely find polar bears?

B) Desert

C) Grassland

D) Tropical rainforest

A) Tundra

What is the primary cause of climate?

A) Ocean currents

C) Altitude

B) Latitudes

D) Soil types

Which biome is characterized by high temperatures and little rainfall?

B) Tundra

D) Grassland

C) Desert

A) Forest