Ecological Components Quiz

Explore biotic, abiotic factors & ecological concepts with these 18 questions. Test yourself on ecosystems, species interactions & more.

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Which of the following is an example of a biotic component in an ecosystem?

Water

Rock

Tree

Sunlight

Which of the following is a primary producer in a marine ecosystem?

Shark

Seaweed

Squid

Tuna

Which of the following is an example of a secondary consumer?

Rabbit

Grasshopper

Fox

Snake

What is an example of a pioneer species in a barren landscape?

Oak tree

Lichen

Wolf

Deer

What is the term for the variety of different species in an ecosystem?

Biodiversity

Symbiosis

Eutrophication

Succession

What is the term for the process by which water vapor is released from plants into the atmosphere?

Transpiration

Evaporation

Condensation

Precipitation

What is the term for the process by which decomposers break down dead organic matter into simpler substances?

Photosynthesis

Decomposition

Fermentation

Digestion

Which of the following best describes a keystone species in an ecosystem?

A species that is at the top of the food chain

A species that has a disproportionately large effect on its environment

A species that is only found in specific ecosystems

A species that is very rare and endangered

Which of the following is a characteristic of a climax community?

High biodiversity

Rapid growth of pioneer species

Constant disturbance

Low species competition

#10

What is the primary role of decomposers in an ecosystem?

To provide energy to producers

To convert sunlight into chemical energy

To break down organic matter into simpler compounds

To regulate population sizes

#11

What is the primary role of a trophic level in an ecosystem?

To produce oxygen

To regulate temperature

To transfer energy and nutrients

To control population sizes

#12

Which of the following is an example of a mutualistic relationship in ecology?

Lion hunting a zebra

Parasite feeding on a host

Bee pollinating a flower

Deer grazing on grass

#13

What is an example of an abiotic factor in a terrestrial ecosystem?

Grass

Rainfall

Bacteria

Deer

#14

What is the primary function of a watershed in an ecosystem?

To regulate climate

To provide habitat for aquatic organisms

To filter pollutants from water

To control erosion and sedimentation

#15

Which of the following is NOT a greenhouse gas?

Carbon dioxide

Methane

Oxygen

Water vapor

#16

Which of the following is a characteristic of an oligotrophic lake?

High nutrient content

Low oxygen levels

High biodiversity

Low nutrient content

#17

What is the term for the process of converting atmospheric nitrogen into a form usable by plants?

Photosynthesis

Nitrification

Nitrogen fixation

Ammonification

#18

Which of the following is a characteristic of a primary succession?

Occurs on bare rock or soil

Fast colonization by established species

Presence of mature soil

Absence of pioneer species