WorksheetsScience Olympiad Ecology
Total questions: 15
Worksheet time: 15mins
Which of the following best describes an ecological niche?
The physical space a species occupies
The role a species plays in its ecosystem
The food a species eats
The lifespan of a species
What term describes a group of individuals of the same species living in a particular area?
Community
Population
Ecosystem
Biome
Which process in the water cycle involves the movement of water from plants to the atmosphere?
Evaporation
Transpiration
Condensation
Precipitation
Which of the following is an example of mutualism?
A) A lion hunting a zebra
B) A bee pollinating a flower
C) A parasite living on a host
D) A bird eating insects off a buffalo
Which of the following is a characteristic of a desert biome?
High rainfall
Low temperature
Sparse vegetation
Dense forests
What is the main function of chlorophyll in plants?
Absorb water
Absorb sunlight
Store nutrients
Protect from herbivores
Which of the following is a primary consumer in a food chain?
Grass
Rabbit
Fox
Eagle
What is the process by which nitrogen is converted into a form that plants can use?
Photosynthesis
Nitrogen fixation
Respiration
Decomposition
Which of the following is an example of a renewable resource?
Coal
Oil
Wind
Natural gas
What is the main cause of the greenhouse effect?
Deforestation
Carbon dioxide emissions
Ozone depletion
Water pollution
Which of the following processes releases oxygen into the atmosphere?
Photosynthesis
Respiration
Combustion
Decomposition
What is the term for the gradual change in species composition in a given area over time?
Evolution
Succession
Adaptation
Migration
Which of the following is a density-dependent factor that can affect population size?
Natural disasters
Disease
Climate
Habitat destruction
Which of the following best describes the concept of carrying capacity in an ecosystem?
The maximum number of species an ecosystem can support
The maximum population size an environment can sustain
The total biomass of an ecosystem
The diversity of species in an ecosystem
What is the primary role of decomposers in an ecosystem?
To produce energy through photosynthesis
To break down dead organic matter
To compete with primary consumers
To provide shelter for other organisms
