Ecosystem and Water Cycle Comprehensive Assessment

Which component represents the living organisms in an ecosystem?

• Abiotic components
• Biotic components
• Energy pyramid
• Food chain

In a food chain, which group of organisms produces its own food using sunlight?

• Carnivores
• Herbivores
• Producers
• Scavengers

What percentage of energy typically transfers between trophic levels in an ecosystem?

• 5%
• 10%
• 25%
• 50%

Which nutritional relationship describes two organisms mutually benefiting without harming each other?

• Predation
• Competition
• Commensalism
• Mutualism

What percentage of Earth's surface is covered by water?

• 29%
• 50%
• 71%
• 97%

Which water cycle process transforms liquid water into water vapor?

• Condensation
• Precipitation
• Evaporation
• Infiltration

What is the primary energy source for most ecosystems?

• Wind
• Water
• The Sun
• Geothermal heat

Which type of consumer eats both plants and animals?

• Herbivores
• Carnivores
• Omnivores
• Scavengers

At what temperature does water typically melt?

• 0°C
• 10°C
• 25°C
• 100°C

What represents the smallest unit of life in an ecosystem?

• Population
• Community
• Individual
• Species