Biology Vocab Quiz 2

What is a food web?

• A method of measuring past climate conditions using ice cores

• A complex network of interconnected food chains in an ecosystem

• A linear sequence of organisms where nutrients and energy pass as one organism eats another

• A process of breaking down organic matter into simpler compounds

Which of the following is a greenhouse gas?

• Nitrogen

• Helium

• Carbon Dioxide

• Oxygen

What does bioaccumulation refer to?

• The increase in concentration of a substance in an organism over time

• The increase in concentration of a substance in a food chain

• The breakdown of organic matter by decomposers

• The loss of habitat due to human activities

What is the primary concern with PFAS?

• They contribute to ozone layer depletion

• They are persistent organic pollutants that accumulate in the environment

• They cause immediate harm to all wildlife

• They are a major source of greenhouse gases

What is habitat fragmentation?

• The increase in species diversity within a habitat

• The complete destruction of a habitat

• The division of habitats into smaller, isolated patches

• The natural expansion of a habitat

What is the main cause of ocean acidification?

• Increased volcanic activity

• Excessive fishing

• Absorption of carbon dioxide from the atmosphere

• Oil spills

Which of the following is an example of a keystone species?

• Grass in a savanna

• Rabbits in a meadow

• Wolves in Yellowstone National Park

• Ants in a rainforest

What is the primary function of the ozone layer?

• To regulate the Earth's magnetic field

• To trap heat in the Earth's atmosphere

• To protect the Earth from harmful ultraviolet radiation

• To provide oxygen for living organisms

What is the role of decomposers in an ecosystem?

• To compete with primary producers for resources

• To break down dead organisms and recycle nutrients

• To provide shelter for other organisms

• To produce energy through photosynthesis

Which process is primarily responsible for the greenhouse effect?

• Absorption and re-emission of infrared radiation by gases

• Reflection of sunlight by the Earth's surface

• Deforestation and habitat loss

• Evaporation of water from oceans