Biotic and Abiotic Factors in Ecosystems

Questions and Answers

What is a biotic factor?

Amount of rainfall

A measure of water temperature

Non-living parts of an ecosystem

Biological influence on organisms within an ecosystem (correct)

What is an abiotic factor?

Non-living parts of an ecosystem (correct)

Animals hunted for food

Biological influence on organisms

Living organisms in an ecosystem

What is humidity?

Amount of water vapor in the air

What does temperature measure?

How hot or cold something is Signup and view all the answers

What is pH?

A measure of how acidic or basic a substance is Signup and view all the answers

What is sunlight?

Light from the sun Signup and view all the answers

What is rainfall?

Precipitation Signup and view all the answers

What is dissolved oxygen?

Measure of water quality indicating free oxygen dissolved in water Signup and view all the answers

What does dissolved salt refer to?

Level of salts that is dissolved in water Signup and view all the answers

What is turbidity?

A measure of how clear water is Signup and view all the answers

What is canopy cover?

The amount of ground covered by the branches, leaves, and stems of plants expressed as a percentage Signup and view all the answers

What is soil?

A mixture of mineral particles and organic material that covers the land Signup and view all the answers

What is prey?

Animal hunted or caught for food Signup and view all the answers

What is a predator?

The organism that does the killing in a predation interaction Signup and view all the answers

What is a competitor?

Organisms that require the same resources from the same habitat Signup and view all the answers

What is a producer?

An organism that can make its own food Signup and view all the answers

What is a 1st order consumer?

An organism that only eats producers Signup and view all the answers

What is a 2nd order consumer?

An organism that eats 1st order consumers Signup and view all the answers

What is a decomposer?

An organism that breaks down wastes and dead organisms Signup and view all the answers

What is a population?

A group of individuals that belong to the same species and live in the same area Signup and view all the answers

Study Notes

Biotic and Abiotic Factors

Biotic factors include all living organisms and their interactions within an ecosystem.
Abiotic factors encompass non-living components such as soil, climate, and rainfall.

Key Definitions

Humidity: Represents the concentration of water vapor present in the atmosphere.
Temperature: Refers to the degree of heat measured in an environment, indicating how hot or cold it is.
pH: Indicates the acidity or basicity level of a substance, important for various biological processes.
Sunlight: The natural light emitted by the sun, essential for photosynthesis in producers.
Rainfall: A form of precipitation that contributes to water availability in ecosystems.
Dissolved Oxygen: A critical water quality indicator that reflects the amount of oxygen available for aquatic organisms.
Dissolved Salt: Refers to the concentration of salts in water, influencing aquatic life.
Turbidity: Measures water clarity, indicating the presence of suspended particles.

Ecological Roles

Canopy Cover: Percentage of ground covered by plant foliage, impacting light penetration and habitat availability.
Soil: Comprised of mineral particles and organic matter, serving as the foundation for terrestrial plant growth.
Prey: Organisms caught or hunted by predators for food.
Predator: The species that hunts and kills other organisms for sustenance.
Competitor: Organisms that vie for similar resources, affecting population dynamics and ecosystem balance.
Producer: Organisms, mainly plants, capable of synthesizing their own food through photosynthesis.

Consumer Levels

1st Order Consumer: Herbivores that primarily feed on producers.
2nd Order Consumer: Carnivores that consume 1st order consumers for energy.

Decomposers and Populations

Decomposer: Organisms that break down organic waste and dead matter, recycling nutrients back into the ecosystem.
Population: A collective of individuals of the same species inhabiting a specific area, crucial for studying ecological dynamics.

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Description

This quiz explores the essential concepts of biotic and abiotic factors in ecosystems, highlighting their definitions and roles. Learn about key terms such as humidity, temperature, and dissolved oxygen to enhance your understanding of ecological dynamics.