Ecosystems and Their Components
48 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Agricultural systems are solely focused on crop cultivation.

False

Agro Economy Ecosystem includes economic, environmental, and social components involved in agriculture.

True

Decomposers and detritivores are important for recycling nutrients back into the ecosystem.

True

Omnivores only eat plants.

<p>False</p> Signup and view all the answers

Energy is consistently distributed at each level of the food chain in a perfect manner.

<p>False</p> Signup and view all the answers

The aquarium ecosystem is primarily used for recreation and decoration.

<p>True</p> Signup and view all the answers

Hydrology ecosystems are examples of artificial ecosystems created for sustainable water recovery.

<p>True</p> Signup and view all the answers

Food chains represent a linear flow of energy and nutrients between organisms.

<p>False</p> Signup and view all the answers

A natural ecosystem does not require the intervention of humans.

<p>True</p> Signup and view all the answers

The grazing food chain starts with detritus feeding organisms.

<p>False</p> Signup and view all the answers

Microconsumers are large consumers such as herbivores and carnivores.

<p>False</p> Signup and view all the answers

Decomposers are organisms that absorb nutrients from the environment without breaking down organic matter.

<p>False</p> Signup and view all the answers

Energy flow in an ecosystem is based on the laws of thermodynamics.

<p>True</p> Signup and view all the answers

Water is vital for all living organisms and plays a crucial role in maintaining ecosystem health.

<p>True</p> Signup and view all the answers

Producers are able to make their own food and are known as heterotrophs.

<p>False</p> Signup and view all the answers

The pyramid of energy only illustrates the amount of sunlight available in an ecosystem.

<p>False</p> Signup and view all the answers

Soil temperature and moisture levels are irrelevant to the health of the ecosystem.

<p>False</p> Signup and view all the answers

The units of energy at each trophic level decrease by a factor of 10.

<p>True</p> Signup and view all the answers

Detritus food chains start with living plants.

<p>False</p> Signup and view all the answers

Air is considered an abiotic component that influences the distribution of organisms in an ecosystem.

<p>True</p> Signup and view all the answers

The nutrient cycle refers to a linear pathway of nutrient absorption without recycling.

<p>False</p> Signup and view all the answers

Ecological pyramids illustrate the distribution of energy among different trophic levels.

<p>True</p> Signup and view all the answers

The pyramid of biomass is a graphical representation of the biomass present at different trophic levels.

<p>True</p> Signup and view all the answers

Temperature has no effect on the metabolic rates of organisms in an ecosystem.

<p>False</p> Signup and view all the answers

In an ecological representation, the pyramid of numbers illustrates the total number of organisms at each trophic level.

<p>True</p> Signup and view all the answers

Nitrogen fixation refers to the process of converting nitrogen gas (N2) into ammonia (NH3) through biological means only.

<p>False</p> Signup and view all the answers

Hyperparasites and producers are both found at the base of the pyramid of numbers.

<p>False</p> Signup and view all the answers

The advantage of the pyramid of numbers includes providing a simple overview of changes in an ecosystem over time.

<p>True</p> Signup and view all the answers

Industrial nitrogen fixation is a natural phenomenon that occurs without human intervention.

<p>False</p> Signup and view all the answers

Evaporation is the process where water vapor turns into liquid water.

<p>False</p> Signup and view all the answers

Producers are responsible for forming the base of the food chain by converting sunlight into organic compounds.

<p>True</p> Signup and view all the answers

Herbivores are placed above producers in the pyramid of numbers.

<p>True</p> Signup and view all the answers

All organisms, regardless of their size, are included in the pyramid of numbers, which can sometimes lead to inverted pyramids.

<p>True</p> Signup and view all the answers

Climate does not affect the water cycle as it operates independently of environmental factors.

<p>False</p> Signup and view all the answers

Juvenile or immature forms of organisms are fully accounted for in the pyramid of numbers.

<p>False</p> Signup and view all the answers

Decomposers play a role in returning nutrients back into soil and water.

<p>True</p> Signup and view all the answers

Topography has no effect on the timing and magnitude of evapotranspiration.

<p>False</p> Signup and view all the answers

Precipitation results from water-laden clouds falling back to the Earth's surface.

<p>True</p> Signup and view all the answers

Human activity has no impact on water flow and quality in the water cycle.

<p>False</p> Signup and view all the answers

Water is essential for all life processes and supports growth and development.

<p>True</p> Signup and view all the answers

Phosphorus is present in the atmosphere as a major component of the phosphorus cycle.

<p>False</p> Signup and view all the answers

Plants absorb phosphorus from the soil and water through their roots.

<p>True</p> Signup and view all the answers

The phosphorus cycle includes geological uplift that moves phosphorus-rich sediments from land to the ocean.

<p>False</p> Signup and view all the answers

Decomposition of microorganisms plays a role in returning phosphorus to its inorganic form.

<p>True</p> Signup and view all the answers

Excess phosphorus in water systems due to human activities can lead to harmful algal blooms.

<p>True</p> Signup and view all the answers

Calcium phosphate is not a common form of phosphorus found in rocks.

<p>False</p> Signup and view all the answers

Animals obtain phosphorus solely by drinking water.

<p>False</p> Signup and view all the answers

Phosphorus is essential for the formation of DNA, RNA, and ATP.

<p>True</p> Signup and view all the answers

Study Notes

Ecosystems

  • Ecosystems include all living organisms (biotic factors) and their physical environment (abiotic factors).
  • They provide stable climates, breathable air, and resources like food and materials, as well as protection.
  • Biotic factors include living things like plants, animals, fungi, protists, archaea, and bacteria.
  • Abiotic factors are non-living components such as chemicals, physical conditions, and resources that affect living organisms.
  • Major abiotic factors include temperature, air, water, sunlight, humidity, and soil conditions.
  • Terrestrial ecosystems are land-based communities, such as forests, grasslands, tundra, and deserts.
  • Aquatic ecosystems are water-based communities, including freshwater and marine ecosystems.
  • Freshwater ecosystems are bodies of water with low salt content, such as lakes, ponds, rivers, and wetlands.
  • Marine ecosystems are saltwater environments, such as oceans and seas.

Estuaries, Mangroves, and Wetlands

  • Estuaries are where freshwater mixes with saltwater.
  • They support many marine species and protect coastal areas.
  • Mangroves are coastal forests in tropical and subtropical regions.
  • Mangroves have unique adaptations like prop roots and pneumatophores.
  • They are biodiversity hotspots, absorbing carbon dioxide and supporting various species.
  • Wetlands are covered by water or saturated with water, either seasonally or permanently, and have a variety of forms.

Types of Ecosystems

  • Terrestrial ecosystems include forests, grasslands, tundra, and deserts.
  • Aquatic ecosystems include freshwater and marine ecosystems.
  • Marine ecosystems include coral reefs, which are underwater structures formed by coral skeletons, protecting coastlines.
  • Freshwater ecosystems include ponds, lakes, rivers, and wetlands.

Artificial Ecosystems

  • Artificial ecosystems are man-made ecosystems such as botanical gardens, orchards, aquariums, zoos, and urban areas.
  • They are not self-sustaining and need human intervention.
  • Urban areas are artificial ecosystems combining natural and human elements.

Food Chains and Trophic Levels

  • A food chain depicts the transfer of energy and nutrients between organisms.
  • Trophic levels represent the feeding positions in a food chain.
  • Producers are at the bottom, followed by primary consumers (herbivores), secondary consumers (carnivores), and tertiary consumers (apex predators).
  • Decomposers break down dead matter and recycle nutrients.
  • Grazing food chains begin with producers, while detritus food chains start with dead organic matter.

Nutrient Cycling

  • Nutrient cycles are cyclic pathways where nutrients pass through different components of the environment.
  • Four major cycles are the carbon, nitrogen, phosphorus, and water cycles.
  • The carbon cycle involves the exchange of carbon between the atmosphere, oceans, land, and living organisms.
  • The nitrogen cycle converts inert atmospheric nitrogen into usable forms for living organisms.
  • The phosphorus cycle moves phosphorus through soil, water, plants, and animals.
  • The water cycle involves the movement of water between the Earth's surface and atmosphere.

Ecological Pyramids

  • Ecological pyramids are graphical representations of the relationship between organisms in different trophic levels.
  • These include pyramids of energy, biomass, and numbers.
  • Pyramids of energy illustrate the flow of energy from one trophic level to the next.
  • Pyramid of biomass shows the total biomass present at each level.
  • Pyramid of numbers shows populations in different trophic levels.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

Ecosystem PDF

Description

This quiz explores ecosystems, focusing on biotic and abiotic factors, and their significance. It delves into various terrestrial and aquatic ecosystems, including freshwater and marine environments. Test your knowledge of the intricate relationships between living organisms and their physical surroundings.

More Like This

Environmental Science and Ecosystems Quiz
6 questions
Environmental Factors in Ecosystems
16 questions
Use Quizgecko on...
Browser
Browser