Envi Science [LECTURE 2.2]

Create an image of a vibrant ecosystem with diverse plants and animals, illustrating energy flow, sun, and pollution effects, in a visually engaging style.

Understanding Energy in Ecosystems

Test your knowledge on the fundamentals of environmental science with a focus on energy transfer and ecosystem dynamics. This quiz covers key concepts such as thermodynamics, productivity, pollution, species interactions, and community structures.

Key Topics:

Thermodynamics and energy conversion
Primary and secondary productivity
Effects of pollution on ecosystems
Species interactions and community dynamics

45 Questions11 MinutesCreated by ExploringNature101

Law of Thermodynamics


"In any energy conversion, you will end up with less usable energy than you started."
"Energy can neither be created nor destroyed but may be converted from one form to another."

Results of random vibrational motion of atoms and molecules.

Primary(autotrophs) and secondary (consumers) productivity

The total amount of chemical energy provided by photosynthesis

The energy produced from photosynthesis minus the energy consumed through respiration.

Maintenance cost of energy conversion

Depends on amount of solar radiation received, moisture or precipitation, temperature, supply of nutrients.

Abbreviations


TRF
GPP
NPP

Pollution and Ecosystem Function


Mostly the result of human activities (human-made)
Volcanic eruption release gasses that harm living organisms
Matter or energy that degrades the environment.
Toxins may increase in concentration as they are passed up the food chain, a process called __________.

Species Interaction


Two species consume the same materials and resources in the environment.
One species consume the other species to acquire resources.
One species derives its resources from another species.
Both species benefit from interaction.
One species require the aid of another species while there is no negative or positive effect on the other species

Community


Place where organisms lives.
Physical space occupied & functional of an organism in a community, including its trophic level, position in the environmental gradient and other conditions.
Range of a niche dimension occupied by a population or species.
Overlap or sharing of niche space by two or more species leading to competition.
Group of species that make their living by expounding the same class of living by exploiting the same class of resources in a similar way.
Species that occupy the same niche in different geographical regions

Properties of a Community


1.
2.
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6.

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