ecology-The scientific study of interactions among organisms and between organisms and their environment, or surroundings.
biosphere-Contains the combined portions of the planet in which all of life exists, including land, water, and air, or atmosphere.
species-A group of organisms so similar to one another that they can breed and produce fertile offspring.
populations-Groups of individuals that belong to the same species and live in the same area.
communities-Assemblages or different populations that live together in a defined area.
ecosystems-Assemblages or different populations that live together in a defined area.
biome-Assemblages or different populations that live together in a defined area.
atotrophes-Only plants, some algae, and certain bacteria that can capture energy from sunlight or chemicals and use that energy to produce food
producers-Those that can capture energy from sunlight and those that capture chemical energy.
Photosynthesis-Producers
Those that can capture energy from sunlight and those that capture chemical energy.
Photosynthesis
-Autotrophs use light energy to power chemical reactions that convert carbon dioxide and water into oxygen and energy-rich carbohydrates such as sugars and starches.
Chemosythesis-When organisms use chemical energy to produce carbohydrates.
Heterotrophs-Organisms that rely on other organisms for their energy and food supply
Consumers-A.K.A. Heterotrophs
Herbivores-Heterotrophs that obtain energy by eating only plants
Carnivores-Eat animals
Omnivores-Eat both plants and animals
Detritovores-Feed on plant and animal remains and other dead matter
Decomposers-Breaks down organic matte
Food chain-A series if steps in which organisms transfer energy by eating and being eaten.
Food web-When the feeding relationships among the various organisms in an ecosystem form a network of complex interactions
Trophic level-Each step in a food chain or food web
Ecological pyramid-A diagram that shows the relative amounts of energy or matter contained within each trophic level in a food chain or food web.
Biomass-PLAY
Ecological pyramid
A diagram that shows the relative amounts of energy or matter contained within each trophic level in a food chain or food web.
Biomass
-The total amount of living tissue within a given trophic level
Biogeochemical cycles-When elements, chemical compounds, and other forms of matter are passed from one organism to another and from one part of the biosphere to another.
Evaporation-The process by which water changes from liquid form to an atmospheric gas.
Transpiration-The process of which water can also enter the atmosphere by evaporating from the leaves of plants.
Nutrients-PLAY
Transpiration
The process of which water can also enter the atmosphere by evaporating from the leaves of plants.
Nutrients
-All the chemical substances that an organism needs to sustain life.
Nitrogen fixation-Such bacteria, which live in the soil and on the roots of plants called legumes, convert nitrogen gas into ammonia.
Denitrification-Nitrogen fixation
Such bacteria, which live in the soil and on the roots of plants called legumes, convert nitrogen gas into ammonia.
Denitrification
-The process of which other soil bacteria convert nitrates into nitrogen gas.
The biosphere-All of life on Earth exists in a region known as
Community-Groups of different species that live together in defined area make up a(an)
Food chain-The series of steps in which a large fish eats a small fish that has eaten algae is a
Biomass pyramid-The total mass of living tissue at each trophic level can be shown in a(an)
Biogeochemical cycles-Nutrients move through an ecosystem in
Phosphorus cycle-What biogeochemical cycle does NOT involve a stage where the chemical enters the atmosphere?
Limiting nutrient-When an ecosystem is limited by a single nutrient that either is scarce or cycles very slowly, this substance is called a(an)
i hope this helps on this question and the rest of your homework/quiz
