Ecology
Energy, Producers, Consumers
Energy flow in Ecosystems
Cycles of Matter
Random
100
a group of similar organisms that can interbreed and produce offspring.
What is a species?
100
Algae, certain bacteria, and plants that capture energy from sunlight or chemicals and convert it into energy
What is autotrophs?
100
Series of steps in which organisms transfer energy by eating and being eaten
What is a food chain?
100
When elements pass from 1 organism to another and amoung parts of the biosphere through closed loops.
What is biochemical cycle
100
Physical components of an ecosystem are known as:
What are abiotic factors
200
A group of individuals that belong to the same species and live in the same area.
What is a population
200
First producers of energy rich compounds that are later used by other organisms
What is primary producers?
200
Floating algae
What is phytoplankton?
200
The chemical substance that an organism needs to sustain life.
What is nutrients
200
The biological influence on organisms
What are biotic factors
300
A bunch of populations that live together in a defined area.
What is a community
300
Organisms that acquire energy from other organisms
What is heterotrophs
300
Herbivores and predators that live in the same ecosystem
What is a food web?
300
bacteria convert nitrogen gas in to ammonia.
What is nitrogen fixation
300
these animals kill other animals exclusively for food.
What are carnivores
400
All the organisms that live in a place, together with their physical environment.
What is an ecosystem
400
Another word for heterotrophs
What is consumers?
400
Diverse group of small swimming animals
What is zoo plankton?
400
Other soil bacteria containing energy by converting nitrates into nitrogen which is released into the atmosphere?
What is denitrification
400
these organisms get food by chemically breaking down organic matter.
What are decomposers
500
A group of ecosystems that live is similar climates.
What is a biome
500
Carnivores, Herbivores, Scavengers, Omnivores, Decomposers, and Detritivores
What is the six type of consumers?
500
Each step in a food chain
What is trophic level?
500
The nutrient whose supply limits productivity is called.
What is limiting nutrients
500
these organisms, such as worms, feed on particles by grinding or breaking them down into smaller pieces.
What are detritivores
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