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WorksheetsEcology Regents
Total questions: 25
Worksheet time: 25mins
Study of interactions between organisms and their environment
niche
community
ecology
ecosystem
In this photo, what is an abiotic factor?
Deer
Grass
rain
Organisms that obtains its energy from abiotic sources, such as sunlight or inorganic chemicals
Autotroph
Heterotroph
Omnivore
Carnivore
What is the original source of almost all energy in most ecosystems?
carbohydrates
sunlight
water
carbon
What is this picture describing?
It is describing natural selection.
It is describing direct competition between flamingos and ducks.
It is describing abiotic factors of the tundra.
It is describing the niche of each bird.
The northern elephant seal was almost hunted to extinction in the 1800s. By the late 1890s, approximately one hundred seals were left, reducing the gene pool of the population. What will be the consequence of this reduction?
Competition within the population will increase.
The surviving elephant seals will be better able to adapt.
Inbreeding will be less frequent among the remaining population.
The elephant seals will be more vulnerable to environmental change.
The presence of wastes, such as plastic bags and motor oil, in lakes and streams miles away from developed areas suggests that
. ecosystems are interconnected and human action can alter ecosystem equilibrium.
recycling programs have failed to conserve biotic resources.
natural processes can alter ecosystem stability.
direct harvesting practices have led to irreversible destruction of ecosystems.
Diagram that shows all the feeding relationships of organisms within an ecosystem. The more connections, the more stable the ecosystem.
Food Web
Line Graph
Energy Pyramid
Ecosystem
The number of different plants and animal found within an area. The more varied an ecosystem is, the more stable the ecosystem.
Biodiversity
Homeostasis
Biotic
Biosphere
Organisms, known as producers, that synthesize their own food (glucose) by using the process of photosynthesis.
Autotroph
Heterotroph
Carnivore
Chloroplast
All of the living populations that are found and interact within an ecosystem.
Population
Species
Community
Ecosystem
The non-living factors that influence living organisms such as water, temperature, soil, and atmosphere.
Abiotic
Biotic
Biosphere
Non Renewable Resources
An organism that feeds exclusively on plant material, example – a deer.
Carnivore
Herbivore
Omnivore
Producer
The living organisms found within an ecosystem.
Abiotic
Biotic
Ecosystem
Biodiversity
The realized role that an organism fills within an ecosystem.
Ecosystem
Habitat
Niche
Producer
All the living organisms that are found on the Earth.
Ecosystem
Biosphere
Population
Biotic
Organisms that must take in preformed nutrients (organic compounds).These consumers may ingest, (Eat) absorb, or engulf their nutrients.
Autotroph
Heterotroph
Biotic
Carnivore
All living organisms of one species that live and interact within an ecosystem.
Population
Biosphere
Community
Ecosystem
A model that shows the flow of energy in an ecosystem from producers to consumers. As energy flows up this model, it decreases being lost as heat.
Food Web
Food Chain
Energy Pyramid
Line Graph
The most biodiverse and stable stage of ecological succession.
Pioneer Species
Climax Community
Shrubs and Grasses
Predator
Those resources that are unable to be replaced and, once used up,are gone. Fossil fuels are examples of this type of resource.
Renewable Resources
Non Renewable Resources
Sun Energy
Biotic
Which of the following best describes the role of decomposers in an ecosystem?
They produce energy through photosynthesis.
They consume primary producers.
They break down dead organic matter.
They compete with herbivores for food.
In an experiment, a scientist wants to study the effect of temperature on the rate of photosynthesis in aquatic plants. Which of the following is the independent variable?
The type of aquatic plant used
The temperature of the water
The amount of sunlight provided
The rate of photosynthesis
What is the primary reason for the decline in biodiversity in many ecosystems?
Increased levels of carbon dioxide
Habitat destruction due to human activities
Natural selection processes
Increased competition among species
Which of the following is an example of a mutualistic relationship in an ecosystem?
A lion hunting a zebra
A bee pollinating a flower
A fungus decomposing a log
A parasite infecting a host
