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Science 7th grade

Mrs Wurm

QuestionAnswer
What is the correct order of ecological organization, from smallest to largest? organism-population-community-ecosystem- biosphere
All if the rabbits in a field represent a(n)? Poulation
biotic factor are what? Trees, plants, animals, bacteria, fungi
What is carrying capacity? the largest number of organisms an environment can support long term.
Examples of density-independent limiting factor? Flooding, other natural disasters, weather, human activities
In a food chain, what happens to energy as it moves up to trophic levels? it decreases
Which type of symbiosis benefits both organisms ? Mutualism
A forest fire that kills many deer in an area is an example of what? density- independent limiting factor
What is the part of Earth that supports all life? Biosphere
Another name from an autotroph is ........ Producer
What is population? A group of the same species living in the same area
What is the difference between biotic and abiotic ? biotic is living and abiotic is non living
what happens when a population goes above its carrying capacity ? it would go down because there are not enough resources
density-dependent factor is what? food, water, space, predation, disease ( effects increase with population size)
What is the three types of Symbiosis ? Mutualism, Commensalism, Parastism
Mutualism both benefit
Commensalism one benefits, other is unaffected
Parasitism one benefits, and other is harmed
Negative Human Impacts pollution, deforestation, habitat loss, climate change
Positive Human Impacts Conservation, recycling, sustainable practices, protecting biodiversity
Limiting Factors Conditions that keep populations from growing too large.
Abiotic Factor nonliving things (water, sunlight, soil, temperature, air)
Created by: maplelakesped
 

 



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