Biology Unit 2: Ecology/Ecosystems
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each of the black spaces below before clicking
on it to display the answer.
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| What is Ecology? | The study of interactions between organisms and their environment.
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| List the levels of organization in order from smallest level to largest level (from organisms to biosphere)... | Organisms, Population, Community, Ecosystems, Biosphere
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| What is a species? | A group of living organisms consisting of similar capable of exchanging genes or interbreeding
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| List all of the ways that populations interact in a community... | Produce fertile offspring, compete for resources (food, shelter, mates, etc.)
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| Example of an ecosystem... | A pond
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| What kind of things do ecosystems include? | Living and nonliving elements. (Examples; water, air, sunlight, microorganisms, insects, animals)
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| What is a community? | Several interacting populations that inhabit a common environment
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| How is a community different from a population? | Population only has one species, where a community has many.
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| What is a biome? | A group of ecosystems
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| Four examples of abiotic factors... | Water, light, atmosphere, temperature
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| What is the name for all living factors present in an ecosystem? | Biotic
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| What are some things that organisms rely on each other for? | Energy, Nutrients, Protection
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| Describe the difference between a habitat and a niche... | Habitat: a place where an organism lives. Niche: Something a species is good at or has a knack for.
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| Limiting Factors with three examples... | Something that limits an organisms distribution. Ex. Competition, prey, predators, etc.
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| What is the main source of energy for all life on earth? | The Sun
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| What is the name of the organism that makes its own food? (both names) | Autotroph/Producer
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| How does an organism make its own food? What is the process called? | Photosynthesis: converting the sun's energy into chemical energy which the organism can use
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| What is the name for an organism that must acquire its energy from other organisms? (both names) | Consumer/ Heterotroph
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| What is a herbivore? | Only consumes plants. Ex. Deer
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| What is a carnivore? | Only consumes meats. Ex. Lion
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| What is an omnivore? | Consumes both plants and meats. Ex Bears
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| What is a decomposer? | Breaks down dead or decaying organic matter. They are important for cycling nutrients back into the ecosystem. Ex. Fungi
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| How does a food chain differ from a food web? | A food chain only flows in one direction where a food web can branch off into many directions.
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| How does energy flow in an ecosystem? (Think sun to autotrophs to heterotrophs) | The sun gives energy to autotrophs the heterotrophs then consume the autotrophs and uses its energy
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| How are nutrients different then energy, in regards to how they are passed in in the ecosystem... | Nutrients can be reused, but energy only flows in one direction
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| What processes are found in the Carbon Cycle? | Photosynthesis, cellular respiration, combustion
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| What is a mutualism relationship? | Both species benefit. (They work together) Ex. Cleaning fish and sharks
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| What is Parasitism? | Only one species benefits and the other is harmed
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| What is Commensalism? | One species benefits and the other is neither benefit or harmed.
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| What is the general trend in biodiversity in biomes as the latitude moves from the arctic region towards the equator? | Biomass increases as you work your way towards the equator.
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| What is Commensalism? | One species benefits and the other is neither benefit or harmed.
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| What is the general trend in biodiversity in biomes as the latitude moves from the arctic region towards the equator? | Biomass increases as you work your way towards the equator.
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