Interactions Among Living Things Study Guide · 2020. 1. 3. · Interactions Among Living Things...
Transcript of Interactions Among Living Things Study Guide · 2020. 1. 3. · Interactions Among Living Things...
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Interactions Among Living Things Study Guide
Question Answer Score
Ecology The study of how living things & their environment interact.
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Biosphere All the ecosystems on Earth. 0 1 2
Ecosystem All the interacting living and nonliving things in an area.
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Community All the populations living in an area. 0 1 2
Population All the organisms of one species that live in an area at the same time.
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Organism Individual living thing. 0 1 2
Abiotic Factors Nonliving facts in an ecosystem Ex. Light, water, soil, temperature, air &
minerals
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Biotic Factors Living parts of an ecosystem Ex. Plants, animals, fungi, protists & bacteria
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Habitat The place where an organism lives. 0 1 2
Niche An organism’s role in the ecosystem. 0 1 2
Sun The original source of energy in an ecosystem. 0 1 2
Producers Use sunlight to make food. 0 1 2
Herbivore An animal that eats only plants. Ex. Panda
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Carnivore An animal that eats only other animals. Ex. Lion
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Omnivore An animal that eats both plants & animals. Ex. Bear
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Scavenger An animal that feeds on the remains of dead animals.
Ex. Vulture
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Decomposers Organisms that break down dead or decaying organisms, and produce chemicals that enrich
the soil. Ex. Mushrooms
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Prey A living thing that is hunted for food. 0 1 2
Predator A living thing that hunts other living things for food.
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Symbiosis Relationship between two kinds of organisms over a period of time that sometimes have either beneficial or harmful effects on the
organisms.
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Mutualism When both the organisms benefit from the relationship.
Ex. Oxpecker bird eats parasites off of a
zebra, which provides food for the bird & fewer parasites for the zebra.
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Parasitism One organism feeds on or in another organism and may harm it.
Ex. A flea lives off the blood of a cat or dog.
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Commensalism One organism benefits from another without harming or helping it.
Ex. Orchids attach themselves to tree trunks
to get sunlight without harming the tree.
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