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Animals pee on things to mark their territory.

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Animals pee on things to mark their territory.

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Lions asserting dominance to another lion that is in its territory.

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Lions asserting dominance to another lion that is in its territory.

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Hippos are one of the most dangerous animals in the world.

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Hippos are one of the most dangerous animals in the world.

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Hippos fight over territory

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A niche is the role of an species or organism in an ecosystem.

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A niche is the role of an species or organism in an ecosystem.

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A courtship dance is when a male animal does a dance to impress a female animal.

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A courtship dance is when a male animal does a dance to impress a female animal.

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A pheromone is when an organism excretes a chemical that triggers a social response. Pheromones are used to let other organism know where to go or something else.

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A pheromone is when an organism excretes a chemical that triggers a social response. Pheromones are used to let other organism know where to go or something else.

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Estivation is when animals sleep for a very long time in seasons that are too hot.

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Estivation is when animals sleep for a very long time in seasons that are too hot.

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Hibernation is when animals sleep for a very long time in seasons when it is too cold.

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Hibernation is when animals sleep for a very long time in seasons when it is too cold.

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A instinct is something animals are born and already know how to do something.

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A instinct is something animals are born and already know how to do something.

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Learned behavior is when animals are trained to do certain things and the animal learns the skill.

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Learned behavior is when animals are trained to do certain things and the animal learns the skill.

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Imprinting is when an animal gains its sense of species identification.

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Imprinting is when an animal gains its sense of species identification.

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Classical conditioning is when an animal learns something unconsciously.

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Classical conditioning is when an animal learns something unconsciously.

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Trial and error learning is when an organism successively tries numerous responses in a situation.

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Trial and error learning is when an organism successively tries numerous responses in a situation.

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Habituation is the action of habituating or the condition of being habituated.

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Habituation is the action of habituating or the condition of being habituated.

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Migration is used so animals can find more foods sources and for seasonal changes

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Migration is used so animals can find more foods sources and for seasonal changes

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Excretion cleans up after respiration. Your lungs excrete carbon dioxide as you breathe out, your kidneys filter out nasties to produce urine, removing nitrogen waste from your body, and your skin sheds excess salt through sweat.

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Excretion cleans up after respiration. Your lungs excrete carbon dioxide as you breathe out, your kidneys filter out nasties to produce urine, removing nitrogen waste from your body, and your skin sheds excess salt through sweat.

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Some animals use camouflage to hunt or to hide from animals.

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Some animals use camouflage to hunt or to hide from animals.

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Animals use unique movement to confuse prey/predators.

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Animals use unique movement to confuse prey/predators.

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Carrying capacity is the amount of things that can be held by a vehicle/container

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Carrying capacity is the amount of things that can be held by a vehicle/container

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If there is a low food source in an area there wont be that many organisms in that area.

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If there is a low food source in an area there wont be that many organisms in that area.

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If there is low water in an area it couldn’t be many animals since animals need water to survive.

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If there is low water in an area it couldn’t be many animals since animals need water to survive.

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High demand could also be a limiting factor because if the demand is high whatever source is being demanded would run out soon.

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High demand could also be a limiting factor because if the demand is high whatever source is being demanded would run out soon.

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Animals need space so an area isn’t crowded with animals.

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Animals need space so an area isn’t crowded with animals.

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AIDS is a chronic, potentially life-threatening condition caused by the human immunodeficiency virus HIV.

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AIDS is a chronic, potentially life-threatening condition caused by the human immunodeficiency virus HIV.

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Influenza is a viral infection that attacks your respiratory system.

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Influenza is a viral infection that attacks your respiratory system.

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Tuberculosis is a potentially serious infectious disease that mainly affects the lungs.

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Tuberculosis is a potentially serious infectious disease that mainly affects the lungs.

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Dutch elm disease causes wilt and death in all species of elm native to Minnesota.

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Dutch elm disease causes wilt and death in all species of elm native to Minnesota.

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Pfiesteria is a genus of heterotrophic dinoflagellates that has been associated with harmful algal blooms and fish kills.

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Pfiesteria is a genus of heterotrophic dinoflagellates that has been associated with harmful algal blooms and fish kills.

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Mutualism is the ecological interaction between two or more species where each species has a net benefit

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Mutualism is the ecological interaction between two or more species where each species has a net benefit

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Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism.

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Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism.

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Predation is a biological interaction where one organism, the predator, kills and eats another organism.

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Predation is a biological interaction where one organism, the predator, kills and eats another organism.

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Ecological competition is the struggle between two organisms for the same resources within an environment.

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Ecological competition is the struggle between two organisms for the same resources within an environment.

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Animals may compete over food, water, and shelter.

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Animals may compete over food, water, and shelter.

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An association between two organisms in which one benefits and the other derives neither benefit nor harm.

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An association between two organisms in which one benefits and the other derives neither benefit nor harm.

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A keystone species is a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.

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A keystone species is a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically.

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If plants disappeared from an ecosystem almost every animal would be affected.

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If sharks disappeared from the water then there would be an over-population of anything that the sharks eat.

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Algae & Water Weed