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| is made up of organisms interacting with one another and with nonliving factors to form a working unit |
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the study of the interactions that take place among living organisms and nonliving parts of an ecosystem
Ecologists spend a lot of time outdoors observing ecosystems up close. They also conduct experiments in labs. |
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| the part of Earth where organisms can live |
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| the organisms that make up the living part of an ecosystem are called this. An organism depends on other biotic factors for food, shelter, protection, and reproduction. |
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| the nonliving things found in an ecosystem |
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| is a group of the same type of organisms living in the same place at the same time |
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| all of the populations that live in an area make up a community |
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| the things that limit the size of a population, such as the amount of rainfall or food. |
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| the role of an organism in an ecosystem is called this |
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| place where an organism lives is called this |
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| organism that makes its own food, like a plant, is this |
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| grasshopper that nibbles on the plants is this/ eats other organisms |
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| use dead organisms and the waste material of other organisms for food |
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| Food chains/webs ALWAYS start with the Sun. |
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| Food chains/webs ALWAYS start with the Sun. |
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| SUN > grass > grasshopper > frog > snake > hawk |
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| SUN > grass > grasshopper > frog > snake > hawk |
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Calculate Population Density of 550 sunflowers. The meadow measures 100m x 66m (hint m2)
100m x 66m = 6600 m2
6600m2/550 =
12 flowers per m2 |
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100m x 66m = 6600 m2
6600m2/550 =
12 flowers per m2 |
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| How do the abiotic and Biotic factors interact within an ecosystem? |
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Water is abioitic and is needed by every living organism
Soil is abioitic and is needed by plants
Trees and other plants release water vapor from their leaves (a process called transpiration) that create humidity (which in turn influences how much rain falls in an area)
The climate in an area influences the special adaptations that plants and animals have. For example: warm fur coats and thick layers of fat to keep warm in cold climates, animals in dry, hot climates (desert) have large ears to release heat and cool down.
Biotic factors also influence abiotic factors.
Animals produce waste (go to the bathroom) which in turn will become nutrients in the soil. |
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| A frog eating an insect is an example of two living things interacting in an ecosystem. A frog using a stream as shelter is an example of an interaction between a living thing and a nonliving part of an ecosystem |
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| A frog eating an insect is an example of two living things interacting in an ecosystem. A frog using a stream as shelter is an example of an interaction between a living thing and a nonliving part of an ecosystem |
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| The abiotic factor soil is made of minerals, water, air, and organic matter. The abiotic factor temperature determines which organisms live in a particular place. Another important abiotic factor is water. Some organisms are adapted for life in water. etc. |
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| The abiotic factor soil is made of minerals, water, air, and organic matter. The abiotic factor temperature determines which organisms live in a particular place. Another important abiotic factor is water. Some organisms are adapted for life in water. etc. |
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| Ecosystems change over time |
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| Ecosystems change over time |
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