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Science - Lesson 1
Terms in this set (20)
What does an organism gets from its environment?
An organism gets food, water, shelter, and other things it needs to live, grow, and reproduce from its environment.
An environment that provides things a specific organism needs to live, grow and reproduce.
Why do organism live in different habitats?
Because they have different requirements for survival and reproduction.
What are the two parts of an organism's habitat?
An organism interacts with both the living and nonliving parts of its habitat. The biotic and abiotic factors.
What are biotic factors?
The parts of a habitat that are living, or once living, and interact with an organism.
Give examples of biotic factors
The plants that provide seeds and berries, worms and bacteria, parairie dog scat, owl pellets, and decomposing plant matter.
What are abiotic factors?
The nonliving parts of an organism's habitat.
Give examples of abiotic factors
sunlight, soil, temperature, oxygen, and water.
Why is sunlight an important abiotic factor for most living things?
Because sunlight is needed for plants to make their own food.
Why is soil an important abiotic factor?
Because soil consist of various amounts of rock fragments, nutrients, air, water, and the decaying remains of living things. The soil in an area influences the kings of plants and animals that can live and grow there.
Why is temperature an important abiotic factor?
Because the temperature that are typical in an area determine the types of organisms that can live there.
Why is oxygen an important abiotic factor?
Because most living things require oxygen to carry out their life processes. Organisms on land obtain oxygen from air. Aquatic organisms obtain oxygen that is dissolve in the water around them.
Why is water an important abiotic factor?
Because all living things require water to carry out their lif processes. Plants and algae need water along with sunlight and carbon dioxide to make their own food. Other living things depend on plants and algae for food.
How is an ecosystem organized?
The smallest level of organization is a single organism, which belongs to a population that includes other members of its species. The population belongs to a community of different species. The community and abiotic factors together form an ecosystem.
A group of organisms that can mate with each other and produce offspring that can also mate and reproduce.
All the members of one species living in a particular area.
Example of population
The prairie dogs in the Nebraska town
All the different populations that live together in an area.
The community of organisms that live in a particular area, along with their environment.
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