Biology

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Heterotrophs

Can not produce it's own food

Autotrophs

Can produce it's own food

Explain how carbon dioxide and oxygen are cycled through an ecosystem.

Carbon is removed from the atmosphere through photosynthesis while oxygen is released. Carbon is returned to the atmosphere through cellular respiration while oxygen uses cellular respiration to release water into the atmosphere.

Carbon is removed from the atmosphere through?

Carbon is removed through the atmosphere through PHOTOSYNTHESIS

Carbon is returned to the atmosphere through?

Carbon is returned to the atmosphere through CELLULAR RESPIRATION

Animals (consumers) can only preform what?

Cellular respiration

Denitrification

Convert nitrate and ammonia back into nitrogen

Ecological pyramids

Describe the energy flow and biomass among the trophies levels

Pyramid of energy

Shows amounts of energy passed on from level to level

Pyramid of biomass

Shows the total amount of living material available at each trophic level

Ecology

Study of the interactions among organisms and their environment

Trophic levels

The feeding levels of an organism

Niche

The function or job an organism preforms in it's habitat

Why is nutrient cycling important in the ecosystem?

To save the ecosystem

Give 2 examples of abiotic factors

Water, sunlight

How much energy is passed on from one trophic level to another?

10%

Scavengers

Feed on dead animals

Secondary consumers

Feed on primary consumers

Tertiary consumers

Feed on secondary consumers

Carnivore

Feeds directly on animals

Herbivore

Feeds directly on plants

Primary consumer

Feeds directly on plants

Omnivore

Feeds on plants and animals

Energy from the sun is used to convert carbon dioxide into what?

Glucose (a type of sugar)

The bottom of the biomass pyramid corresponds to the ____ amount of living material

Greatest

Nitrogen fixation

Required to change nitrogen in the atmosphere into nitrates and ammonia (a form that plants can use)

Biotic factors (give 3 examples)

Living Plants, animals, fungi

Habitat

Living thing in an ecosystem that has a place which it lives in

Food web

Many food chains that are connected together

Oxygen cycle

Moves oxygen through an ecosystem

All organisms need energy to do what?

Moving, feeding, producing, and growing

Nitrogen cycle

Nitrogen moves through an ecosystem

Abiotic factors (give 3 examples)

Non-living Water, sunlight, oxygen

Plants (producers) preform what?

Photosynthesis and Cellular respiration

Carbon gets cycled back and forth between what?

Photosynthesis and cellular respiration

Carbon cycle

Process by which Carbon moves through an ecosystem

Bio geochemical cycles

Process by which nutrients move through organisms and the environment

Ecologist

Scientists who study ecology

Ecosystem

The physical environment and the living things within an ecosystem


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