Deck 5 (slides 20-28)

Energy flows through an ecosystem from the ______ to __________ then to __________.

Another necessity to an ecosystem are _________, organisms that eat the remains of dead organisms for energy.

Decomposers eat the remains of dead organisms for energy and then release the nutrients of the dead organisms back into the soil (_________).

_________ of decay in soil and __________ are 2 common decomposers.

In nature, feeding relationships among organisms are represented by a ________ ______, which is made of many interconnected food chains.

The energy pyramid shows that the energy at each trophic level ________; only ____% of the energy from one level passes up to the next level (90% of the energy is lost as _______ to the environment). **study energy pyramid

The biomass pyramid shows that since there is ______ energy available at each trophic level, each level supports ______ biomass (_______ tissue). ***study biomass pyramid

Most biomass on Earth is ________ tissue.

The pyramid of numbers shows since there is less energy available and less biomass at each trophic level, there are _______ numbers of organisms at each level. ***study pyramid of numbers

There are _______ insects than frogs on Earth.

There are _______ frogs than insects on Earth.

There are ______ snakes than frogs on Earth.

The water cycle begins as water from clouds falls as ___________. ***study the water cycle diagram

After precipitation, water runs off into ______ and oceans or seeps into the ________.

After the water runs off, the water in oceans and lakes __________ and __________ into clouds.

After water seeps into the ground, the ground water is taken up by the _______ of plants.

After the ground water is taken up by the roots of plants, the plants lose water out of their leaves by _________, through _________ (guard cells) in the backs of leaves.

In the carbon and oxygen cycle, the _________ _________ of animals releases CO2, which is then used in _________ by plants to release O2. This O2 is then for cellular respiration of animals. **study the carbon and oxygen cycle diagram

All organisms require nitrogen to build proteins for _______ and ________.

________ nitrogen (N2) makes of 78% of the air, but is ________ to living things.