Fill in. Complete the statement below. 3.) or H²0 into chemical energy ( food)
These organisms are referred to as the(4.) and they are vitally important to all life on Earth. they produce food to themselves and to feed the costumers who cannot make their own food.(5.) also essential for life, is a by-product of photosynthesis

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3) CO2 + water

4) producers

5) oxygen

Explanation:

Autotrophs are producers which use sunlight, water and carbon dioxide to make their own food. This occurs via the process of photosynthesis in green plants, algae ,phytoplankton and cyanobacteria. These occupy essential places in the food web, and provide the energy used by hetertrophs or consumers.

6 CO2 + 6 H2O + light  →  C6H12O6 + 6 O2

Carbon Dioxide + Water + Light       Glucose + Oxygen

Consumers carry out respiration to obtain the energy stored in carbohydrates produced by plants.

C6H12O6+ 6 O2 → 6 CO2 + 6 H2O + ≅38 ATP

glucose+ oxygen →  carbon dioxide+ water+ energy

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.