Answer: Because of pollution and overfishing
Answer:
A. Take consistent amounts of their saliva samples with varying amounts of starch
Explanation:
Amylase is an enzyme that is required for the digestion of carbohydrates (starch). The enzyme amylase can be found in saliva.
In other to find out how long it would take for amylase to digestive starch, you would have to take consistent amount of saliva samples with varying amount or starch because amylase is an independent variable while the starch is a dependent variable in this experiment.
Decomposers
Decomposers are the organisms which are responsible for consuming decaying organisms which have died of either natural or accidental causes. Some decomposers are worms, mushrooms and etc.
Producers in the other hand process sunlight for energy and consumers feed on the producers or the consumers themselves.
Artificial Selection is selection by human choice rather than environmental change. And you can tell because artificial means man made.<span />
