<span>Reproducing molecules evolved into living molecules by chemical processes. hope it helps
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Answer:
D)floods
Explanation:
The factors independent of the density of a population are defined as those whose impact is not affected by the size of the population. All species, including humans, are influenced in a similar way, regardless of population size. Among these independent factors are climate, forest fires and natural disasters, such as floods.
A.
Energy is lost when machines don’t work right.
B.
We can’t add more energy to the universe.
C.
We can’t destroy energy that exists in the universe.
D.
Energy changes from one form to another.
Some microorganisms such as yeast produce energy in oxygen-free environments through anaerobic cellular respiration. Anaerobic cellular respiration is where oxygen is not used. Yeast produces energy by converting sugars into alcohol, gas or acetic acid. <span>This process is called fermentation. </span>Ethanol is a by-product of fermentation. Humans have used fermentation to produce food and drink since the Neolithic Age. Fermentation makes yoghurt from milk by producing lactic acid. It also produces alcoholic beverages such as wine from grapes.
