When lactose is not present, what happens to E. coli is that the genes that produce the enzymes needed to break down lactose are not expressed. The correct answer is B.
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Answer:
By the structure of their cell wall
Explanation:
Fungus cell contain cell wall with a chitin in it. That differs them from animal cell that doesn't have cell wall, but also differs them from plant cell wall which contains cellulose.
Fungus is a eukaryotic kingdom which contains microorganisms such as yeasts and molds, but also macroscopic forms such as mushrooms.
Fungus are heterotrophic organisms, often decomposers with high biodiversity.
The time that it would take for the population to double is about 7 years.
<h3>What is population?</h3>
The population of an area refers to the number if people that live in that particular area per time. The life expectancy of a population is increased by adequate sanitation. When there is over population in an area, it can lead to malnutrition and decreased food production.
A density dependent factor that affects population growth is disease transmission. The countries with the highest populations in the world do not necessarily have the fastest population growth. One factor that has led to lower fertility rates in Europe and North America is educational opportunity for women.
The occurrence which is not a potential consequence of Earth reaching its global capacity is less spread of disease.
Using;
P= Poe^rt
P = 74,000
Po = 37,000
r = 0.1
Hence;
74,000 = 37,000e^0.1t
74,000/37,000 = e^0.1t
2 = e^0.1t
ln2 = 0.1t
t = ln2/0.1
t = 7 years
Learn more about population growth: brainly.com/question/12228859
