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Bond [772]
2 years ago
11

What are small extrachromosomal pieces of dna found in bacteria?.

Biology
1 answer:
sweet-ann [11.9K]2 years ago
3 0
Plasmids are self-replicating extrachromosomal DNA molecules found in Gram-negative and Gram-positive bacteria
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An atom of argon has three electron shells, all of
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Explanation:

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3 years ago
Soo-Jung used the subtraction property of equality to solve an equation for y. Which equation could be the one that Soo-Jung sol
antiseptic1488 [7]

Explanation:

Option 1.

4y=12

Dividing 4 both sides

y=3

Division property should be used.

Option 2.

\dfrac{y}{4}=12

Cross multiplying each other,

y=12(4)

y=48

Option 3.

2(4y)=12

Opening bracktet in LHS

8y=12

Dividing both sides by 8 i.e.

y=\dfrac{12}{8}\\\\y=\dfrac{3}{2}

Division property is used.

Option 4.

y+4=12

Subtracting both sides by 4 i.e.

Y+4-4=12-4

y=8

Subtraction property is used.

<em><u>It means that in option (4) Soo-Jung used the subtraction property of equality to solve an equation for y.</u></em>

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3 years ago
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Think of a change that can occur to an ecosystem and the populations that live in that area. In what ways can the different popu
Alex73 [517]

Answer:

There are several environmental factors that causes changes in the ecosystem and the population of that area such as invasive species, extreme weather, land use change, pollution and disease.

Lets take invasive species as environmental factor. Introduction of invasive species can cause a huge change in the ecosystem and affects the native population in that area. it increases the competition for food resources and decreases the survival rate of their preys.

For example: Water hyacinth (Eichhornia crassipes). It is an invasive plant species that has very bad impact of native population as well as other population, like it reduces biological diversity, oxygen loss, decreased phytoplankton productivity,  eliminate plants that animals use for nesting, and alter animal communities by blocking access to the water.

Thus invasive population can affect population by reducing biodiversity, water shortages, decreasing availability and quality of key natural resources, disturb the food chain and can cause natural calamities.

Invasive species affect the resources that native species are using and that decreases the carrying capacity of the native population as it disturbs the whole food chain.

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3 years ago
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The while reason we wash fruits and vegetables before consumption is because we need to wash off the pesticides

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2 years ago
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What are the two types of eukaryotic cells​
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Answer:

There are two types of cell, prokaryotic (bacteria) and eukaryotic (animal, plant, fungi and protoctista (unicellular organisms)). Prokaryotes have no nucleolus – the DNA is in the cytoplasm, and it can from small circular strands of DNA called plasmids. Eukaryotic cells all have their DNA enclosed in a nucleus.

Explanation:

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