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Shkiper50 [21]
2 years ago
15

Is a group of red squirrels in one area called a population​

Biology
2 answers:
V125BC [204]2 years ago
8 0

Answer:

yes

Explanation:

ioda2 years ago
3 0

Answer:

yes

Explanation:

A group of any species in one area is called a population

Organism: one animal or plant

Population: a group of a species in an area

Community: All living organisms in an area

Ecosystem: All living and nonliving things in an area

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Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains 5 liters of natural oil for every 3 liters of
ELEN [110]

Answer:

Total 495 liters of natural oil are needed.

Explanation:

It is given that Petrolyn motor oil is a combination of natural oil and synthetic oil. It contains 5 liters of natural oil for every 3 liters of synthetic oil.

It means the ratio of natural oil and synthetic oil is

\frac{\text{Natural oil}}{\text{Petrolyn motor oil}}=\frac{5}{5+3}=\frac{5}{8}

Let in order to make 792 liters of Petrolyn oil he needs x liters of natural oil.

It means the ratio of natural oil and synthetic oil is

\frac{\text{Natural oil}}{\text{Petrolyn motor oil}}=\frac{x}{792}

Equate both ratios,

\frac{x}{792}=\frac{5}{8}

On cross multiplication we get

8\times x=5\times 792

8x=3960

Divide both sides by 8.

x=\frac{3960}{8}

x=495

Therefore total 495 liters of natural oil are needed.

6 0
3 years ago
A microbiologist plated a bacterium on a specific medium. After incubation, she noted that the previously yellow medium was now
alexdok [17]

Answer:

A differential medium

Explanation:

Bacteria require nutrients for growth, and in order to culture (grow) them and study their characteristics, different types of media are used.

A selective media is used to grow a particular group of organism while suppressing another. So a selective media usually has an inhibitory agent, which will inhibit the growth of the undesired group. An antibiotic can be added to a medium to make it selective.

A general purpose medium as the name implies can be used to grow any group of bacteria. It has no inhibitory agent and indicator that differentiates between organisms. An example of general purpose media is nutrient agar .

A non-synthetic media is made from natural ingredients.

A differential media differentiates between groups of organisms. Example of differential media is MacConkey agar and Mannitol Salt agar. On MacConkey agar, lactose fermenting bacteria turn pink while non-lactose fermenting bacteria are colorless.

On Mannitol Salt agar, mannitol fermenting bacteria turn yellow while non-mannitol fermenting bacteria are colorless. Mannitol Salt agar is also a selective medium. It has a high salt concentration which inhibits certain organisms.

6 0
3 years ago
Which of the following are disadvantages of mono-culture cropping?
professor190 [17]
The answers is all of the above
7 0
3 years ago
Where is the least amount of energy transferee in a food web ?
NeTakaya

Answer:

The least amount of energy is at the very told of the food web.

Explanation:

The very bottom has the most amount of energy! :) Hope I helped

7 0
3 years ago
I need to know the one at the bottom
Kobotan [32]

Answer:

"The ciliary body is a circular structure that is an extension of the iris, the colored part of the eye."

Explanation:

7 0
2 years ago
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