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3 years ago

11

During the cell cycle, the complete period of non division is called what?

1 answer:

NeTakaya3 years ago

6 0

The complete period of non division during the cell cycle is G0 (Gap zero).

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Scientists cannot use the scientific method to reproduce another scientists experiment True or False

Murljashka [212]

Answer:

False

Explanation:

One of the proof of a good scientific experiment is the ability to reproduce the steps leading to the results obtained from the experiment.

To proof the validity of the claims of an experiment by other scientists:

Every experiment must be reproduceable by other scientists.
This will enable the experiment to be rid of any bias.
For the conclusions of an experiment to be validated by other scientists, such experiment should be tested by others.
If the results are the same, then the hypothesis can be advanced.
If not, the experiment is redesigned or discarded.

8 0

3 years ago

Owls eat voles ( a relative of mice ); voles eat grass and seeds . Which food chain is correct ?

max2010maxim [7]

The correct answer is A. You need to have something that starts with grass and ends with the owl. So the vole has to be in the middle.

4 0

3 years ago

Most biopolymers industrially produced by means of microorganisms are

Ksenya-84 [330]

Cell wall constituents polysaccharides nucleic acids

3 0

3 years ago

A spheroidal bacterium with a diameter of 1 mm contains 2 molecules of a particular protein. What is the molar concentration?

creativ13 [48]

Answer : The molar concentration is, $6.35\times 10^{-18}mol/L$

Explanation :

First we have to calculate the moles of protein.

$\text{Moles of protein}=\frac{\text{Number of molecules of protein}}{\text{Avogadro's number}}$

Number of molecules of protein = 2 molecules

Avogadro's number = $6.022\times 10^{23}molecules/mol$

$\text{Moles of protein}=\frac{2\text{ molecules}}{6.022\times 10^{23}molecules/mol}=3.32\times 10^{-24}mol$

Now we have to calculate the radius.

Radius = $\frac{Diameter}{2}=\frac{1mm}{2}=0.5mm=5.0\times 10^{-4}m$

Conversion used : (1 mm = 0.001 m)

Now we have to calculate the volume.

$V=\frac{4}{3}\pi r^3$

$V=\frac{4}{3}\times 3.14\times (5.0\times 10^{-4}m)^3$

$V=5.23\times 10^{-10}m^3=5.23\times 10^{-7}L$

Conversion used : (1 m³ = 1000 L)

Now we have to calculate the molar concentration.

$Concentration=\frac{\text{Moles of protein}}{\text{Volume}}$

$Concentration=\frac{3.32\times 10^{-24}mol}{5.23\times 10^{-7}L}$

$Concentration=6.35\times 10^{-18}mol/L$

Thus, the molar concentration is, $6.35\times 10^{-18}mol/L$

4 0

3 years ago

Give examples of rapid ecological changes that lead to primary succession

velikii [3]

Answer:

lava-sterilized landscapes, newly formed sand dunes, and rocks that are deposited by retreating glaciers! Hope this helps

Explanation:

5 0

2 years ago

Read 2 more answers