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Snowcat [4.5K]
3 years ago
5

What is cleisthenes in 2000 BCE - Ancient Greece

Biology
1 answer:
vovangra [49]3 years ago
7 0

Answer:

Cleisthenes Greek was an ancient Athenian lawgiver credited with reforming the constitution of ancient Athens and setting it on a democratic footing in 508 BC.

Explanation:i dont have one

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A graph with a calibration curve, linear regression and extrapolation was drawn up from your lab results. What were the two type
fiasKO [112]

Answer:

X is the concentration of the substance being measured and Y is the response from the instrument that is being used to measure

Explanation:

A calibration curve is the plot of known concentration of substances where x is the increasing known concentration and Y is the response, typically "absorption" taken from the instrument that is used for measuring. This curve is then used to find out the concentration of the unknown substance by using it's absorbance and comparing it with the calibration curve. For example:

Concentrations and absorbance readings are as follows

0.5mg/mL=10 nm

1.0mg/mL=15nm

1.5mg/mL=20nm

2.0mg/mL=25nm

This data is plotted on a calibration curve. Next we measure the unknown substance the absorption is 20nm. We can suggest that the concentration is 1.5 mg/mL. If there are readings that fall inbetwen values then the formulat to calculate the right concentration would be y = mx + b, where m is the slope and b is the y-intercept.

Linear regression uses the modification of the slope formula y= a + bx to best see how the data of the water samples would fit on the slope of the calibration curve. X is the independent variable , b is the slope of the line and a is the y-intercept.

Extrapolation would be the action of calculating data that are outside the calibration curve,  assuming the trend would continue.

7 0
3 years ago
A point mutation changes one nucleotide at a random location in human DNA. How likely is the mutation to cause a change In the a
andrew-mc [135]

Answer: Very unlikely

Explanation:

Generally, point mutation can be easily reversed by another point mutation, so

before any changes occur in the amino acid sequence, it would have been corrected.

However, when point mutation occurs within the protein coding region of a gene it may results in the change of a single nucleotide to cause the substitution of a different amino acid (which renders the protein non-functional) as in the case of sickle-cell disease.

And this kind of point mutation is specifically called Missense mutation.

Above all, because point mutation is easily reversible, it is very unlikely to change the amino acid sequence of a protein

7 0
3 years ago
You are looking for a rare plant, the Nirnroot. You know when you hear the song of the plant it is close. This plant is known fo
weeeeeb [17]

Answer:

The genotype for a Nirnroot is heterozygous, Nn

Explanation:

Due to technical problems, you will find the complete answer in the attached files.  

Download pdf
7 0
3 years ago
Blood colloid osmotic pressure is largely due to __________.a. the high amount of water in the blood, and it promotes filtration
PolarNik [594]

Answer:

Option C,   the proteins in the blood, and it promotes re-absorption.

Explanation:

The colloidal proteins concentration within the blood creates a pressure known as blood colloidal osmotic pressure which  restrains the movement of suspended blood proteins outside the cell membrane due to which the concentration of protein with in the blood increase and in order to lower this concentration water is absorbed by the semipermeable layer of capillary cell. Hence, it can be said that it attracts water.

Hence, option C is correct

7 0
3 years ago
Technology affects the environment in many ways. Which negative impact is NOT due to advances in technology?
sergejj [24]

Answer:

d

Explanation:

Im pretty sure that the answer is d because how could technology cause more NATURAL disasters and also i took the USATestprep

 

7 0
3 years ago
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