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3 years ago

The table shows the total number of posts made by the average registered user of a new social media app in the first week

Biology

1 answer:

nasty-shy [4]3 years ago

3 0

Linear equations are used to represent relations that have constant rates

The linear regression equation that models the data in this table is $\^y = 2.40476x + 0.33333$

<h3>Regression equation using a graphing calculator</h3>

To calculate the regression equation, we make use of a graphing calculator.

Using the graphing calculator, we have the following data:

Sum of X = 28
Sum of Y = 70
Mean X = 3.5
Mean Y = 8.75
Sum of squares (SSX) = 42
Sum of products (SP) = 101

<h3 /><h3>Formulating the regression equation</h3>

The regression equation is represented as:

$\^y = b\^x + a$

Where:

$b = \frac{SP}{SSX}$ and $a = MY - bMX$

So, we have:

$b = \frac{101}{42}$

$b = 2.40476$

Also, we have:

$a = MY - bMX$

$a= 8.75 - 2.4\times 3.5$

$a= 0.33333$

Hence, the linear regression equation is:

$\^y = 2.40476x + 0.33333$

Read more about regression equations at:

brainly.com/question/25987747

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Answer:

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ATP is made by respiratory linked phosphorylation.

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ATP is made by substrate-level phosphorylation.

Explanation:

Escherichia coli is a Gram-negative species of versatile bacterium that is not only able to grow when oxygen is present (aerobic conditions), but it can also adapt to different conditions and grow in the absence of oxygen using either anaerobic respiration or fermentation. This is a great adaptation because it allows it to grow in a wide variety of environments.

1. Aerobic respiration: when oxygen is present. It is the most preferred mechanism to produce ATP as conditions are optimal.

ATP is made by respiratory linked phosphorylation.

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2. Anaerobic respiration: when oxygen is absent. For example, in the gut of mammals. The second preferred mechanism to produce energy because it does not produce as much energy as aerobic respiration does.

ATP is generated by substrate phosphorylation.

*Phosphate groups are directly transferred during the conversion of ADP into ATP.

3. Fermentation: this is the last resort or least preferred process after aerobic and anaerobic respiration, respectively, because it produces even less ATP. This is achieved in conditions of oxygen absence (anaerobic conditions) and when energy (ATP) is not required in high levels.

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Specialized cells: White blood cells, muscle cells, nerve cells, and bone cells.

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The muscle contraction can be explained by sliding filament theory bu Huxley and Huxley. The two muscle proteins which take part in muscle contraction are myosin and actin.

Myosin: It is a hexameric protein. Each monomer is called meromyosin. Each meromyosin has two important parts, a globular head with a short arm and a tail. The head forms cross bridges with the actin filament. Myosin head acts as ATPase enzyme. When ATP binds, head acts as enzyme hydrolyzing the ATP to produce energy. The head also has the site for binding of actin.

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Answer:

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