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Volgvan
3 years ago
12

For those with a cholesterol level between 200-270 mg/dL, there were 5 new cases of coronary heart disease during the subsequent

year. The one-year cumulative incidence was ______________per 1,000 persons, rounded to one decimal place.
Biology
1 answer:
Tamiku [17]3 years ago
8 0

Answer:

the correct answer is 0,5%

Explanation:

The incidence rate is calculated as follows:

number of people with a price (new cases) / number of people with a total of this value we multiply it by 100 since we are talking about a percentage.

Incidence rates always refer us to new cases of a pathology at a certain time in a given population. This indicates the impact of the health problems that said population has at that precise moment.

At a statistical level, together with prevalence, they are one of the most commonly investigated data in the face of community pathologies.

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The pKa for the side chain of histidine is 6.0. What is the ratio of the deprotonated imidazole side chain to the protonated sid
Solnce55 [7]

Answer:

When the pKa is 6.0, we can determine the fraction of protonated H is by:

pH = pKa + log [A]/[HA]

Where

A = Deprotonated imidazole side

HA = Protonated side

Given, pH = 5.0

5 = 6 + log [A]/[HA]

log [A]/[HA] = -1 (take antilog of both side)

[A]/[HA] = 0.1

The ratio of the deprotonated imidazole side chain to the protonated side chain at pH 5.0 = 0.1

Given, pH = 7.5

7.5 = 6 + log [A]/[HA]

log [A]/[HA] = 1.5 (take antilog of both sides)

[A]/[HA] = 31.62

The ratio of the deprotonated imidazole side chain to the protonated side chain at pH 5.0 = 31.62

7 0
2 years ago
Anthocyanin is a pigment that gives flowers and leaves purple colors. The M gene codes for a transcription factor (Myb) that pro
eduard

Answer:

Anthocyanin is not produced in the plant cells

Explanation:

Anthocyanin is not produced in plant cells with the genotype mm.

As you can see from the question above, anthocyanin is responsible for the purple color of the flowers. Anthocyanin is encoded by the M gene, which is a dominant gene. Because it is a dominant gene, we know that it will be expressed in plants with the Mm and MM genotype, but will not be encoded by plants with the mm genotype. With this we can conclude that plants that have the mm genotype do not have purple color, because anthocyanin is not produced in the plant cells of these plants, since they do not have the M gene.

4 0
2 years ago
Can someone help me out with this one please...
oksian1 [2.3K]

changes of state are physical changes. they occur when matters absorb or loses energy. processes in which matter changes between liquid and solid states are freezing and melting period processes and which matter change between liquid and gases states are vaporization, evaporation, and condensation

8 0
3 years ago
A chemical bond in which two ions will stay together because of the mutual attraction of their opposite charges is a
Hatshy [7]
This is an Ionic Bond
7 0
3 years ago
What is the smallest or most specific level of organization organization you and your neighbors all have in common
bixtya [17]

Answer:

The cell

Explanation:

<em>The smallest or most specific level of organization that all living organisms (including myself and my neighbors) have in common is </em><em>the cell.</em>

This is in accordance with the cell theory which has three basic components, including:

1. The cell is the basic unit of life

2. All living organisms are made up cells

3. Cells arose from pre-exsiting cells.

<u>Other levels of organisation include tissues which are group of cells specialized for a certain function, organs which are group of tissues serving similar function, and systems which are group of organs working together as a unit.</u>

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3 years ago
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