At what magnification do you first notice the ragweed pollen? 2. which is bigger, a rhinovirus or
e. coli? 3. based on the magnification, how many of the
e. coli can fit into the same space as the head of a pin? 4. about how many red blood cells could fit across the diameter of a human hair (again, look at the magnification scale)?

Answers

Answer 1
Microscopes are used to view microscopic or tiny particles that cannot be viewed by naked eyes.

1. Ragweed pollen can be first seen at 100x. Ragweeds are flowering plants. The pollen of ragweed may be an allergen and range in size from 16-27 microns. Pollen grains can be seen with the help of compound microscope.

2. E. coli. is BIGGER than rhinovirus. The size of E. coli. is 0.2 microns in diameter while the size a rhinovirus cell is 0.03 micron in diameter. Thus, it is clear that E. coli. is bigger than a rhinovirus.

3. Based on magnification, approximately 10,000 E.coli. can fit into the same space as the head of the pin. The head of a pin is of 2mm (2000 microns) in diameter and visible with naked eyes while the size of an E. coli. cell is about 0.2 micron in diameter. E. coli. is visible at 10000x. It means that approximately 10,000 E. coli. cells can fit into the head of a pin depending upon the magnification scale.

4. Approximately 100 red blood cells (RBCs) could fit across the diameter of human hair. The diameter of a human hair ranges from 70-100 micron or on an average 75 microns while that of RBC ranges from 6-8 micron. RBC can be seen at 6000x magnification while human hair can be vied at 60x magnification. Thus, 1 RBC is 100 times smaller than a human hair depending upon the magnification.
Answer 2
Final answer:

Explanation of magnification levels and the sizes of different biological entities under a light microscope.

Explanation:

1. At what magnification do you first notice the ragweed pollen? Ragweed pollen can be first noticed under a light microscope that magnifies up to approximately 400 times.

2. Which is bigger, a rhinovirus or E. coli? A rhinovirus is bigger than E. coli, as a typical virus like influenza virus is larger than a bacterium like E. coli.

3. Based on the magnification, how many of the E. coli can fit into the same space as the head of a pin? Using the size comparison, numerous E. coli bacteria could fit into the same space as the head of a pin.

4. About how many red blood cells could fit across the diameter of a human hair? Around 250 red blood cells could fit across the diameter of a human hair, considering the magnification scale.


Related Questions

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Answers

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Answers

Final answer:

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Explanation:

Joyce and Marvin, who run a preschool day care, are in a typical predicament that most businesses face - balancing cost with quality. To keep their costs down while still providing nutritious meals for the children, they could look into buying food items in bulk, which usually comes at a discounted rate. Additionally, preparing meals in-house rather than ordering from a caterer could be another way to reduce costs. Meal planning in advance could help in buying only what is needed, hence, minimizing waste. Using seasonal and local produce is not only more affordable but also offers variety and freshness to the meals. At the same time, it's essential for them to ensure that the meals are nutritious and appropriate for the age group, as these are preschool children.

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Answer: FALSE

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Answer:

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Explanation:

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Answers

If jerry and co. grants terms of 2/10, n/30 related to a sale
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Answers

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The illustration or example given above is an example of glass precipice. A glass precipice is a type of metaphor illustration that depicts an effect that is not seen or visible when in terms of the employability of a person or an individual.

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Answers

Certain states have a flat state tax of the following is a true statement. The correct option is C.

What is the disadvantage of a flat tax?

Lack of wealth redistribution, the increased burden on middle-class and lower-income families, and tax rate wars with neighboring nations are some disadvantages of a flat tax rate system.

Lack of wealth redistribution, the increased burden on middle-class and lower-income families, and tax rate wars with neighboring nations are some disadvantages of a flat tax rate system. There are nine states with a flat income tax rate for the 2022 tax year, which corresponds to the return you file in 2023. Colorado, Illinois, Indiana, Kentucky, Massachusetts, Michigan, North Carolina, Pennsylvania, and Utah are among these.

Thus, the ideal selection is option C.

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Customs and taboos are culture-bound and should be taken into consideration when products are marketed in a foreign environment.

Answers

True. It's of paramount importance to respect the laws and cultures where products are being marketed because in the end the people of that land that will purchase the products.

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Answers

The rites and rituals are considered to be ceremonies and activities in which should be placed on the space provided because they are use for occasions in a way of celebrating a specific group or organization that has set an example above.

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Answers

Final answer:

Tools like the Biennial Revenue Estimate provided by the Texas Comptroller of Public Accounts are used to forecast state economic growth and provide information on Texas's economy. Texas has a diversified economy, which has shown resilience during economic downturns like the Great Recession and the COVID-19 pandemic.

Explanation:

The tool used to forecast state economic growth, track business cycles, and generally provide information on the health of the economy in Texas is likely an economic forecasting model or system. Such models include tools like the Biennial Revenue Estimate, which is published by institutions such as the Texas Comptroller of Public Accounts. These tools analyze various economic indicators, including gross domestic product (GDP), employment statistics, industry growth, and more to diagnose the health of the economy.

Texas has a robust economy and is known for its strong performance. It has diversified its economy from being heavily reliant on oil and natural gas to expanding into sectors such as high-tech manufacturing, healthcare, business services, and information systems. Additionally, the tourism industry is a significant contributor to the economy with attractions like national parks and the San Antonio Riverwalk. It is no surprise then that Texas was recognized as the Best State for Business by CNBC and has been the recipient of the Governor's Cup for multiple years.

During events such as the Great Recession and the COVID-19 pandemic, Texas has demonstrated resilience and an ability to recover. The state has adapted to changing economic circumstances by employing technology and restructuring workplace practices, which has helped to mitigate some of the negative impacts of economic downturns.

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Answers

The following things are fast ways to improve your credit score: disputing any errors on credit reports and the sooner you do it, the better, settling delinquent accounts, and checking credit limits. Cancelling credit cards will not improve your score.
Settling all delinquent accounts will up your credit rating if the creditor is a bank or financial institution. Also, disputing any errors and credit reports and fixing them will also be able to help increase your credit rating. However, cancelling your card will not improve your rating. 

Your body generally absorbs about 20 to 40 percent of the carotenoids you eat. this proportion ______ as the amount of carotenoids you eat increases.

Answers

Since carotenoids are tightly-bound in proteins in our foods, our body only typically absorbs about 20% - 40% of what is consumed. However, as the amount of carotenoid eaten increases, this proportion further decreases/ drops-- to 10% or less. 

Carotenoids are plant pigments which are responsible for the bright red, yellow, and orange colors of fruits and vegetables, such as carrots, pumpkins, squash, and mangoes. Certain types of carotenoids form Vitamin A, which is essential to health. Moreover, carotenoids exhibit antioxidant activity by protecting cells from free-radical damage. 

Answer:

DECREASES

Explanation:

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