Some of the smallest cells in the human body are red blood cells. They make up nearly half the volume of blood. A typical red blood cell is 8 µm across. The largest artery that blood flows through is the aorta, which is about 20 mm (2 cm) across. How many red blood cells would fit side-by-side across the aorta? Show your working.

Answers

Answer 1

Answer:

[tex]$1.6 \times 10^{-3}$[/tex]

Explanation:

Given data :

Size of a typical red blood cells = 8 µm

                                                     = 0.0008 cm

The size of the largest artery through which the blood flows, known as aorta

                                                     = 20 mm

                                                     = 2 cm

Thus the number of the red blood cells that would fit side by side across the aorta would be =   2 cm x 0.0008 cm

                          =    [tex]$1.6 \times 10^{-3}$[/tex]


Related Questions

Why do plant cells have chloroplasts?

Answers

Answer:

The chloroplast has chlorophyll and the chloroplasts also helps with makes photosynthesis happen. It takes the suns energy and turns it into energy for the plant. So it uses solar energy and makes chemical energy.

Explanation:

by which large pieces of food are cut and crushed into
smaller pieces is called
a. emulsification b. chemical digestion
c. absorption de mechanical d
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Answers

Answer:

by which large pieces of food are cut and crushed into

by which large pieces of food are cut and crushed intosmaller pieces is called:

d. mechanical digestion

5. The tube that connects the mouth to the stomach is the:

a. oesophagus

5. The hard, outer coating of the tooth is called:

b. enamel

- The building blocks of proteins are:

c. amino acids

5. Which of the following vitamins is made by the body?

a. vitamin D- b. vitamin A c. vitamin C

. Having too little of the mineral iron can cause:

b. goitre

The wavelike motion that moves food through the digestive tract is called:

d. peristalsis

Gastric juice contains all of the following except:

d. bile

The process by which large food molecules are broken down into smaller food

The process by which large food molecules are broken down into smaller foodmolecules is:

c. mechanical digestion

Fats are digested in the:

b. small intestine

Poor nutrition caused by an unbalanced diet is called:

c. malnutrition

The fingerlike projections on the lining of the small intestine are called:

b. villi

[tex].[/tex]

Answer:

d. mechanical digestion

a. esophagus

b. enamel

c. amino acids

a. vitamin D

c. anemia

d. peristalsis

b. pepsin

a. chyme

c. absorption

b. mucus

a. chemical digestion

b. small intestine

c. malnutrition

b. villi

Not 100% sure on some of these but very positive on most of them :) Hope this helps.

Explanation:

why is the product MILO not a suitable for a vegan diet

Answers

MILO and MILO products may not be suitable for a vegan diet due to:

MILO and its products consist mainly of cocoa, malt barley, sugar, and milk powder. Milk powder essentially comes from animals.A vegan is a person whose lifestyles exclude animal products, especially when it comes to diets. A vegan diet primarily consists of plant and plant products.

Hence, the fact that MILO consists of powder milk which is animal-based might make it unsuitable for a vegan diet.

More about vegan diets here: https://brainly.com/question/16160533

Answer:

Explanation:

VEGAN DIET

A Vegan diet refers to diet that contain food from plants such as maize , beans, rice, wheat e.t.c It is mainly plants source and does not contain animal source.

But MILO is also Plant based energy and it contains several vitamins and minerals to help grow a healthy body: It contain Vitamins B2 and B3 which help to support effecient energy release in the body. It contain Essential nutrients like iron, zinc which are very minute

in plant based diets. Milo contain milk which is of animal source.

Therefore, Milo product is not suitable for a vegan diet because it contains milk solids which is derive from animal source.

Why is the unit of velocity called derived unit?​

Answers

Answer:

Because it is a vector quantity, it has a direction too such that derived unit is made up of two or more fundamental units. That is mere and second. That is why it is called as a derived unit as its unit is metres per second.

Hope this helps...Have a good day!!

All enzymes which catalyze the chemical reactions of a cell are
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Answers

Answer:

I think the answer will be protein.

Answer:

the answer is carbohydrates

Produces proteins drop down menus

Answers

Explanation:

Ok, then what do you need explanation for that ??

Need help someone knows the answer

Answers

Answer:

d. landfill materials

Explanation:

The human heart weighs how many pounds

Answers

After careful consideration your answer is...

Just about 1 pound

*Hope I helped*

~Alanna~

1 lb (pound)

Explanation:

it is the answer.

Look at the branching tree diagram below.

A slanting, horizontal line is shown. On the extreme left, there is a label that says Common Ancestor. Along the slanting, horizontal line there are five dots labeled from left to right with the following traits Four limbs, Amniotic egg, Fur, Shearing teeth, and Retractable claws. There is one vertical line between each of the consecutive five dots. The lines are labeled from left to right as Amphibians, Reptiles, Marsupials, Dogs, Cats.

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Only cats
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Answers

Answer:

both cats and marsupials

Answer:   Both Amphibians and Reptiles

Explanation: I took the test and got it, so.....

What is one of the causes of mechanical weathering?

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Answers

C. animal actions

Others are chemical examples.

i think your answer might be animal actions

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A. AKA:
B. Composed of:
C. Monomer:
D. Polymer:
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Answers

A: Carbs
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state te type of cell devision of cross section tips of onion root.​

Answers

mitosis and/or meiosis is the anwser

Which type of plate boundary would be most likely to lead to above-ground volcanic activity?

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Answers

Answer:

A.Subduction

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In a subduction zone, one plate slides beneath another. This leads to friction that can melt the crust and result in volcanic activity

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Answers

Answer:

C. Demand for land use

Explanation:

Habitat fragmentation usually occurs because of human activities such as new roads, parking lots, and housing developments. Organisms need their specific habitat for survival, and fragmentation is a leading threat to many terrestrial animals.

Using the following nucleotide sequence, predict the complementary strand sequence:
5'-TTAAACCCGTTGGAAC-3'



5'-AATTTGGGCAACCTTG-3'

3'-AATTTGGGCAACCTTG-5'

03-CCGGGTTTACCAAGGT-5'

0 3'-TTAAACCCGTTGGAAC-5'

Answers

The predicted the complementary strand sequence for 5'-TTAAACCCGTTGGAAC-3' is 3'-AATTTGGGCAACCTTG-5'.

What is DNA?

Deoxyribonucleic acid or DNA is a double helix molecule composed of two complementary strands.

According to the base pair rules, Adenine pairs with Thymine and Guanine pairs with Cytosine.

In conclusion, the predicted the complementary strand sequence for 5'-TTAAACCCGTTGGAAC-3' is 3'-AATTTGGGCAACCTTG-5'.

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Answer:

Your answer would be AATTTGGGCAACCTTG-5′

Explanation:

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Answers

Explanation:

Modern methods indicate that the mutation rate is roughly one to two mutation per 10,000 genes per generation.

In human cells, approximately TWO (2) MUTATIONS occur naturally in DNA per 10,000 bases (Option A is correct).

The mutation rate (u) refers to the occurrence of new mutations in a given nucleotide sequence over time.

In human cells, the mutation rate is approximately 10⁻⁴ per generation.

Therefore, in a DNA sequence that has 10,000 base pairs of length, this value is equal to 2 mutations per generation (u = 2 / 10,000 = 10⁻⁴).  

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Science, Geology, Class 8

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Answers

Answer:

Humus

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Does anyone know the answer for 1?

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The correct answer of question number 1 is D. Sill

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Answers

Answer:The correct answer will be options-a scientific question, a procedure and a conclusion

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The common components of all types of investigation are :

1. Scientific question: the question is asked on the basis of observation made which could be answered.

2. Procedure: the sequential steps are followed to answer and test the scientific question.

3. Conclusion: the main aim of the investigation is the conclusion or inference to the scientific question which is an explanation of the question.

Explanation:

Dhhdbej Dundee Fiji’s

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Answers

Answer:

The cardiovascular system delivers oxygen and nutrients to cells and takes away wastes.

I hope this will help you if not then sorry, have a great day :)
The cardiovascular system is one of the eleven organ systems of the human body. Its main function is to transport nutrients to cells and wastes from cells

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0
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O
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Answers

Answer:

A. Different blood types have different antibodies that will be attacked by someone with

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Answers

Mitochondria is called the powerhouse of the cell.

Hope this helps! Have a great day :)

Mitochondria are known as the “powerhouse of the cell.”

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Answers

2) Increased understanding and communication.

Various cultures and societies shape individual names for a particular organism. However, binomial nomenclature breaks this barrier to allow the scientific community to communicate more efficiently.

For example, the panther or mountain lion can simply become Puma concolor — thus, eliminating confusion. I hope this helps.


State one reason why soil organisms need air

Answers

Answer:

Soil organisms need air because to release plants nutrition to soil .

they provide nutrients into the air that are healthy

Is a ping pong ball a nonliving or living thing and why

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Answer:

A ping pong ball is nonliving because it does not have a brain or living cells. It is plastic.

If you have a measurement of 234.005 k, how many significant figures does it have

Answers

Answer:

It has 6 sig figs

Explanation:

235.005

Every digit is significant.

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O D. A matchstick changes color when it burns.

Answers

A gas is given off when two substances are mixed.

physical change: A copper rod is hammered into a thin sheet.

A solid forms when two clear liquids are mixed.

A matchstick changes color when it burns.

explanation

a physicals change vs chemical

physical change is like cutting, changing shape etc, it the molecules that make it and the chemicals of it stay same

chemical change when it chemically changed such as cooking meat

The Answer is B

B. A copper rod is hammered into a thin sheet.

Physical change does not affect the chemical components of the material and the rod was only hammered to change it shape (thus altering a change in the physical aspect)

What are the physical characteristics that all specimens have in common

Answers

1. All living organisms are made of cells which perform functions necessary for that organism to survive in its environment
2. All living organisms, weather single called or multicellular, expand energy.
3. We all grow and change through the process of cell division or mitosis.
4. Reproduction (either sexually or asexually) - this allows our species to still exist.
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The physical characteristics that all specimens have in common can be presence of cells, as there is no specimen given, let's take animals. A dichotomous key can be used to find the similarity.

What is a specimen?

A specimen can be anything that is displayed regarding the subject. In labs the specimens can be chemicals, animals, plants, any objects, etc.

Specimens are displayed to learn about them, to see the actual version of that animal that can not be seen easily.

Thus, Because no specimen is provided, let's take animals as an example, the presence of cells is a trait that all specimens share. To find the similarity, a dichotomous key might be utilized.

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Where do convection currents occur atmophere

Answers

Answer:

Convection takes place in the atmosphere, in the oceans, and in Earth's molten subcrustal asthenosphere.

Explanation:

can you suggest me some biology experimental project work topics?​

Answers

Answers:

1. General

2. Reproduction

3. Health

4. Genetic Engineering

5. Technical Experiments on Humans

6. Relationships and Media

7. War

8. Information and Communication Tech

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