A student calculated the average surface area-to-volume ratio of four different types of human epithelial cells. The results are shown in the table below. Based on the data, which type of cell would be best suited for lining the alveoli of the lungs, where diffusion of carbon dioxide and oxygen must occur very rapidly? Simple squamous cells Simple cuboidal cells Simple columnar cells Simple spherical cells

Answers

Answer 1

Answer:

There is no data attached to this question, however, the question can be answered based on general understanding of epithelium tissues.

The answer is Simple squamous cells

Explanation:

Epithelial tissues are those tissues that line or cover the surfaces of walls or structures. However, based on the one cell layer and their shape, which defines their function, epithelial tissues are classified into the following:

- Simple squamous

- Simple cuboidal

- Simple columnar

All the above have one cell layer. This question involves a student that calculated the average surface area-to-volume ratio of four different types of human epithelial cells. Based on the question, SIMPLE SQUAMOUS CELLS would be best suited for lining the alveoli of the lungs, where diffusion of carbon dioxide and oxygen must occur very rapidly.

This is because the simple squamous cells, which are shaped like the scales of a fish, are thin-walled flat cells. Hence, they are found or adapted to parts where where diffusion or filtration takes place e.g alveoli of the lungs


Related Questions

DNA is very small, one complete turn of a DNA helix is about______.

Answers

Answer:

10 base pairs

Explanation:

Complete the statements to describe sporulation and vegetative propagation.

During sporulation, offspring develop from tiny structures called
.

During vegetative propagation, offspring grow from parts of the parent

Answers

Answer:

during sporulation, offspring develop from tiny structures called spores. During vegetative propagation, offspring grow from parts of the parent plant

Explanation:

Answer:

*spores

*plant

Explanation:

Which statements concerning the characteristics of water are correct? Choose all that apply.
A Water releases heat when it evaporates
B The solid form of water floats in the liquid form of water
C Water is a nonpolar substances
D Water is cohesive and adhesive allowing for hydrogen bonding
E The pH of pure water is 8

Answers

Answer:

water in non-polar

Explanation:

Explantion:

Nonpolar Covalent Bond. A bond between 2 nonmetal atoms that have the same electronegativity and therefore have equal sharing of the bonding electron pair. Example: In H-H each H atom has an electronegativity value of 2.1, therefore the covalent bond between them is considered nonpolar.

can anyone help me with a biology masteryconnect its 40 questions inbox me for the code and student id and if you want to take it for me plz atleast get a 70%

Answers

Answer:

TAKE IT YOURSELF.

Explanation:

We can help with single questions or maybe 1-4 questions but no one is about to do a whole assignment /test for you, we all have a life and maybe you should try learning the skill instead of trying to get away from doing it. I know it's cliche, but not doing your work is always going to kick you when you need to take finals.

What is the CATALYST for photosynthesis?

Answers

Answer:

I'm pretty sure it's chlorophyll

Answer:

Credit: Brookhaven National Laboratory Chemists at the U.S. Department of Energy's Brookhaven National Laboratory have designed a new catalyst that speeds up the rate of a key step in "artificial photosynthesis"—an effort to mimic how plants, algae, and some bacteria harness sunlight to convert water and carbon dioxide into energy-rich fuels.

Explanation:

We're surrounded by living creatures that we can't see. What are some ways that tiny living things can affect your life, health or environment? Bacteria are tiny

Answers

Answer:

Microorganisms that are not visible are so called because their measurements are in micrometers and even nanometers.

We usually talk about viruses, bacteria, fungi and even parasites.

Explanation:

Microorganisms are mostly pathogens for humans, but others make up the commensal biota of the same living being.

Not all microorganisms need the same means to live and develop as large organisms such as those that are simple to the human eye.

Some microorganisms are seen by optical microooscopy and others smaller by electronically.

For all but which of the following reasons do old-Earth creationists think the Earth is about 4.6 billion years old?

Answers

Answer: Scientists tried to determine Earths age via our planets layers of rock, which must have been built over time.

Explanation: PLEASE GIVE BRAINLIEST IT HELPS ALOT

Which adaptation is likely to increase the chances of survival of an organism in an arctic environment? (3 points)
White coat, as it protects from predators
Brown coat, as it protects from temperature
Thick coat, as it protects from predators
Thin coat, as it protects from temperature

Answers

Answer: White coat, as it protects from predators; is the answer. :)

Explanation: lmk if I’m right

Answer:

i think its white coat

Explanation:

pls tell me if im wrong, i hope this helps

Which of these best describes a climax community? *
1 point
a growing forest with varied tree and shrub species after a wildfire
a balanced population of clownfish and sea anemones in a coral reef ecosystem
a booming population of plankton after farming that increased fertilizer runoff
a decreasing population of deer and oak after a hunting season and deforestation
When an ecosystem loses biodiver

Answers

Answer:the third one

Explanation:

Are theories used to predict future events?

Answers

Yes or used for fun. Some theories are used for both they’re both serious and funny theories out there. The serious ones are the ones ppl are afraid are gonna happen in the future

Answer :no

Explanation:A theory presents a systematic way of understanding events or situations. It is a set of concepts, definitions, and propositions that explain or predict these events or situations by illustrating the relationships between variables. Theories must be applicable to a broad variety of situations.

In the image above, which is X?

Group of answer choices

1 year

1 light-year

1 AU

1 km

Answers

Answer: km

Explanation:

Answer:

1 AU

Explanation:

hope i helped :)

A molecule has been isolated from a cell. The molecule's structure has a three dimensional shape and is made of folded chains of amino acids. The function of this molecule is enzymatic catalysis of glycolysis. An analysis of this molecule would show that it contains which of these elements that would NOT be found in carbohydrates? A) carbon B) nitrogen C) oxygen D) phosphorus E) sulfur

Answers

Answer:

B) nitrogen

Explanation:

According to this question, a molecule which has been isolated from a cell has a three dimensional shape made of folded chains of amino acids. The molecule functions in the enzymatic catalysis of glycolysis. Based on the description of this molecule, it can be determined that it is a PROTEIN.

This is because PROTEINS are the biomolecules that are composed of amino acids monomers. The three dimensional shape of the molecule represents the protein at the TERTIARY LEVEL. However, in the structure of the amino acids, which forms the protein molecule, a central carbon is attached to a carboxyl group (-COOH), an anime group (-NH2) and a R side chain.

The protein molecule, therefore, contains NITROGEN element, which cannot be found in carbohydrates (made up of only carbon, hydrogen and oxygen).

An analysis of this molecule (protein) would show that it contains this chemical element that would not be found in carbohydrates: B) nitrogen.

A molecule with a three (3) dimensional shape and comprises folded chains of amino acids describes a protein.

Also, one of the function of protein is the enzymatic catalysis of glycolysis.

Generally, protein is a macromolecule which is formed as a result of the union of many folded chains of amino acids.

The molecular structure of protein is made up of the following:

A carboxyl group (COOH).An anime group (NH2).A R-side chain.

In conclusion, an analysis of protein would show that it contains nitrogen which would not be found in carbohydrates.

Read more: https://brainly.com/question/14681125

Need help, please!!! (Very important!)


sixth mass extinction.

What evidence do we have that we are losing species at more than the normal rate?

Answers

Answer:

Most ecologists believe that we are in the midst of the sixth mass extinction. Humanity’s impact on nature, they say, is now comparable to the five previous catastrophic events over the past 600 million years, during which up to 95 percent of the planet’s species disappeared. We may very well be. But recent studies have cited extinction rates that are extremely fuzzy and vary wildly.

Explanation:

What are riparian buffers?

Answers

Answer: A riparian buffer or stream buffer is a vegetated area near a stream, usually forested, which helps shade and partially protect the stream from the impact of adjacent land uses. It plays a key role in increasing water quality in associated streams, rivers, and lakes, thus providing environmental benefits.

Explanation: Have a blessed day! Hopefully this helped!

Answer: Riparian buffers are the natural vegetation from the edge of a stream bank out through the riparian zone. The vegetative zone serves as a buffer to pollutants entering a stream from runoff, controls erosion, and provides habitat and nutrient input into the stream.

Explanation:

What is the answer? Please help! Need answer quickly!

Answers

Answer:

It is D

Explanation:

This is my question: Does brain save information?

Answers

Yes it does save information.

Describe the ways your proposed solutions decrease the negative effects of
habitat destruction and human activity on your selected ecosystem

Answers

Answer:

By  stopping the practice of fishing in that river area, it can restrict the

abundance of species from reducing in population. If fishing stops, then it

allows the animals to restart their reproductive cycle to increase their own

species population.

In which direction does diffusion occur?

Answers

The direction of diffusion is said to be 'down' or 'with' the concentration gradient. Diffusion stops when the concentration of the substance is equal in both areas. This does not mean that the molecules of substance are not moving any more, just that there is no overall movement in one direction.

which cell cycle does cyclin production begin

Answers

Answer:

it begins on the cell cycle

Explanation:

Accordingly, cells synthesize G1- and G1/S-cyclins at different times during the G1 phase, and they produce M-cyclin molecules during the G2 phase. Cyclin degradation is equally important for progression through the cell cycle.

hope this helps :)

-by chance may i get brainliest

Use the picture of an atom below to answer the question
Which statement best describes the part of the atom that is shown by the arrow?
0 It is an electron and it has a negative charge.
0 It is an electron and it has a positive charge
It is a proton and it has a negative charge.
It is a proton and it has a positive charge.

Answers

Answer:

It is an electron and it has a negative charge

The statement that best describes the part of the atom that is shown by the arrow is it is an electron, and it has a negative charge. The correct option is A.

What is an atom?

Particles inside atoms are referred to as subatomic particles. These can be found throughout the atom in various places. The particles are charged.

A neutron is neutral, a proton is positively charged, and an electron is a negatively charged particle that revolves around the nucleus. The nucleus contains neutrons and protons.

Valence electrons are the electrons that are present in the outer shell of the atoms. These electrons are free electrons to form bonds with the electrons of other atoms.

Therefore, the correct option is A. It is an electron, and it has a negative charge.

To learn more about electrons, refer to the link:

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PLZ HELP
What is the relationship between air pressure and wind?

Answers

Answer:

Wind is air pressure converted into movement of air. When air slows down, its pressure increases. The kinetic energy or momentum of a moving air mass is converted in static atmospheric pressure as the air mass slows down. This means that higher wind speeds will show lower air pressure readings.

Answer: As the Sun unevenly heats the surface of the Earth, air rises and sinks, resulting in high and low regions of air pressure. As air rises, the pressure lowers and surrounding air moves in to replace it, causing wind. The more the pressure changes over a given distance, usually the faster the wind will be.

Explanation:

Joanna read that certain perfumes would cause bees to leave the hive and act in an agitated fashion. She decided to investigate the response of bees to five different perfumes- Ralph Lauren, Armani, Mark Jacobs, Vera Wang, and the last is an odorless liquid. She placed a saucer containing 20ml of perfume A 10 meters from a beehive. She then recorded the total number of bees that emerged from the hive during a 15 minute interval and made observations on their behavior. Using a 30 minute interval between tests to allow recovery time for the bees, she then repeated the procedure to test the remaining three samples. Each test was conducted on the same day with similar weather conditions. whats the independent variable

Answers

Answer:

PERFUME

Explanation:

In an experiment, the independent variable is the variable that is changed or manipulated by the experimenter in order to effect a measurable response in the dependent variable.

In this experiment, Johanna is trying to investigate the response of bees to five different perfumes- Ralph Lauren, Armani, Mark Jacobs, Vera Wang, and an odorless liquid, which is the control. Hence, the PERFUME is the independent variable because it is the manipulated variable.

Do theories describe natural phenomena or do laws describe natural phenomena

Answers

Answer:

Middle School (6-8) Theories are explanations for observable phenomena. ... Laws are regularities or mathematical descriptions of natural phenomena. A hypothesis is used by scientists as an idea that may contribute important new knowledge for the evaluation of a scientific theory.

Explanation:

Which of the following types of cells is most likely a large number of Golgi bodies?
A. Muscle cells
B. Red blood cells
C. Gland cells
D. Heart cells

Answers

Answer:

option d cos the heart does more work than others

PLEASE HELP FAST!!!
The two lists below are notes two students wrote. Their task was to list differences between plant and animal cells. Study the two lists. Which student is correct?

Student 1

Only plant cells have a cell wall.

Cytoplasm is only found in animal cells.

Plant cells have larger vacuoles.

Only animal cells have a chloroplast.

Student 2

Only plant cells have chloroplasts.

Plant cells have a large central vacuole.

Only plant cells have a cell wall.

A: Student 2 only

B: neither Student 1 nor Student 2

C: both Student 1 and Student 2

D: Student 1 only

Answers

Answer:

Only student 2 is correct.

Explanation: Both plants and animals have cytoplasm, only plants have chloroplast, large central vacuole is the correct description, and only plants have cells walls.

Hope this helps!

Answer: only Student 2 is correct.

Explanation:

Show work

13.5mm = ?m

Answers

Answer:

0.0135

Explanation:

Move the decimal place three times to the left

0.0135
Work: Mili means 10^-3, so you would move the decimal point to the left three times.

Which of these best defines environmental ethics?
A. The moral relationship between human beings who have an ethical standard about the environment
B. The moral relationship between human beings and the environment, including non-human life forms
C. A movement where people think of better ways to deal with environmental issues
D. The way non-human life forms relate to their natural environment

Answers

Answer:

B..........................

A movement where people think of better ways to deal with environmental issues is best defines environmental ethics.

What are environmental ethics?

Environmental ethics is an established field of practical philosophy "which reconstructs the essential types of argumentation that can be made for protecting natural entities and the sustainable use of natural resources."

Environmental ethics is a branch of applied philosophy that studies the conceptual foundations of environmental values as well as more concrete issues surrounding societal attitudes, actions, and policies to protect and sustain biodiversity and ecological systems.

Environmental ethics provides moral grounds for social policies aimed at protecting the earths environment and remedying environmental degradation.

Learn more about environmental ethics:

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Which one of the following statements about enzymes is TRUE?

a
Enzymes reduce the amount of energy needed for a reaction to occur.
b
Each enzyme can react with a wide range of reactants.
c
Enzymes are produced quickly because they are used up so quickly.
d
Enzymes are a type of carbohydrate.

Answers

Answer:

A is true

Explanation:

because.

what is the definition of pathogens?

Answers

Answer:

a bacterium, virus, or other microorganism that can cause disease

Explanation:

i have to write an Ocean Observation Method Paragraph can some one help me please?

Answers

Answer:

Changes in marine biodiversity—the variety and variability of life in the ocean—can be an early indicator of change, provided it's noticed. The U.S. Marine Biodiversity Observation Network (MBON) aims to ensure that scientists not only notice changes in biodiversity at locations around the nation, but also have the tools in place to better understand what these changes tell us about ocean health over time. But marine life doesn't know borders. That's why the U.S. network also supports international cooperation with other marine biodiversity networks, research institutions, governmental and non-governmental organizations and stakeholders around the world towards development of a truly

Explanation:

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