Describe two specialized cells in the respiratory system that enable the lungs to function?

Answers

Answer 1

Answer:

Respiratory epithelial cells line the respiratory tract from trachea to bronchi into bronchioles and alveolar sacs. ... The goblet cells produce and secrete mucous to trap pathogens and debris within the airway tract. Basal cells are progenitor cells that differentiate into cells types found within the epithelium.


Related Questions

The graph shows the history of human population growth

Answers

Answer:

exponential growth, c.

Exponential growth is iconic for ramping up, resulting in a near vertical line by the time its really going.

The point in a eukaryotic cell cycle at which DNA condenses to from visible chromosome?

Answers

Answer:

Prophase

Explanation:

There are different stages in the eukaryotic cell cycle. Different cellular occurrences are found in each of this stages. The stages include; prophase, metaphase, anaphase, telophase etc.

Prophase, which is the first division stage, is characterized by the dissociation of the nuclear membrane, tightening of DNA coils called chromatin by condensin proteins (condensation) to form X shaped visible chromosomes.

what is photosynthesis?​

Answers

Answer:

i have written in simple language hope it help u

Explanation:

the process in which green plants prepare their own food with the help of sunlight, water and carbon dioxide is known as photosynthesis.

why are living organisms classified?​

Answers

Answer: See explanation

Explanation:

An organism refers to a living thing which can react to stimuli, move, grow, has an organized structure, reproduce, and can adapt.

Living organisms can be classified into kingdom, phylum, classes etc. The reason the classification of living organisms include:

1. Gives information about diversity of living organisms.

2. Easy identification of the organisms

3. Shows inter-relationship among the organisms.

4. Helps in understanding the evolution of the living organisms.

living organisms are classified so that it becomes easier for us to examine or study organisms

.Origin of species was given by

Answers

Answer:

Charles Darwin

Explanation:

They were given by Charles Darwin

I need help not sure what to do

Answers

G is with C and A is with T in DNA so the answer is D

Answer:

bskdjfiehu9xitasiyst8zohlxoydti

write at least three difference between arteryand vein with diagram​

Answers

bonjour,

1. Arteries carry blood from the heart to the rest of the body, whereas veins carry blood from the rest of the body back to the heart.

2. Almost all arteries carry oxygenated blood and almost all veins carry deoxygenated blood.

3. Arteries have a thick elastic muscle layer, whereas the muscle layer for veins is much thinner.

Answer:

Difference Between Artery and Vein Artery 1. Vessels which carry blood from the heart to various body parts  2. Arteries carry oxygenated blood from the heart except pulmonary artery  3. Arteries have thick elastic muscular walls  4. Valves are absent  5. Blood flows under high pressure  Vein  1. Vessels which carry blood from the various body parts to the heart  2. Veins carry deoxygenated blood from the various body parts except pulmonary vein  3. Veins have thin non elastic walls  4. Valves are present to prevent the backward flow of blood  5. Blood flows under low pressure

Hippopotamuses live in Africa’s rivers and lakes. They’re herbivores and coexist with other herbivores and carnivores. Which action could lead to a decrease in the number of hippos?

Answers

Answer:

If any of the other carnivores are predator they might eat the hippos. If the other herbivores population incresses there food supply may drop. If there is a drought there habitat will be in danger. Pouchers are also a threat to this animal.

Explanation:

Maybe the decrease in plants they eat Otherwise known as deforestation

The Hippopotamuses lives in the river and lakes of Africa. They are herbivores and co exist with other herbivores and carnivores.

There can be two possible reasons for the decrease in the number of hippos.

The carnivores lion and hyena can eat the hippo(young hippos) which will reduce the number of hippos.

The other reason could be reduction in the number of plants that hippos eat.

hope this helps


Help!

Which of the following strategies can reduce urban sprawl?

A. Increasing the number of green belts

B. Decreasing the length of city blocks

C. Creating expensive housing in the city

D. Eliminating high-rise homes and offices

Answers

Answer:A

Explanation:

Which of the following is a cost of using dams as a source of freshwater

Answers

Answer:

WHAT IS THE CUTTING DOWN OF TREES

Explanation:

YOU CUT DOWN OUR PRECIOUS TREES TO BUILD THE DAMS

HELPP
Why is it important that oxygen and carbon dioxide levels be closely regulated in the human body?

A) Both gases are needed for the proper functioning of cell processes
B) Oxygen is needed for cell processes and carbon dioxide is a waste product
C) Both gases are waste products that need to be removed from cells
D) The carbon and oxygen from the gases are needed to build new molecules.

Answers

Answer:

B) Oxygen is needed for cell processes and carbon dioxide is a waste product

Explanation:

Cellular respiration refers to the cellular mechanism by which organisms combine molecular oxygen (O2) with organic compounds obtained from foods, it is a chemical reaction that releases 1-energy (ATP), which is used by cells to carry out its functions, 2-carbon dioxide (CO2) and 3-water (H2O). During the gas exchange, O2 is first transported from the lungs to the blood cells, which subsequently deliver nutrients and O2 to all cells of the body. Simultaneously, CO2 diffuses from cells to tissue capillaries, and then this waste product passes from the bloodstream to the lungs where is eliminated.

Fertilizer sacks have a three- number value called the NPK value written on them. What does the NPK stand for (18-24-12 written on the bag)?

Answers

Answer:

it's a label number

Explanation:

Every label carries three conspicuous numbers, usually right above or below the product name. These three numbers form what is called the fertilizer's N-P-K ratio — the proportion of three plant nutrients in order: nitrogen (N), phosphorus (P) and potassium (K).

Scientists have developed a new type of margarine that contains plant ingredients. They expect that the margarine will lower blood cholesterol levels. They want to test their hypothesis by comparing the blood cholesterol levels of people who will consume the new margarine with those who will consume regular margarine for a few days. Both groups of people will know which type of margarine they are to consume. Which type of research design will the scientists consider

Answers

Answer:

intervention study

Explanation:

The intervention study or research helps to examine the effects of an intervention of an outcome of interest. The main purpose of this type of study is to endenger the desirable of the individuals in need.

Such studies are often prospective.

In the context, scientist who have developed a new margarine containing plant ingredients. The scientists wanted to test the hypothesis whether consuming this new margarine lowers blood cholesterol in the body or not. They gave people to consume the margarine and is doing the research study. Such a research design is called as the intervention study.

What is the function of hemoglobin in the body?

A) It binds with oxygen in red blood cells and it is carried to all parts of the body
B) It carries carbon dioxide around the body mainly
C) It causes stomach ulcers/stomach pain/gas
D) It is a protein marker determining our blood type

Answers

Answer:

A

Explanation:

Answer:

A....it binds with oxygen in red blood cells and it is carried to all parts of the body

Explanation:

haemoglobin binds with oxygen to form oxy- haemoglobin..and transported to where it's needed for example cells for metabolism

How many phylums are there in the kingdom animalia ​

Answers

Answer:

31 phylums in anamalia kindgom

Explanation:

there is no guarantee that this is the correct answer if the number of phylums are changing

How do consumers obtain the carbon that they need for their life processes?

They breathe it in from the surrounding air.
They break down the plants and animals they eat.
They absorb it from the surrounding soil.
They absorb it from water through their pores.

Answers

Explanation:

They break down the plants and animals they eat

this is because, plants absorb carbon from the atmosphere to grow in the process of photosynthesis, then consumers obtain their food from plants hence obtaining carbon

Answer: B. They break down the plants and animals they eat.

Explanation:

Just got it right on edge

The endosymbiotic theory helps to explain the origin of which structures?
mitochondria
ribosomes
nuclei
cell membranes

Answers

The right answer is mitochondria

sexual reproduction drives
a)meoisis
b) genetic symmetry
c) reproductive strategies
d) genetic diversity​

Answers

Answer:

a) Meiosis

Explanation:

Meiosis is a form of cell division that occurs in sexually reproducing animals' germ cells and is utilized to create gametes such as sperm and egg cells. It takes two rounds of division to produce four cells, each with only one copy of each chromosome.

what is science?????​

Answers

Answer:

Science is the study of nature around us.

Answer:

As scientist discovered that Science is the method of learning everything about the natural world.

What is significant about the homeotic genes
in many different organisms?
A. They are all very different in every individual organism.
B. They cause the organisms to evolve.
C. They are similar among organisms early on in development.
D. They control small specific functions in the cell.

Answers

Answer:

they control small specific functions in the cell

Explanation:

genes are very crucial in every organisms since they determine the tiniest composition of the cell,evolving from the parent organism.

Answer: it’s c

Explanation:I just answered question

write four different between parenchyma and collenchyma?​

Answers

Answer:

The major distinction between parenchyma, collenchyma, and sclerenchyma cells is that parenchyma cells are engaged in photosynthesis, storage, and secretion, whereas collenchyma cells support and transport nutrients, and sclerenchyma cells support, protect, and transport water.

OAmalOHopeO

What is the likely cause for the Cheetah losing genetic diversity?

Answers

Cheetahs face extinction pressure from climate change, hunting by humans, and habitat destruction, which is reducing the size of their populations. Cheetahs' own genes also pose a challenge to their continued survival

Answer: Cheetahs face extinction pressure from climate change, hunting by humans, and habitat destruction, which is reducing the size of their populations. Cheetahs' own genes also pose a challenge to their continued survival

Explanation:

Hope it helps you if not sorry

what team was credited with laying the foundation of understanding DNA with x-ray crystallography studies?

Answers

Scientist Rosalind Franklin

In maize, yellow kernel color is dominant to white, and wrinkled kernel shape is dominant to the smooth form. Considering both of these traits jointly in self- fertilized dihybrids, the progeny appeared in the following numbers: 193 white, genes assort independently? Support your conclusion using appropriate statistical analysis. wrinkled; 184 yellow smooth; 556 yellow, wrinkled: 61 white smooth

Answers

Answer:

yellow, wrinkled are high in population whereas white smooth is lower in population.

Explanation:

Due to self-fertilized dihybrids, the offspring are yellow wrinkled, hybrid and white smooth. 556 yellow, wrinkled are high in population because of the dominant allele while on the other hand, 61 white smooth are obtained and less in number due to recessive nature that comes very little in the population. 184 yellow smooth and 193 white, wrinkled are the hybrid offspring that has both different characteristics from their parents.

Now look at the volcano map what type of boundary tends to give rise to volcanic activity

Answers

Answer:

there's no map but

Explanation:

There are about 1,500 potentially active volcanoes worldwide, aside from the continuous belts of volcanoes on the ocean floor at spreading centers like the Mid-Atlantic Ridge. About 500 of those 1,500 volcanoes have erupted in historical time

Answer:

Volcanoes occur primarily on convergent boundaries, specifically oceanic-continental convergent boundaries.

Explanation:

exact answer

What is true of increased levels of CO2 in the atmosphere?
A. It's poisonous to plants.
B. It helps some plants grow better, while others experience less growth.
C. It reduces the amount of climate change.
D. It always helps plants grow.

Answers

Answer:

D

Explanation:

As the human population grows, some minerals in everyday products could
become scarce. Which of the following is the best way to address this
problem?

A. Explore uses of more plentiful minerals.

B. Use more energy to locate existing minerals.

C. Move human communities to uninhabited areas.

D. Construct more and larger-sized landfills.

Answers

Answer:

B. Explore uses of more plentiful minerals

A. Explore uses of more plentiful minerals

Please help me with this! *30 *points Picture included

Answers

Answer:

1.) The first picture is mitochondria and the second picture is chloroplast

2.) The second one is only in plants

3.) The first one is found more commonly in animal cells

4.) Glucose & oxygen goes into #1 and releases ATP energy and water & carbon dioxide (waste) during cellular respiration

5.) Sunlight and water goes into #2 and releases oxygen (waste)

6.) The waste product from mitochondria is what the chloroplast needs to perform photosynthesis and vice versa for mitochondria where the waste product from the chloroplast is what mitochondria needs to make ATP energy

7.) They both have folds and membranes because this is how energy is transferred from one place to another.

Explanation:

According to the punnet square for this cross, what percentage of offspring is predicted to have blue feathers?

Answers

Needs the punnet square to answer

If the gene sequence of DNA is A T T C G A C T C G what will the complementary mRNA sequence be that is made during transcription?

Answers

Answer:

U A A G C U G A G C

Explanation:

The complementary bases in RNA are the same as DNA with G-C (guanine to cytosine).

But, they are different in that RNA has A-U (adenine to uracil) instead of A-T (adenine to thymine).

Using these RNA base pairs of G-C and A-U, create the complementary mRNA sequence:

A T T C G A C T C G

Translate:

U A A G C U G A G C

So, the complementary mRNA sequence will be U A A G C U G A G C

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