Which structure is directly involved in gas exchange?
ESSE
O trachea
pharynx
O alveoli
O bronchi

Answers

Answer 1

Answer:Alveoli

Explanation:cause I got it wrong from someone else


Related Questions

Que tipo de ecosistema tienen los pingüinos emperador y Adelia?

Answers

Answer:

Los pingüinos Adelia viven en el continente antártico y en muchas pequeñas islas costeras circundantes. Pasan el invierno en alta mar en los mares que rodean el hielo antártico.

Los pingüinos emperador viven exclusivamente en entornos antárticos gélidos. Prefieren reproducirse durante el invierno, cuando el hielo se congela y se estabiliza. Estos pingüinos suelen crear colonias de reproducción en áreas cercanas a icebergs y acantilados helados, que los protegen de los peores vientos fuertes.

Explanation:

te ayuda esto?

what are chromosomes
A. strands I'd DNA wrapped around proteins.
B. The alleles that cause certain traits.
C. Any organism that cause contains DNA
D. A form of virus that infects cells.​

Answers

Answer:

A. strands I'd DNA wrapped around proteins.

Explanation:

DNA is securely packed within the nucleus by chromosomes, which are thread-like structures. Histone proteins offer structural support for DNA by coiling it around them. During cell division, chromosomes assist in the replication and distribution of DNA. Each chromosome has a centromere, which separates the p (short) and q (long) arms. The centromere is found at the constriction point of the chromosome, which may or may not be the center.

OAmalOHopeO

Pretty sure it’s answer A my mans

You are part of a research group that is attempting to improve on the beneficial genetic modification of golden rice, to
further reduce global hunger issues. Which of the following is NOT a benefit you would see?
A. Rice crops growing in areas that were previously too harsh to grow in
OB. Cheaper rice crops
C. Larger rice crop yields
D. Rice crops that can also be put in fermenters to produce useable proteins

Answers

Answer:

A

Explanation:

The following that is NOT a benefit you would see is Rice crops growing in areas that were previously too harsh to grow in. Option A. This is further explained below.

What is genetic modification?

Generally, Genetic modification (GM) refers to a technique that allows for the introduction of foreign DNA into an organism's genome.

In conclusion, One drawback you would not experience is the cultivation of rice in climates where it was previously unfeasible to do so.

Read more about genetic modification

https://brainly.com/question/21411587

#SPJ5

Which part of the
upper respiratory
system is designed to
interact with food and
air?
A. larynx
B. nose
C. pharynx
D. trachea

Answers

Answer:

C.Pharynx

Explanation:

Which of the following would be examples of abiotic factors in a mountain river ecosystem?
fish, algae, and sand

sand, water, and fish

sand, water, and minerals

water, fish, and algae

Answers

Sand , water , and minerals

which of the following is true for a eukaryote?

A. it is one of the first life forms to appear on earth.

B. it doesn't have a nucleus and organelles.

C. it must be a multicellular organism.

D it evolved from prokaryotes

Answers

Answer:

D it evolved from prokaryotes

Explanation:

let me know if you have any questions

What type of organisms make up the majority of life on the surface of the pelagic zone?
chemosynthetic bacteria and invertebrates
seaweed and fish
mollusks and seaweed
plankton and algae

Answers

What type of organisms make up the majority of life on the surface of the pelagic zone?
Answer:
plankton and algae

Hope that help

The types of organisms that make up the majority of life on the surface of the pelagic zone are plankton and algae. That is the last option, as plankton and algae are the primary producers in the surface layer of the pelagic zone.

What are the zones of water?

The pelagic zone is the open ocean area that comprises the largest ecosystem on Earth. It is divided into different layers depending on the depth and amount of sunlight that penetrates the water. The surface layer of the pelagic zone, also known as the photic zone, is the layer that receives enough sunlight for photosynthesis to occur, and it is where most of the ocean's primary production takes place.

Hence, the types of organisms that make up the majority of life on the surface of the pelagic zone are plankton and algae, which is the last option.

Learn more about the zones of water here.

https://brainly.com/question/11545505

#SPJ2

Which substance, maple syrup or vegetable oil, has a higher viscosity? Explain how you know the answer.

Answers

Answer:

maple syrup

Explanation:

This is because viscosity is simply the resistance of a fluid to flow. A thicker fluid is more resistant than a lighter one. In this case maple syrup is thicker than vegetable oil thus more viscous than it.

6. What do fungi have in common with animals?

Answers

Answer:

Fungi are more like animals because they are heterotrophs, as opposed to autotrophs, like plants, that make their own food. Fungi have to obtain their food, nutrients and glucose, from outside sources. The cell walls in many species of fungi contain chitin.

A group is considered monophyletic if
A. all members of the group share a common ancestor that is included in the group.
B. all members share homoplastic traits.
C. the group does not contain the most recent common ancestor.
D. not all descendants of the common ancestor are included.
E. it is the most parsimonious grouping.

Answers

The answer would be e it is the most parsimonious grouping

Jurassic park book summary

Answers

Answer:

En una isla remota, un grupo de hombres y mujeres emprende una carrera contra el tiempo para evitar un desastre mundial provocado por la desmedida ambición de comercializar la ingeniería genética. Pero todos los esfuerzos resultarán vanos cuando el inescrupuloso proyecto quede fuera de control y el mundo a merced de unas bestias monstruosas...

Explanation:

Unique feature of osmosis is that
(1) energy is required
(2) it involves movement of solutes
(3) it occurs across membranes only
(4) it is seen only in animals

Answers

Answer:

I believe the answer is (3)

Explanation:

"Osmosis is a special type of diffusion, namely the diffusion of water across a semipermeable membrane"

"Osmosis only occurs with a semipermeable membrane"

Khan and sciencedirect

Complete a dichotomous key for the 10 leaves on the common leaves sheet

Answers

A dichotomous key might be considered a significantly useful tool to classify organisms. The key provides an easy and fast way for identification by describing different morphological traits, leading you to the correct taxonomic classification.

When you have an organism -or part of it-, and you need to identify it taxonomically, you use a dichotomous key. The key provides morphological descriptions about different taxonomic groups in an easy way to identify these traits in your individual.

It is simple to read a dichotomous key. The term dichotomous refers to how information is provided. You will always have two options (a and b, or 1 and 2), and you will have to choose one of them according to the characteristics of your organism. The key describes specific morphological traits of organisms that are useful for differentiation.

Probably you might need an atlas or a dictionary to understand some of the technical terminologies. You will also need to carefully observe your specimen, to get to distinguish different traits. If the specimen is too small you might need a loup.

Let us analyze simple example using a group of 5 organisms. Let us assume that you do not know their names, and you need to know what is the individual in the red circle (You will find it in the attached files).

Dichotomous key

Statement 1a ----------- The organism is a vertebrate ----------- Frog

Statement 1b------------ The organism is invertebrate ----------- Go to 2

Statement 2a ---------- The organism has a multisegmented

                                    and elongated body, with too many  ----- centipede

                                    legs.

Statement 2b ---------- The organism has a relatively short body

                                    and with fewer legs ------------------------------ Go to 3

Statement 3a ----------- The organism has 8 legs ----------------------- Spider

Statement 3b ----------- The organism has 6 legs ----------------------- Ant

As you can see, this a very simple example, but ilustrates how the key provides enough information for you to reah the correct option.

Related link: https://brainly.com/question/22714283

Answer:

do not use exactly. It will reset your assignment for plagiarism.

Explanation:

What is a nerve’s long threadlike bundle that conducts electrical impulses?

Answers

Answer:

A nerve is actually a long threadlike bundle of dendrites that conduct electrical impulses. Dendrite word derived from the Greek word 'dendron' which means tree. They carry messages in the form of electrical impulses to cell body, there are also wire like nerves called axon.

Explanation:

Hope it helps you

have a good day dear friend

identify 3 organisms that belong in the same phylum as Protozoans

Answers

Answer:

Algae, Protozoa, Heterotrophs

Explanation:

which best describes a bacterium

Answers

a unicellular prokaryote

Answer:

Bacteria

Bacteria are a type of biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Wikipedia

Explanation:

a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some that can cause disease.


You need to include more of which nutrient in your diet as compared to your
grandmother and why ?

Answers

Calcium and Vitamin D. Adults older than 70 need more calcium and vitamin D to help maintain bone health than they did in their younger years. ...

oil-rich countries in the middle east cover about 4% of earth's total land area but posses about 48% of the world's known oil reserves. what is the main reason for high concentration of reserves in this part of the world?

Answers

The correct answer is A. Geological processes.

Explanation

Oil is a hydrocarbon of fossil origin by geological processes that transforms large amounts of organic matter deposited on anoxic bottoms of seas or lake areas of the geological past, which were later covered by heavy layers of sediment. This causes organic materials to be transformed into oil by the heat and pressure of the upper layers. However, this phenomenon does not occur in all parts of the earth because in some, as in the case of the Middle East, there were large amounts of organic matter that became an oil reserve. So the correct answer is A.

Amylose is a form of starch made up of α glucose monomers that are bound by 1– 4 linkages.

Describe how the molecule would be affected if the subcomponents were joined by 1–6 linkages instead.
Explain how this might affect the function of the resulting molecule.

Answers

Answer: Carbohydrates usually function as energy storage or structural materials, and are composed of monosaccharides (simple sugars). All monosaccharides have three carbon atoms with a carbonyl group attached to one of the carbons, and hydroxyl groups attached to the remaining two. Monosaccharides are the primary fuel for metabolic processes, so we need the monosaccharides in carbohydrates to fuel our metabolic processes, making it an important part of our diet. If the subcomponents were joined by 1-6 linkages instead of 1-4 linkages, it wouldn't be called amylose, it would change to glycogen, making it less soluble. 

If the subcomponents of amylose were joined by 1-6 linkages instead of 1-4 linkages, the resulting molecule would have a branched structure instead of a linear one.

Amylose is a type of polysaccharide that is found in starch. It is made up of alpha glucose monomers that are joined together by alpha-1,4 glycosidic bonds.

If subcomponents were joined by 1-6 linkage if will result into a branched molecule named as Glycogen.

-The branched structure would make it easier for enzymes to break down the molecule, which could affect how quickly it is digested and how it is used for energy.

Therefore, the change in the linkage would result in a different structure and function of the molecule (glycogen) making it less soluble .

Learn more about amylose here:

https://brainly.com/question/30583995

#SPJ4

What is the Constant of “which bait works best for a fly trap?”

Answers

Answer:

Mix scraps of meat (the older, the better) with something sweet. Lots of people swear by using rotten fish or shrimp, which probably work best because they smell so much. Bait for Fruit Flies: Use fruit (the riper, the better), apple cider vinegar, fruit juice, syrup, wine, beer, or any combination

If a cell has 10 chromosomes when it begins mitosis, how many will it have immediately afterword?

Answers

Answer:

Explanation:

Therefore, there will be two daughter cells at the end of mitosis. Each will have 10 chromosomes, if the parent cell has 10. The chromsomes will not have sister chromatids because after mitosis, the duplicated pairs have separated into the two daughter cells. The cells will each be diploid, just as the parent cell was.

Explanation:

If a cell has 10 chromosomes when it begins mitosis, there are 15 will have immediately afterword.

A main strand of a DNA molecule in a protein coding region is transcribed along the following nucleotide sequence: 5' TACATTAAGCCG 3' . Assuming there is no stop codon in this DNA fragment, how many codons does this sequence contain

Answers

Answer:

4 codons

Explanation:

In a DNA sequence, codons are in a set of 3 base pairs.

So, we can calculate the number of codons in the sequence by dividing the total number of base pairs by 3.

There are 12 base pairs in the sequence. Divide this by 3:

12/3

= 4

So, there are 4 codons in this sequence.

Which of the following best depicts the use of Geographic Information Systems?

City planners using layered maps to decide where to build a park
Wireless routers providing internet signal


Government workers constructing a new interstate highway system


Retail stores advertising a new product

Answers

Answer:

City planners using layered maps to decide where to build a park

Explanation:

They are using the GIS data layering method...different aspects ir layers of an area are taken into consideration

For example they would look at schools close by, rivers and soil type. By combining those three characteristics they could make a choice of the best possible area a park should be built.

how does a single cell give rise to all the different types of cell, tissue, and organs in human body

Answers

Answer:

Over the course of hours, days, or months, the organism turns from a single cell called the zygote (the product of sperm meeting egg) into a huge, organized collection of cells, tissues, and organs. As an embryo develops, its cells divide, grow, and migrate in specific patterns to make a more and more elaborate body.

I HOPE THIS WILL HELP YOU IF NOT THEN SORRY

HAVE A GREAT DAY :)

answer h and i urgently
no explanation needed ​

Answers

Answer:

h. I think option c growth of an organism in not true

C
I think its the best answers

Which of these organelles is NOT in animal cells?

Ribosome
Endoplasmic Reticulum
Cell Wall

Answers

Cell wall is not found in animal cells

Define hypothesis


Thx!

Answers

Answer:

a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.

"his ‘steady state’ hypothesis of the origin of the universe"

difference between diabetes mellitus and diuresis?? please help​

Answers

Explanation:

If you have been in EMS long enough, you may well have encountered a patient with diabetes insipidus. Like many, you may have assumed that it is a variant of the common disease diabetes mellitus. Actually, diabetes mellitus and diabetes insipidus are totally unrelated other than the name. The term diabetes is derived from Latin (originally Greek) and means “to go through or siphon,” referring to a large amount of urine produced by the kidneys. The term melitus, in Latin, means “sweet.”  

 

Emulsifiers are Multiple Choice molecules with two nonpolar ends that can be used to disperse lipids into polar liquids such as water. molecules with a polar end and a nonpolar end that can be used to disperse lipids into polar liquids such as water. molecules with two polar ends that can be used to disperse lipids into polar liquids such as water. proteins that transport nonpolar substances in the bloodstream. proteins that transport polar substances in the bloodstream.

Answers

Answer:

molecules with a polar end and a nonpolar end that can be used to disperse lipids into polar liquids such as water.

Explanation:

The process of emulsification is very important in science. An emulsifier is a substance that is used to disperse hydrophobic substances in a polar substance such as water.

An emulsifier has a hydrophillic head and a hydrophobic tail. The hydrophillic head dissolves in a polar substance such as water while the hydrophobic tail dissolves in the lipid thereby dispersing the lipid in water.

You will create a molecular clock model for an arthropod gene. Follow these guidelines to make your model:

Your timeline will span from 90 million years ago to the present. The common ancestor in your model is an arthropod that lived 90 million years ago. The gene that you’ll track codes for a protein in the species’ venom.
The DNA sequence you’ll track contains 10 nitrogen bases. You can choose the order of the bases and where the mutations occur.
This gene mutates at a rate of approximately 0.76 base pairs every 17.1 million years. To build your model, calculate the estimated time period it takes for 1 base pair to mutate.
The first time period will only show the common ancestor. At the beginning of the second time period, three lineages will diverge from the common ancestor, each with a different mutation in their gene sequences.
The first and third descendant species will survive for the rest of the timeline. The second descendant species was extinct 50 million years ago.
Calculate how long it will take for one full base pair mutation to occur. Explain your reasoning by constructing a mathematical equation.

Answers

Answer:

The mutations occur at a rate of 0.56 base changes every 1 billion years. If this rate stays consistent, the mutation rate can be used to determine when different lineages of a particular species split

Answer:

It takes about 17.1 Million years for a base pair to mutate at a rate of 0.76 base pairs. To get the time it takes for one full mutation to occur, you must divide 17.1 to 0.76 and multiply it by 1. So, (17.1/0.76)×1=22.5. It would take about 22.5 million years for one full base pair mutation to occur. Having this being said, the first descendant with one base pair mutation would change after 22.5 million years from the common ancestor. For the second descendant, it would take 45 million years as 22.5 time 2 is 45. 5 million years later, the second descendant will become extinct while the first descendant survives. The third descendant will take about 22.5×3= 67.5 million years. Now, the first and third descendants will survive while the second descendant is extinct.

Please mark as brainliest :)

Other Questions
increased from 1432 to 2219. Which of the following is the approximate percent of increase22. Between the years 2000 and 2010, the number of births in the town of Danevillein the number of births during those ten years?a. 55%b. 36%c. 64%d. 42% simplify 3/4(4)1/3(3)1/4 2(2x+3)=3(3x+1)Dudhdhdjjdjdjm Which of the following is a monomial? A. 8x^2 +7x+3 B. x-1C. 9/x D. 7x What is the slope of the function? Then changed the line so it had a slope of 2, but still went through the same point. Which equation should Alejandra write to represent the new line? kiro and lito were assigned the same book to read for a class. kiro started reading on Saturday, and he's reading 20 pages a day. Lito didn't start until Sunday, but he is reading 25 pages a day. How many days will it take Lito to catch up to kiro and how many pages will they have each read? what system of equations represents this situation and how do you solve it? Find the area (in square feet) of a rectangle that measures 17" 3'10". Task 3 Correct the mistake in every sentence.1) I read his email where he sent in the afternoon.2) Sandra lives in a cottage whese has colourful windows.3) Steven opened the box - was full of bunnies.4) I have never heard of an animal who can speak Hungarian. Joe worked for three days. On the first day, he completed 1/2 of his work. On the second day, he completed 1/3 of the remaining work. What fraction of the work was left for the third day? cho hn hp gm alcl3 v fecl3 trnh by cch tch tng mui ring ra khi hn hp What is the ratio of 16 and 8 Georgia map - Letter JWhich city is located at letter B? Where is Savannah located? What city is located at letter D? purchased a book rs 500 sold 20%profit find its actual profit and selling price Which is our body part help us to maintain balance. 40 dogs and parrots in total (dogs + parrots = 40 in total) theres 130 legs, how much dog and parrots are there (need steps) TotalWinnings0Translate You are going to study into Spanish in the box below:The car is far away from the park What is language called when it creates or reinforces stereotypes, treatspeople unequally, insults people, excludes people, and can accentuatepersonal attributes in exclusion of other more important attributes?A. IllegalB. InclusiveC. DiscriminatoryD. DeclamatoryHelp How would A = L + O be rewritten to solve for O? Identify the type of equation: y-6 = 7(x+8) 5. a. Answer the following questions. What is density? Write a formula by showing the relation among density mass and volume.