What are the small air sacs called that exchange gases in the lungs? valves chambers alveoli nodes.

Answers

Answer 1

Answer:

I would go for alveoli

Explanation:

Cus


Related Questions

the ability to conserve is most applicable to a lilly to which area
1. social studies
2.math
3.reading
4.art

Answers

It’s should be 1
Have good day

Choose all the answers that apply.
Which of the following conditions are necessary for fossilization?


presence of minerals

warm temperature

exposure to oxygen

stable geological conditions

rapid burial

Answers

Answer:

warm temperature

Explanation:

it helps fossilzation

One theory of aging that makes apparent commonsense postulates that organisms have only so much energy to expend in a lifetime. Therefore, the basic idea is that the rate of a creature's metabolism is

Answers

Given what we know, we can confirm that the basic idea resulting from these studies is that a creature's metabolism is related to its lifespan.

How is metabolism related to lifespan?

From the studies done and the comparison of the lifespan of certain species in relation to their metabolic rates, scientists have noticed that metabolism and lifespan are inversely proportional. The slower the metabolism of an organism, the longer that organism can live.

Therefore, we can confirm that the basic idea is that a creature's metabolism is inversely proportional to its lifespan, meaning that the faster the metabolism, the shorter the lifespan of the creature in question.

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Please help, I’ll mark as brainliest!

Answers

Answer:

0.05 210

Explanation:

is it right? sßsss

What is the relationship between systematics and taxonomy?.

Answers

The primary distinction between taxonomy and systematics is that taxonomy is concerned with the classification and naming of creatures, whereas systematics is concerned with the determination of organisms' evolutionary relationships. This means that systematics determines whether or not different organisms share a common ancestor.

How long do employers need to keep the records for osha bloodborne pathogens standard training?.

Answers

Answer:

Training records are also keep confidential and must be maintained for at least 3 years following the training.

The steepest slope on this hill can be found on the side that is facing which direction?

Answers

Answer: the answer is northeast

Explanation:

Answer:

Northeast

Explanation:

To find the steepest part of a topographic map, simply look at the contour lines and if they are close together, they are steep, but if they are distanced fairly they are at a gentler slope range. Also if they are very far apart the land would be flat, which is both good for farming and housing. Since there was no topograpic model of a land structure given in this answer, I chose to go with assumptions of most land structures such as mountains or volcanoes which have commonly had the steepest part be in the Northeast, as this fact can be support by geological evidence and the movement of the plate tetonic and the convergent boundaries that border most of the mountains on the planet earth.

Hope this helps,

- ROR

Is this right, please help. I’ll mark as brainliest

Answers

yes! excellent job answering this question :)

A segment of DNA that codes for RNA, and can vary in length from a few hundred to as many as two million base pairs in length best defines a(n)

Answers

We can confirm that a segment of DNA that codes for RNA and can vary in length from a few hundred to as many as two million base pairs in length best defines a gene.

What is a gene?

To expand on the definition given, we can say that a gene is, as mentioned, a series of base pairs known as nucleotides that will code for RNA. The RNA in question is messenger RNA that will later become a protein. Through this process, genes code for every aspect of an organism and will determine its morphology and all other biological aspects.

Therefore, we can confirm that a segment of DNA that codes for RNA and can vary in length from a few hundred to as many as two million base pairs in length best defines a gene.

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how does one change any form of DNA??

Answers

Answer:  You need to change your emotions and the way you receive and retransmit it inwards and outwards. You also need to change your thoughts. But in doing so it can result in the of headaches and nausea sometimes.

Answer:Dna often rearranges itself by a process call recombination which proceeds via a variety of mechanisms. Occasionally DNA is lost during replication leading to a mutation. Many chemicals mutagens, some exogenous, some man-made some environmental are capable of damaging Dna.

Explanation: Here is your answer

A biological classification of various kinds of organisms is a(n) a. grouping. b. genera. c. anthropomorphism. d. taxonomy.

Answers

Answer:

the answer is the c part

Explanation:

Please help, I’ll give brainliest.

Answers

The answer is: B - halfway between the poles.
B.
“Halfway between the poles”

List the type of molecules that generally act as intermediate or relay molecules.

Answers

Answer:

proteins

Explanation:

Many signal transduction pathways amplify the initial signal, so that one molecule of ligand can lead to the activation of many molecules of a downstream target. The molecules that relay a signal are often proteins. However, non-protein molecules like ions and phospholipids can also play important roles

a) A plant has YySs. What is the phenotype? (1 point)

Answers

A plant can have yellow (Y) or green (y) leaves. It can also have smooth (S) or rough (s) seeds. Answer the following questions about this plant.

Answer:

Y = yellow leaves

y = greed leaves

S = smooth seeds

s = rough seeds

The presence of the dominant traits (the capital letters) dictates that the plant has yellow leaves and smooth seeds.

Explanation:

ap3x

if a scientist want to determine the are of the leaf what observation tool would he need

Answers

Answer:

Leaf area (A) can be simply calculated by multiplying the product of leaf length (L) and width (W) by a constant (i.e., the Montgomery parameter; MP).

Explanation: Hope this helps!

Questions are attached below!!!!!!!! I'm pretty sure for question #2 the answer is B). 2 but I need help on the others!!!!!!!!
*PHYSICAL SCIENCE* PLS HELP ME OUT THXS!!

Answers

Answer:

1) NH₃ and HCl

2) synthesis

3) 2

Explanation:

1) the reactants are always on the left side and the products are always on the right side

2) In a synthesis reaction A + B ➜ AB

3) The full balanced equation: 2H₂ + O₂ ➜2H₂O

In a chemical compound, would you expect an oxide ion to be joined with one atom of calcium or
one atom of potassium? Why?

Answers

Answer:

An oxide ion, an oxygen ion with a -2 charge, should be joined with 1 atom of calcium in a chemical combination. Ca+2 O-2 would create CaO, just as it would in the formation of a compound, as we can see from the chemical formula.

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How many chromosomes are found in a human somatic cell nucleus?.

Answers

46

In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46

46 chromosomes are found

Select the correct answer.

Gary is suffering from pleurisy. Which organ is most likely to get damaged?

A.

intestine

B.

heart

C.

brain

D.

liver

E.

lungs

Answers

Lungs, pleurisy is a disease that affects the wall in between the lungs, that worsens with breathing

Explain how ecosystem services link rural lands with urban lands?.

Answers

Ecosystem services link rural lands with urban lands because people living in urban lands need resources that only come from rural areas such as crops, clean drinking water, fertile soil, and trees. ... Humans use forest land for harvesting wood, wildlife, fish, nuts, and other resources.

The advantages that come from ecosystems to people are called ecosystem services. Clean air and water, food production, and recreational activities are just a few of these advantages.

What is ecosystem?

An ecosystem is a region where a bubble of life is created by plants, animals, and other organisms interacting with the weather, environment, and other factors.

First, rural lands offer crucial ecosystem services that are necessary for metropolitan regions to function.

Second, urban regions can provide rural areas with crucial ecosystem services.

Urban areas, for instance, might offer markets for agricultural products as well as financial and technological support for sustainable agricultural methods.

Third, the viability of both urban and rural communities depends on their connections. The movements of materials, energy, and information that unite urban and rural areas create a connection between them.

Finally, ecosystem services act as a vital link between rural and urban areas.

Thus, this way, ecosystem services link rural lands with urban lands.

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Evolution occurs in response to a change in the environment. Environmental change often involves other species of organisms. Which of the following examples BEST represents an example of coevolution?
Group of answer choices

A.Wolves and dogs share a common ancestor due to the fact that 99.8% of their genes are the same.

B.As a pinyon pine developed large nutritious seeds, the pinyon jay evolved a pouch to carry the seeds.

C.Sharks and dolphins both developed characteristics, such as a light underbelly and a darker upper surface, which helps both blend in with the ocean environment.

D.A fish and a lizard both have similar traits, such as gills and a curved tail while in the embryonic stage of development.

Answers

Answer:

c is the answer

hope it helps you

3. What are the four main ways of seed dispersal?​

Answers

The most common methods are wind, water, animals, explosion and fire. Dandelion seeds float away in the wind.

A wave has a wavelength of 5 and a frequency of 100hz. what is it's velocity?​

Answers

Answer: 500 velocity

Explanation: Wave velocity (m/s) =Wavelength (m) * Frequency (Hz) Example calculation. I found this by using calculation of wavelength times frequency and the answer will be your velocity.

How does agriculture cause
water pollution?
A. pesticides and chemicals runoff into
waterways
B. pesticides are released into the air
C. burning crops release pollutants into the
air

Answers

Answer:

A. pesticides and chemicals runoff into waterways

Explanation:

Its a fact and so.

In B. pesticides can cause air pollution by releasing harmful gas but does not affect water in anyway.

C. same as B. it does not cause water pollution but more likely to cause air pollution.

In A. when excess pesticides run away because of rain water falling on the soil and reaches to river to cause water pollution.

Newborn babies and hibernating animals contain a large amount of brown adipose (fat) tissue (BAT). Certain proteins in the BAT cells increase the permeability of the inner mitochondrial membrane to protons, disrupting the proton gradient. Which of the following best predicts the effect of disrupting the proton gradient in BAT?
А. The pH of the matrix will increase, allowing the production of more ATP per gram of substrate.
B. The pH of the intermembrane space will decrease, allowing a steeper proton gradient to form.
С. Electron transport and oxidative phosphorylation will be decoupled, generating more heat but less ATP.
D The number of protons available to pass through ATP synthase will increase, resulting in more ATP.

Answers

The statement 'the pH of the matrix will increase, allowing the production of more ATP per gram of substrate' best predicts the effect of disrupting the proton gradient in BAT. It is a step of cellular respiration.

Cellular respiration and proton gradient

Cellular respiration refers to the chemical reactions where aerobic cells can produce ATP by using the energy from foods and oxygen.

Cellular respiration has three stages: glycolysis, the Krebs cycle, and oxidative phosphorylation.

During oxidative phosphorylation, the movement of electrons is coupled to a proton gradient across the inner mitochondrial membrane to generate ATP.

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What happens in a decomposition reaction? O A. Two or more substances combine to form one substance. B. Two ions trade places. O C. Larger compounds break down into two or more smaller compounds O D. The charges of the atoms change.​

Answers

Answer:

C. Larger compounds break down into two or more smaller compounds.

Explanation:

During a decomposition reaction, the bonds between the atoms break down in the starting substance. The atoms then rearrange to form new bonds, resulting in new substances with properties different from the starting material.

what is true about the forces on a car stopped at a Red light​

Answers

Answer:

In this case, the two backward forces (air resistance and friction) perfectly balance the applied force of the wheels on the road in the opposite direction. Now unbalanced, those forces acting backward on the car slow it down, which we also know as negative acceleration

Explanation:

After dna replication, how many double-stranded dna molecules exist?.

Answers

Answer:

I believe the answer is 2. After DNA replication, there are two double-stranded DNA molecules.


I hope this helps.

What would it look like if human eye colors showed codominance? Incomplete dominance? Describe both.

Answers

Answer:

Codominance means that neither allele can mask the expression of the other allele, in humans the eye colors of both alleles would be mixed. Like a brown-black. Incomplete dominance is if a parent had blue eyes and the child has brown eyes.

Explanation:

Every tRNA has an anticodon. What is the purpose of an anticodon?

Anticodons tell the tRNA when to stop retrieving amino acids.
Anticodons help the tRNA retrieve the correct nucleic acid.
Anticodons help the tRNA retrieve the correct amino acid.
Anticodons tell the tRNA when to begin retrieving amino acids.

Answers

Answer:

Anticodons help the tRNA retrieve the correct amino acid.

Explanation:

Function of Anticodons The function of anticodons is to bring together the correct amino acids to create a protein, based on the instructions carried in mRNA. Each tRNA carries one amino acid and has one anticodon.

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