Which of the five stages of respiration takes place at the alveoli?

Answers

Answer 1

Answer:

External respiration is the exchange of gases with the external environment, and occurs in the alveoli of the lungs.

Answer 2
The alveoli are where the lungs and the blood exchange oxygen and carbon dioxide during the process of breathing in and breathing out. External Respiration. Exchange of gases between air and blood at pulmonary capillaries (Alveoli) is the second stage. So it would be the 2nd stage

Related Questions

what is the complementary DNA for TACGGCTTA

Answers

Answer: ATG CCG AAT

Explanation: In complementary DNA, you will want to flip the letters.

A=T

T=A

G=C

C=G

A will never match with C or G. Vice versa.

Why do hunters kill young deers instead of the old?

Answers

Most hunters won’t kill a young dear it will be able to be alive for like 6 years they hunt the old deers an often leave the baby ones behind

What posture is a dog displaying if she is leaning away from your, body lowered, ears back, tail down, showing whites of her eyes and the corners of her mouth pulled back.

Answers

Answer: Fearful and worried posture

Explanation:

Since dogs cannot talk, their body languages are used to interpret whatever emotion or feeling they may be experiencing.

When a dog is afraid, she tries to look small. She lowers her body and and leans away so that her center of gravity is over her hind legs to  make a quick retreat easy. She also puts her tail down and ears flattened back to her skull. Her eyes also look rounder than normal and she shows the whites of her eyes (whale eyes).

All these tell that a dog is scared and worried or feeling tense.

Answer:

Defensive Threat Posture

Explanation:

Whale eye (whites of eyes showing)

Tail down or fully tucked

Piloerection

Ears back or flatten against head

Pupils dilated

Corners of mouth pulled back

Body lowered

Body leaning backward

A defensive threat posture indicates a dog is being self-protective. This is seen in a dog who is fearful and would prefer to run away from the situation, but may bite if provoked or cornered. Stress signals were offered in the beginning, however ignored and the dog is showing extreme fear.

HURRY

Which of the following phase changes occur due to an INCREASE in energy? (Pick all that apply)
a. Condensation
b. Boiling
c. Freezing
d. Sublimation
e. Melting

Answers

Answer:

Boiling

Explanation:

Boiling is an increase in energy.

Answer:

melting and condensation should go

Which structure inside plant cells helps in photosynthesis?

Chloroplast
Mitochondrion
Nucleus
Vacuole

Answers

Answer:

chloroplasts

Explanation:

chloroplasts

Photosynthesis takes place in chloroplasts; cell walls allow plants to have strong, upright structures; and vacuoles help regulate how cells handle water and storage of other molecules.

Answer:

Chloroplast

Explanation:

photosynthesis takes place in chloroplasts

How does a destructive force differ from a constructive force?

Answers

Answer:

Destructive Forces break down features on the Earth's surface. Constructive Forces build up features on the surface of the Earth.

What is the most important organism on the food web?

Provide a link to a resource if can.

Answers

The most important organism is the autotroph. They are the primary producers and they produce more energy needed for nutrition than any other organism

What evidence does not support the evolution of chloroplasts and mitochondria from prokaryotic cells? *
A. Fossilized remains of archaebacteria
B. Double membranes of the organelles
C. Similar methods of reproduction
D. Presence of circular DNA

Answers

Answer:

it is C.

Explanation:

C.

Answer:

C. Similar methods of reproduction

Explanation:

Which best explains the relationship between parent rock and soil composition? I will give the brainlest answer ​

Answers

Answer:

Weathered parent rock determines the number of organisms found in the soil. Weathered parent rock determines the amount of air found in the soil.

Explanation:

can i get brainliest

Mrs. Underwood explained to her class her theory that people do not understand the importance of timelines until they have lived through major historical events. Why is her theory different from a scientific theory?
A scientific theory concerns only physics and is supported by mathematical calculations,
O A scientific theory concerns nature and is supported by data collected through field observations and experiments.
A scientific theory concerns popular opinion and is supported by the opinions of researchers in the social sciences
A scientific theory concerns the humanities and is supported by interpretations of artistic works
роо

Answers

Answer: A scientific theory concerns nature and is supported by data collected through field observations and experiments.

Explanation:

Scientific theories are only established based on verified facts derived well organized research and experiments using data and other supporting evidences. Theories differ from hypothesis or philosophical sayings which lacks factual and reproducible evidences.

Mrs. Underwoods theory could best be deemed as an assertion because her theory lacks an established and reproducible evidence prepared from data or experimental research to back up or align with her theory.

A student proposes that the cell types shown here can be classified as to plant,animal,fungal,and bacterial. The student also proposes that an evolutionary relationship can be hypothesized based on the data. What evolutionary relationship and classification is best supported by the data

Answers

Answer:

Cell types I and III are animal and fungal cells, which are most closely related since they are eukaryotic cells that are heterotrophic.

Explanation: ¯\_(ツ)_/¯

Lactase is an enzyme that many different animals have that helps digest the sugar lactose Why can this enzyme be the same in different species?

0 Lactase is necessary for survival of all organisms

0 All living things share a common code-DNA

0 Lactase is not regulated by external environments.

It is not possible for it to be the same in different species

Answers

Answer:

All living things share a common code-DNA

Explanation:

Enzymes are proteinous substances, which like every other proteins are encoded by a genes. In the expression of these genes, a set of codons (three nucleotide base) called GENETIC CODE is used. ONE of the characteristics of this genetic code is that it is NEARLY UNIVERSAL meaning that the same genetic code is used by virtually all known living organism.

According to this question, lactase enzyme, which helps digest lactose sugar in organisms, is the same in different organisms. This is due to the fact that all living things share a common code-DNA e.g AUG codes for methionine in all organisms, hence, when these DNA undergoes expression, it yields the same products in different organisms.

Which has the greater volume?
A. wood
B. white block
C. equal
ws

Answers

Answer:

wood

Explanation:

Which of the following biomolecules is NOT correctly paired with its monomer (subunit)?

Answers

Answer:

I think its proteins..good luck

If no energy is transferred, how much work is done?

Answers

Answer:

Explanation:The potential energy is converted to kinetic energy in the process. But I see no transfer of energy between the earth and the body.

And how does energy transfer takes place in case of negative work ? When a body is moved across a surface which has friction, the friction does negative work. Does it mean that a sort of energy transfer occurs between the surface (source) and the body (object

PLSSSSS HELP

What are the three ways that minerals can form?

Answers

They are formed from the cooling and solidification of molten magma. that is the primary means of formation.

They could be precipitated out of solution.

They are also formed during metamorphism, under high temperature and pressure, minerals recrystalize and form new minerals.

hope this helps

brainliest?

5 star?

Answer:

1. igneous

2. sedimentary

3. metamorphic

Explanation:

what are four things that cause weathering

Answers

Answer:

Rain, flood, wind, sunlight

Explanation:

Answer:

Well four things are frost weathering, thermal stress, salt wedging, and Biological Weathering.

Explanation: There are a few more, but you only needed four.

WILL GIVE BRAINLIEST IF RIGHT !

Identify the 2 constructive processes from the list below.

A) A river wears away the land creating a canyon.

B) Over time a mountains top becomes less jagged and more rounded.

C) A volcano erupts and lava flows down its sides.

D) Silt is deposited at the mouth of a river.

Answers

Answer:

C, D.

Explanation:

C: The flowing lava creates extra rock. For example, entire islands are formed via this process of volcanos erupting, lava cooling, repeat.

D: Silt from erosion (erosion itself is considered destructive, but the resulting silt can turn into something constructive.) can build up entire mounds or mountains over time.

The 2 constructive processes are C and D

Choose the arrow that shows the direction H+ will diffuse.

Answers

Answer:

the answer would be the arrow that is pointing down.

Explanation:

Remember that molecules and ions will move to a place of lower concentration from a place of higher concentration.

Answer:

its the arrow pointing down

Explanation:

i did trhe gizmo

No question, just answers

What is the difference between a detritivore and a decomposer?

While detritivores feed on dead organic matter, decomposers actually break down dead or decaying organisms.

What is the main difference between food chains and food webs?

Food webs are more complex than simple food chains.

Taj incorrectly states that autotrophs are also known as consumers that need to feed on other organisms, including plants and animals, to gain energy. Which of the following best describes consumers that feed on other organisms such as plants and animals for energy?

heterotrophs

Which of the following is the first trophic level in every ecosystem?

autotroph

What is the relationship between matter and energy in an ecosystem?

Matter and energy are cycled through the ecosystem.

Answers

Well let me add on

A food chain shows the feeding between different trophies levels and a food web shows feeding in an interrelated food chain.

ASAP I NEED HELP I GIVE COINS!!
Based on the picture above, what habitat is this bird best adapted for?
Forest
Ocean
Marsh
Desert

Answers

Answer:

I would have to guess forest, as those claws look like they are for grabbing hold of branches, and the long beak usually means they eat worms.

When a sperm cell and egg cell join together what is it called?
1. sperm
2. Gamete
3. baby
4. Zygote

Answers

Answer:

4. Zygote is the answer

Answer:

Zygote

Explanation:

During fertialization a sperm cell and an egg cell come together to form a zygote.

Can someone please give me an explanation for Interphase and what happens in interphase?
I will mark brainliest
Please dont copy and paste

Answers

Answer:

In Interphase The cell grows in the (G1) phase, replicates DNA in the (S) phase

then prepares for mitosis in the (G2) phase. This all happens in Interphase. Hope this helps!

Explanation:

the process that are responsible for growth development and other vital functions​

Answers

Answer:

For one to form, there needs to be warm ocean water and moist, humid air in the region. When humid air is flowing upward at a zone of low pressure over warm ocean water, the water is released from the air as creating the clouds of the storm. As it rises, the air in a hurricane rotates.

Explanation:

I hope it's help

All of the following are symptoms of schizophrenia except __________. delusions disturbed emotions hallucinations adaptive behavior

Answers

Answer:

adaptive behavior is correct

Explanation:

just took the quiz

According to the question, the correct option is an adaptive behaviour.

Adaptive behaviours include real-life skills such as grooming, getting dressed, avoiding danger, safe food handling, following school rules, etc.

What does adaptive behaviour mean?

Adaptive behaviour is described as the group of conceptual, social, and practical skills retained by individuals to enable them to function in their everyday lives.

Adaptive behaviour is a required diagnostic measure of all systems defining intellectual and developmental disabilities.

Thus, adaptive behaviour is not a symptom.

To learn more about adaptive behaviour click here:

https://brainly.com/question/22909098

5. Macromolecules which are both hydrophobic and hydrophilic and are a major
component of cell membranes are -

Answers

Answer:

All phospholipids have hydrophobic tails, consisting of the two hydrocarbon chains, and hydrophilic head groups, consisting of the phosphate group and its polar attachments. Consequently, phospholipids are amphipathic molecules, part water-soluble and part water-insoluble.

Which of the following is NOT a trigger of coral bleaching? death of zooxanthellae whaling acidification increased water temperature

Answers

Answer:

Whaling

Explanation:

The rest have all proved to trigger coral bleaching.

Answer:

whaling

Explanation:

How could a rise of l m in the sea level directly affect humans?
A. Communities that depend on glacial run-off would face severe water shortages.
B. Residents of low-lying Islands in the Indian Ocean would be forced to abandon their homes.
C. Expansion of fertile floodplains along the Nile would make more land suitable for agriculture.
D. Residents along the U.S. east coast would become less vulnerable to storm surges and flooding.

Answers

The answer I would say is B

How would a bacteria explore a non-coding portion of DNA?​

Answers

Explanation:

Non-coding DNA sequences are components of an organism's DNA that do not encode protein sequences. Some non-coding DNA is transcribed into functional non-coding RNA molecules (e.g. transfer RNA, ribosomal RNA, and regulatory RNAs). Other functions of non-coding DNA include the transcriptional and translational regulation of protein-coding sequences, scaffold attachment regions, origins of DNA replication, centromeres and telomeres. Its RNA counterpart is non-coding RNA.

The amount of non-coding DNA varies greatly among species. Often, only a small percentage of the genome is responsible for coding proteins, but an increasing percentage is being shown to have regulatory functions. When there is much non-coding DNA, a large proportion appears to have no biological function, as predicted in the 1960s. Since that time, this non-functional portion has controversially been called "junk DNA".[1]

The international Encyclopedia of DNA Elements (ENCODE) project uncovered, by direct biochemical approaches, that at least 80% of human genomic DNA has biochemical activity, which they defined as being transcribed, a definition not shared with most other biologists.[2] Though this was not necessarily unexpected due to previous decades of research discovering many functional non-coding regions,[3][4] some scientists criticized the conclusion for conflating biochemical activity with biological function.[5][6][7][8][9] Estimates for the biologically functional fraction of the human genome based on comparative genomics range between 8 and 15%.[10][11][12] However, others have argued against relying solely on estimates from comparative genomics due to its limited scope.[citation needed] Non-coding DNA has been found to be involved in epigenetic activity and complex networks of genetic interactions and is being explored in evolutionary developmental biology.[4][11][13][14]

Which product is the result of light reactions in photosynthesis? O A. Water B. Glucose O c. Carbon dioxide OD. Oxygen ​

Answers

Answer:

D. Oxygen

Explanation:

Plants absorb carbon dioxide (CO2) and release oxygen for humans and animals to breathe in. Afterward, they'll release CO2 for plants to absorb, which forms a cycle.

Answer:

Oxygen

Explanation:

Both light dependent and light independent reactions in photosynthesis create glucose. But, only light dependent reactions convert carbon dioxide to oxygen.

Light independent: Carbon dioxide + water --> ATP and NADP(Energy/Glucose) and water

Light dependent: Carbon dioxide + water + light --> Glucose(ATP and NADP), water, and oxygen

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PLZZZ HELP ME OUT........................ PLZZ Whereas, with reference to said rebellion and treason,laws have been enacted by congress, declaring forfeituresand confiscation of property and liberation of slaves, allupon terms and conditions therein stated, and alsodeclaring that the President was thereby authorized atany time thereafter, by proclamation, to extend topersons who may have participated in the existingrebellion, in any state or part thereof, pardon andamnesty, with such exceptions and at such times and onsuch conditions as he may deem expedient for the publicwelfare...-Proclamation of Amnesty and Reconstruction,Abraham LincolnWhich statement best summarizes this excerpt?O Congress has given the president power toestablish the terms and conditions of a state's returnto the Union.O Anyone wanting to regain the status of US citizenmust be cleared of charges of treason and meetother conditions set by Congress.O Congress established the laws and punishments foracts of treason, but also gave the president thepower to pardon those guilty.States once in rebellion against the Union will bereturned to the full status of US states after meetingthe terms set by the president. 8Which economic system is represented by this idea?Resources are allocated by supply and demand.CapitalismCommunismSocialismCommunism and Socialism what is the rhyme scheme of the first stanza of robert frost's poem "fragmentary blue"A. ababB. aabbC. abbaD. baab A circle fits in a square with sides of 12 inches. What is the approximate area of the shaded region between the square and the circle? (Use 3.14 for Pi and round to the nearest whole number.)A. 31 in squaredB. 69 in squaredC. 106 in squaredD. 125 in squared I need help -Anwser I only have 10 minutes left Find the vertex of the parabola defined by the following equation. 3x^2-12x+11 Al Gore wanted a vote recount in four Florida countiesVolusia, Palm Beach, Broward, and Miami-Dade. What did these counties have in common?Map of the state of Florida showing the election results for each county. In the counties shaded red, Bush received most of the votes. In the counties shaded blue, Gore received most of the votes. In the northwest area of the state, the counties are primarily shaded red, with a few shaded blue near the state capital. In the northeast region of the state, most counties are shaded red. In central Florida, there is a mix of red and blue shaded counties. In the southwest region of the state most counties are shaded red. In the southeast region of the state, most counties are shaded blue. 2011 FLVS The counties had less than 20 percent of votes for the Democratic Party. The counties had less than 20 percent of votes for the Republican Party. The counties had high populations and more voters that chose Gore. The counties had low populations and more voters that chose Bush. Find the perimeter of this semi-circle with radius, r = 26cm.Give your answer as an expression in terms of ? Complete el parrafo con la forma correcta de los verbos entre parentesis en el preterite o el imperfect.Mientras ella ___ (dormir), los osos ___ (regresar) a la casa. ___ (descubrir) que alguien habia entrado en la casa. ___ (buscar) por toda la casa y ___ (encontrar) a Guerita. Los osos la ___ (comer), pero su carne ___ (ser) pudrida y los osos ___ (ponerse) enfermos. La casa no ___ (tener) bano, porque los osos siempre ___ (hacer) popo en el bosque. Los pobres osos ya no ___ (poder) comer carne de hamano porque ellos ___ (tener) malas memorias de lo que les ___ (pasar) cuando ellos ___ (comer) a Guerita. PLS HELPPLSSSSSSSSSSS Scottie is testing to see if people who go to a lot of movies do better than average on the Verbal SAT (which has a mean of 500 and a standard deviation of 100 and is normally distributed). She has a sample of six people. What kind of hypothesis testing do we use A particle with charge Q and mass M has instantaneous speed uy when it is at a position where the electric potential is V. At a later time, the particle has moved a distance R away to a position where the electric potential is V2 ) Which of the following equations can be used to find the speed uz of the particle at the new position? a. 1/2M(2^2-1^2)=Q (v1-v2)b. 1/2M(2^2-1^2)^2=Q(v1-v2)c. 1/2M2^2=Qv1d. 1/2M2^2=1/4x0 (Q^2/R) A car enters a 105-m radius flat curve on a rainy day when the coefficient of static friction between its tires and the road is 0.4. What isthe maximum speed which the car can travel around the curve without sliding An investigator reviewed the medical records of 200 children seen for care at Boston Medical Center in the past year who were between ages of 8 and 12 years old and identified 40 with asthma. He also identified 40 children of the same age who were free of asthma. Each child and his or her family were interviewed to assess whether there might be an association between exposure to second-hand smoke and asthma. Classify this study as a This the last question The chart in the text Power from Nature is titled U.S. Energy Use from 19492010. What kind of information can you expect in this chart? A. dialogue B. opinions C. facts D. stories Refer to Explorations in Literature for a complete version of this speech.Which evidence from The American Promise is sufficient to prove Lyndon B. Johnsons argument that we must fight to ensure that all Americans have the right to vote?"The Constitution says that no person shall be kept from voting because of his race or his colorWe must now act in obedience to that oath.""For the fact is that the only way to pass these barriers is to show a white skin.""For with a country as with a person, 'What is a man profited, if he shall gain the whole world, and lose his own soul?'""Somehow you never forget what poverty and hatred can do when you see its scars on the hopeful face of a young child." 1.How do you know you have a direct variation in therelationship between two quantities? Jeremy walked at an average rate of speed of 5 km/h. how far had Jeremy walked in 15 minutes?