During normal breathing, what is the usual stimulus for a person to take a breath?

a. a decrease in pH of the cerebrospinal fluid

b. stimulation by norepinephrine

c. PCO2 in the blood drops below 40 mmHg

d. PO2 in the blood drops below 100 mmHg

Answers

Answer 1

Answer:

a

Explanation:


Related Questions

Help please <3 Thank you

Answers

Answer:

The answer is C

:::::::::::::::::::

Which of the following human impacts on natural habitats are TRUE? Check all that apply.

Answers

This is very easy but all of the above

The Earth rotates counterclockwise on its axis. Because of this, in which direction does the Moon appear to move across the sky?

A. from north to south

B. from south to north

C. from west to east

D. from east to west

Answers

Answer:

East To West

Explanation:

A 52-year-old woman has difficulty initiating voluntary movements. She can clearly state what she intends to do, describe exactly how she would do it, and picture herself doing it easily. When she is able to begin the motion, she can complete it smoothly and accurately, but she has difficulty beginning the motion. If the difficulty arises from a defect in one particular area of the nervous system, which area is most likely to be involved

Answers

Answer:

Basal Ganglia

Explanation:

The Basal ganglia function is to regulate the voluntary movements or autonomic movement. This is done by receiving and transmission of impulses. Impulses are received for upcoming movement from the cerebral cortex and then process and adjust from where it is convey to the thalamus which then relays this information back to the cortex. The well defined movement instruction is finally sent to the skeletal muscles through the tracts of the pyramidal motor system. It also function in planning and modulation of movement, memory and eye movement.

There are five types of basal ganglia corpus striatum, claustrum, amygdala, substantia nigra and subthalamic sails which all function together.

Which of the following would cause the greatest reduction of wildfires?
A decrease in lightning storms
An increase in rainfall
A decrease in average wind speed
Preventing people from visiting wildfire-prone areas

Answers

☁️ Answer ☁️

D: Preventing people from visiting wildfire-prone areas.

Hope it helps.

Have a nice day noona/hyung.

Which of the following is not a line of evolutionary evidence supported by empirical evidence?
a. How similar DNA is between organisms
b. The length of the organism’s life
c. Where fossils are found
d. How similar the organisms were as embryos

Answers

Answer:c where fossils are found

Explanation:

Where fossils are found  is not a line of evolutionary evidence supported by empirical evidence. Therefore, option C is correct.

What are fossils ?

Any surviving remains, impression, or evidence of a once-living thing from a previous geological epoch is referred to as a fossil. Examples include exoskeletons, bones, shells, animal or microbe imprints in stone, items preserved in amber, hair, petrified wood, and DNA traces. The fossil record is the collection of all fossils.

Shells, bones, animal or microbe imprints in stone, exoskeletons, items preserved in amber, petrified wood, coal, hair, oil, and DNA traces are a few examples of fossils.

The majority of fossils are created when a living thing (such as an animal or plant) dies and is swiftly buried by sediment (such as mud, sand or volcanic ash).

Thus, option C is correct.

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26 POINTS!!!!!!!! | Which statement best describes trait distribution?

A.) Distribution describes how the variation in traits is spread across a population.

B.) Distribution describes the different traits that are found in a population.

C.) Distribution describes how individuals in a population are spread across their habitat.

D.) Distribution describes the different traits that are found in a species.

Answers

Answer: I think its b not sure though

Explanation:

have a great day :)

The statement which best describes trait distribution is: B. Distribution describes the different traits that are found in a population.

What is a trait?

A trait can be defined as a distinguishing quality, feature or characteristic that is possessed by a living organism and it differentiates from other species of organisms.

Generally, a trait is commonly transferred from the parent of a living organism to her offspring, so as to distinguish him or her from others.

The examples of traits:

In Genetics, some examples of traits include the following:

Colorblindness Curly hairHeight Complexion

On a related note, a trait distribution refers to different traits that are possessed by a living organism found in a population.

In conclusion, trait distribution is described as different traits that are found in a population.

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How might change in one population affect other populations?

Answers

The food chain will mess up.

Which components make up the cardiovascular system?
lungs, heart, and blood vessels
heart, blood vessers, and blood
heart, blood, and lungs
lungs, heart, and skin

Answers

Answer:

heart blood vessels and blood

Answer:

Heart, blood vessels, and blood

Explanation:

The heart pumps blood around the body, the blood vessels transport the blood, and the blood is the blood itself

Use the image below to answer items a and b.
The cells in this image of the microscope's field of view are most likely from a(n) ?

Α - bacterium
B - plant
C - protist
D - fungus

Answers

Answer:

A

Explanation:

i go with A is that okay?

huh

Clown fish live in the waving tentacles of sea anemones in the ocean. The sea
anemone provides a safe place for the clown fish to escape predators. The sea
anemone, although it has poisonus tentacles, does not bother the clown fish and is
not harmed by the clown fish. This relationship between organisms can be described
as-

a- commensalism
b- mutualism
c- parasitism
d- predation

Answers

Answer:

d i thank?

Explanation:

A population of 250 birds inhabit the canopy of tropical rainforest that has a caring capacity of 400 birds. What is the maximum population growth if a population grows 283 in one year

Answers

Answer:

Explanation:

0.35

The maximum population growth if the population grows 283 in one year is : 13.2%

Maximum population growth is the percentage change in the size of the population of a habitat in a given year.

Caring capacity = 400 birds

Initial population at the start of the year = 250 birds

Number of birds added = 283 birds

population growth rate =  ( 283 - 250 ) / 250  * 100

                                       = 0.132 * 100 = 13.2 %

Hence the maximum population growth rate if the population grows 283 in one year is 13.2%

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According to Darwin, an organism that is very successful at living and reproducing has a high level of: A). Genetic Equilibrium B). Altruistic Ability C). Fitness D). Hormones

Answers

Answer:

Hormones because without hormones there will no living humans on the world because two people having intercourse together they can make another human being

According to Darwin, an organism that is very successful at living and reproducing has a high level of: A). Genetic Equilibrium B). Altruistic Ability C). Fitness D). Hormones

(10 points)
The diagrams below show some changes in an
environment over time.
(A)
(B)
(C)
Which phrase best describes this sequence of
diagrams?
(1) the path of energy through a food web in a
natural community
(2) the altering of an ecosystem by a natural
disaster
(3) natural communities replacing each other in
an orderly sequence
(4) similarities between an aquatic ecosystem
and a terrestrial ecosystem
(D)
r

Answers

Answer:

The correct answer is - (3) natural communities replacing each other in an orderly sequence

Explanation:

In this diagram, there is ecological succession occurred, the process of the new natural community over the older natural community in an orderly sequences.

In this case, there are change from an aquatic ecosystem to new land ecosystem by changing various biotc and abiotic factors. The ecosystem go through various changes and physical changes.


a) Which of the three types of organisms (multicellular, unicellular and colonial) would have
been the earliest form of life?

Answers

Answer:

unicellular...lemme know if am right

Why is ecology important?

Answers

Ecology enriches our world and is crucial for human wellbeing and prosperity. It provides new knowledge of the interdependence between people and nature that is vital for food production, maintaining clean air and water, and sustaining biodiversity in a changing climate.

estimate how many calories a
person burns from physical activity.

Answers

Answer:

For men: 66 + (6.2 x weight) + (12.7 x height) – (6.76 x age)

For women: 655.1 + (4.35 x weight) + (4.7 x height) – (4.7 x age)

Explanation:

GIVING BRAINLIEST!!!!

Name the types of adaptation that animals and plants can have

Answers

Answer:

poison, thorns, sharp teeth

Explanation:

Which of the following could be a function of a phagocyte?
Choose 1 answer:
A. Acting as a physical barrier against pathogens
B. Activating B cells
C. Engulfing a foreign pathogen
D. Making antibodies specific to a pathogen

Answers

D. Producir anticuerpos específicos para un patógeno

The following could be a function of a phagocyte, Making antibodies specific to a pathogen.

What is chemotaxis?

The process of attracting the phagocytes to the site of injury is known as chemotaxis.

The chemotaxis is a part of the inflammatory response of the body. The phagocytes once attracted to the site of the injury ingests the bacteria by attaching to the bacterial cell wall.

The ingestion of the invading bacteria is known as phagocytosis. The destroyed bacteria is then released from the phagocytes.

Thus, option D is correct, Making antibodies specific to a pathogen.

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The diagram shows the same type of molecules in area A and area B.

With the passage of time, some molecules move from area A to area B. This movement is the result ot the process of

1. phagocytosis
2. pinocytosis
3. diffusion
4. cyclosis​

Answers

Answer:

3. diffusion, because molecules are moving from a high concentration(A) to a low concentration(B)

Diffusion is the net flow of matter from a location of high concentration to a region of low concentration as a result of the random mobility of molecules. Both stopping and reversing this process are not possible. Thus, option C is correct.

What are the main mechanism in diffusion process?

The molecules' kinetic energy causes random motion, which causes diffusion. This mechanism happens in simple diffusion without the help of a carrier protein.

The molecules travel from an area of high concentration to an area of low concentration due to their random mobility.

Chemicals flow across the plasma membrane from areas of high concentration to areas of low concentration in cells to maintain an equilibrium (balance) of internal substances.

This implies that if there are more items inside the cell than outside, they will go outside and vice versa. It happens when the medium around the cell contains more water than the cell itself.

Therefore, This movement is the result of the process of diffusion.

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1.1.1 A young woman stepped on a dirty, rusty nail. The following diagrams
show bacteria isolated from the wound and a range of antibodies that
were already present in her body. The antibodies have a specific shape that
binds with the antigen found on the surface of the bacteria
N
P
bacteria
antibodies
The bacterium most likely to cause a severe infection is ...
A M
B. N
C.O
D. P​

Answers

Answer:

M

Explanation:

HOPE IT HELPS :)

Creating RNA from DNA

Answers

Cells make RNA messages in a process similar to the replication of DNA. The DNA strands are pulled apart in the location of the gene to be transcribed, and enzymes create the messenger RNA from the sequence of DNA bases using the base pairing rules. 3. RNA molecules made in a cell are used in a variety of ways.

that's some cool stuffffp

Tell me more about the parts of the water cycle and how they work.

Answers

Answer:

QUESTION:

Tell me more about the parts of the water cycle and how they work.

ANSWER:

The water cycle consists of three major processes: evaporation, condensation, and precipitation. ... In the water cycle, liquid water (in the ocean, lakes, or rivers) evaporates and becomes water vapor. Water vapor surrounds us, as an important part of the air we breathe. Water vapor is also an important greenhouse gas.

Explanation:

Hope that this helps you out! :)  

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Where are the best geothermal resources located in the U.S?
A. West Coast
B. East Coast
C. South
D. Midwest

help me help me help me help me help me please please ​

Answers

the west coast

Explanation:

yeah it mostly likely that

What is the force of a 3 kg skateboard accelerating at a rate of 4m/s2? Plug in the numbers: Force = mass x acceleration

Answers

Here is the answer:
Mass= 3kg
Acceleration =4m/s
Putting the formula:
F=m*s
F=3*4
F=12N( Newton is the S.l unit of force)

During one year, seven coyotes in a population die. Eight immigrate into the population, but none emigrate. If the overall population growth is 13 coyotes, what was the birth rate of coyotes during the year? Use this formula: population growth = (birth rate + immigration) – (death rate + emigration) 7 11 12 15

Answers

Answer:

Death rate= 7 coyotes

Immigration= 8

Emigration= 0

Population growth= 13

Let’s suppose that the birth rate for the given population is x.

Population growth = (birth rate+immigration) - (death rate+emigration)

13=(x+8)-(7+0)

13=x+1

Move the variable to the left side and change its sign.

-x+13=1

Move the constant to the right side and change its sign

-x=1-13

-x=-12

x=12

Answer: x=12

Explanation:

edge2021

Answer:

Death rate= 7 coyotes

Immigration= 8

Emigration= 0

Population growth= 13

Let’s suppose that the birth rate for the given population is x.

Population growth = (birth rate+immigration) - (death rate+emigration)

13=(x+8)-(7+0)

13=x+1

Move the variable to the left side and change its sign.

-x+13=1

Move the constant to the right side and change its sign

-x=1-13

-x=-12

x=12

Answer: x=12

Explanation:

edge 2021

What causes the change from day to night and vice versa?

A. The orbit of the sun around Earth.
B. The moon's rotation around Earth
C. The rotation of Earth on its axis.
D. The orbit of Earth around the sun

Answers

Answer:

c? if u stand infront a light and spin, the opposite side to the light would be dark?

C,the rotation of earth on its axis

DNA undergoes ____to produce_____.RNA undergoes____to produce_____

Answers

I am not really sure but you can get the answer from it :

They discovered a fundamental mechanism of how proteins protect chromosomes while DNA is being copied (a process called DNA replication), which relies on a protein called RPA. Cells have a limited amount of this protein, which they use as 'band aids' to protect the DNA temporarily during replication.

Describe the process of photosynthesis, in your own words.

Answers

Answer:

Photosynthesis is process by which green plants manufacture their food by making use of carbon dioxide and water in the presence of sunlight

I Now Give Up On Life :) Don't Try And Stop Me

Answers

Wdym you give up...

hii, NEVER GIVE UP. <3
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Past Tense GrammarPractice regular past tense (preterite) conjugations of -ar, -er, and -ir verbs. Complete the following sentences using the correct conjugation of the verb given in parentheses. It may help to review the tutorial, A Visit to the Art Museum. Type the correct answer in each box. Spell all words correctly.Example: l naci en Santiago, Chile. (nacer)Ella muchas pinturas. (pintar)Nosotros en Mxico tres aos. (vivir)T en los Estados Unidos? (nacer)Yo un retrato de mi perro. (pintar)Ellos arte muy interesante. (inventar) Match each number with its opposite Which detail best conveys the central idea of paragraph 4? Insects and seeds travel on birds that migrate or flee from storms.BThe great frigate bird has an impressive, two-meter wingspan.CBerry seeds often drop into cracks and crevices and start to root.DBirds can loosen seeds and snails when they preen their feathers. How are photosynthesis and cellular respiration connected as a cycle? 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These kids are so little that it's hard for drivers to see them in the back of the bus. Plus, they should be sitting with kids their own age and not older students. In my opinion, kindergarten and first-grade students should all be required to sit near the front of the bus.A. School bus passengers should be more considerate of younger kids by helping them get on and off with their backpacks. B. When kindergarten and first- grade students ride the school bus, they should sit with their siblings.C. School bus drivers should require the youngest passengers to sit at the front of the bus.D. School bus drivers have a hard time saying small children who sit near the back of the bus. Cual es el lugar fisico donde se desarrolla la accin del cuento Las medias de flamenco A. Delusional Disorder B. Schizoaffective Disorder C. Schizophrenia D. Brief Psychotic Disorder E. Substance Use Disorder F. Borderline Personality Disorder G. Schizoid Personality Disorder H. 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