A BISC 220 student went swimming at the Uytengsu Aquatics Center. Having missed an important lecture on the respiratory system, he thought it would be a good idea to hyperventilate for a minute before diving into the pool and swimming vigorously underwater. Shortly after he began swimming, he lost consciousness and would have drowned if not for the quick action of the lifeguard. Which one of the following best describes what happened?
A. Hyperventilation increased the Poz in his blood, which inhibited the brainstem respiratory center.
B. Hyperventilation decreased blood Pco2, which reduced respiratory drive at the same time that exercise increased the demand for O2
C. Skeletal muscle activity caused an increase in blood pH, which suppressed brain function and made him faint.
D. Hyperventilation increased the saturation of hemoglobin with O2, but vigorous exercise caused the bound O2 to be replaced by CO2

Answers

Answer 1

Answer:

B. Hyperventilation decreased blood Pco2, which reduced respiratory drive at the same time that exercise increased the demand for O2.

Explanation:

Hyperventilation is a breathing at an abnormal rate. There is an increased rate of loss of carbon dioxide which causes an increased demand for the oxygen. The respiration process is affected due to hyperventilation.


Related Questions

Which specific subdivision of the nervous system calms the body after strenuous physical activity?
O A. autonomic nervous system
O B. somatic nervous system
OC. parasympathetic nervous system
CO D. sympathetic nervous system

Answers

Answer:

C. Parasympathetic nervous system.

Explanation:

The parasympathetic nervous system calms the body after strenuous physical activity.

Hope this helps!

Compare and contrast disorganized schizophrenia and paranoid schizophrenia.

Answers

Answer:

The paranoid subtype is characterized by the presence of hallucinations and delusions. In the disorganized one appears a behavioral disorganization and of the thought and language as well as an inappropriate affect. These patients tend to have an earlier onset, a worse prognosis, and a greater number of neurocognitive alterations.

Explanation:

Paranoid schizophrenics are characterized by sharp delusions, especially persecution ideas of grandeur, often with a corresponding aggressive reaction in response to the alleged persecution. There may be hallucinations of various kinds, to which patients react consecutively, but later, as deterioration occurs, apathy and indifference appear. Hallucinations are common. On the other hand, disorganized schizophrenia is another form of schizophrenia that is characterized by disorganization of speech, that is, the language is rambling and incoherent, the behavior is unpredictable, inappropriate and incongruous.

Answer:

The paranoid subtype is characterized by the presence of hallucinations and delusions. In the disorganized one appears a behavioral disorganization and of the thought and language as well as an inappropriate affect. These patients tend to have an earlier onset, a worse prognosis, and a greater number of neurocognitive alterations.

Explanation:

answer credit: genewho

24. all of the following are function of sER Except ?

A. Synthesis of lipid

B. Carbohydrate Metabolism

C. Detoxification of drug and poisons

D. Modification of protein​

Answers

Answer:

D

Explanation:

The organelle that modifies proteins is the golgi body.

D
It’s d I hav done it before

explain the importance of capacity to living organisms​

Answers

We need space to breath

IF A RED BIRD EATS IN A SPACE OF 500 FT AND A BLUE BIRD HUNTS WITHIN THIS 500 FT, BUT ONLY IN A SQUARE OF 100FT, WHAT MIGHT HAPPEN TO THE BLUE BIRDS POPULATION. IF THE RED BIRD EATS THE BERRIES IN THE 100FT SPACE.

Answers

Answer: They will die

Explanation: they will have no food to eat to keep them alive

What is the purpose of hardening?
To eliminate all disease
To manage the population of endangered trees
To allow nursery plants to transition to the outdoors
To make sure that the trunk of the tree is as strong as possible before planting

Answers

Answer: To allow nursery plants to transition to the outdoors.

Explanation:

Hardening is a process in which the small seedling plants are exposed to the unprotected environment of the garden so that they develop some tolerance against those conditions. The small seedlings were earlier exposed to low water, sunlight, and wind conditions but for hardening they are kept at those areas of the garden where they experience harsh levels of these agents for a short duration and the duration is increased with routine so that plants can adapt the changes when they are planted outdoor or outside the care of garden. It is one of the gardening practices.  

Question 10 of 10
Which of these is a cost of desalination technology?
O A. New supply of fresh drinking water
B. Thousands of suitable locations worldwide
O C. Inexhaustible supply of ocean water
D. Enormous energy requirements

Answers

Answer:

maybe it could be C?

Explanation:

i dont know why?

1. Based on the examples in the table, how do opinions differ from facts?

2. How do facts differ from theories?


3. Although they're different, what relationship exists between facts and theories?


4. What do all the theories in the table have in common?

5. How do laws differ from theories?

6. If someone told you that plate tectonics is just a theory and that it hasn't been accepted as a law yet, how would this
information conflict with what you understand about theories and laws?

Answers

1. Opinions are not always right; facts are.

2. Theories are sometimes right, but sometimes they are either wrong or a little off; facts are on point and with the exact answer.

3.  A theory is a scientific explanation of a fact.

4. They all have a good amount of information; also they say approximately to let you know it's not the exact answer.

5. A law is more like a prediction of what will happen if the situation is given and it's shown by the mathematical equation; Theory describes what happens. (Happened).

6. This would try to go against my understanding but it won't happen because I know that theories don't become laws or vice-versa; theories remain theories and law remain laws.

Which of the following is an example of erosion?

Answers

Answer:

A

Explanation:

I think A is the example of erosion

When parents reproduce, they pass different versions of genes, or _____, for different traits to their ____.

Answers

Answer:

characters

offsprings.

Explanation:

During meiosis, all various genes are separated. The inherited alleles constitute the genotype of the individual.

The transfer of parental to offspring characteristics is called heredity and the heritable features can be predicted.

Which of the following descriptions correctly defines gametes

Skin cells

Sex sales or sperm and egg cells

The diploid cell that comes from the fertilization of an egg cell by sperm cells

All of the above

Answers

Answer:

Sex sales or sperm and egg cells

Explanation:

T Lymphocytes can bind proteins in their native form.

True or false

Answers

I think it’s True cus yeah
Answer:
True

Explanation

An example of an average, main sequence star would be —

Answers

Answer:

Our Sun is an example of a main sequence star.

Explanation:

A group of students decide to have a fishbowl in their classroom. They put the following things in it:

Seaweed that grows on the bottom.
Fish that eat the seaweed.
Bacteria that eat the waste created by the fish.

In this ecosystem, what are the bacteria?

Answers

The bacteria are the Decomposers.

1.
If a person gets a stab wound to the chest cavity where the lungs are located, how
would this affect the person's ability to breathe? Why?
2. Explain how a build-up of mucus in the bronchi can affect your daily activities.
3. Explain how a problem in your respiratory system can affect your circulatory
system

Answers

Answer:stop use brainly for cheat n go do your own work

Explanation:

Which of the following mutations could lead to constitutive expression of the genes of the lac operon? View Available Hint(s) Which of the following mutations could lead to constitutive expression of the genes of the lac operon? A mutation in the lac-Z gene A mutation in the lac-Y gene A mutation in the operator sequence A super repressor mutation Submit Part B Which of the following best describes the biological role of the lac operon? View Available Hint(s) Which of the following best describes the biological role of the lac operon? It ensures that bacterial cells produce lactose only when no other food sources are available. It ensures that a cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment. It ensures that a cell produces enzymes involved in lactose metabolism in a constitutive manner. It prevents other sugars from being metabolized until all available lactose has been used. Submit Part C The placement of the operator sequence between the promotor and the structural genes is critical to the proper function of the lac operon. View Available Hint(s) The placement of the operator sequence between the promotor and the structural genes is critical to the proper function of the lac operon. True False

Answers

Options for part A are as follows:

A) A mutation in the operator sequence

B) A mutation in the lac-Z gene

C) A mutation in the lac-Y gene

D) A super repressor mutation

Answer:

The correct answer:

Part a - A mutation in the operator sequence

Part b - It ensures that a cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment

Part C. true.

Explanation:

part a:

If there is a mutation in the operator sequence leads to prevent binding of the repressor which leads to allowing constitutive expression of the genes various conditions.

part b:

The biological role of the lac operon makes sure that the cell dedicates resources to the production of enzymes involved in lactose metabolism only when lactose is available in the environment

Part c:

RNA polymerase cannot transcribe the structural genes due to the repressor binds to the lac operator, therefore, the proper function of the lac operon is possible when the placement of the operator sequence between the promotor and the structural genes.

Which of the following does NOT occur during interphase?

1.each chromosome replicates

2.the nucleus disappears

3.microtubules extend from centrosomes

4.centrosomes are duplicated​

Answers

Answer:

The nucleus disappears

Explanation:

The nucleus does not disappear in interphase but instead, the cell grows and splits to make another duplicate of the cell. Which means the cell will also split to make another duplicate nucleus.

Which of the following best describes an environmental advantage of urbanization?
А
Individuals living in cities have more varied employment opportunities than individuals living in rural areas.
B
Individuals living in cities have greater access to health care than individuals living in rural areas.
с
Individuals living in cities usually have greater access to fresh, local agricultural products than individuals living in rural areas.
D
Individuals living in cities usually have a lower transportation carbon footprint than individuals living in rural areas.

Answers

D
Answer: A I am sure of Ik
Wallahi it will be so cool

Individuals living in cities have more varied employment opportunities than

individuals living in rural areas is an environmental advantage of

urbanization.

Urbanization involves the increase in the industrialization thereby leading

to the increase in population to the area. Cities usually have a higher

degree of urbanization due to presence of various industries and access to

the best facilities.

The increase in industries during urbanization makes varied employment

opportunities present and an advantage over the rural areas.

Read more on https://brainly.com/question/2277541

Match the statements on the left to the choices on the right.
Increase transcription of a gene. [ Choose ]
DNA binding protein [ Choose ]
Block the promoter region of a gene. [ Choose ]
Found associated with the gene encoding HCl production in a skin cell. [ Choose ]
Found associated with the genes encoding hemoglobin in a red blood cell [ Choose ]

Answers

Answer:

Increase transcription of a gene - Activator

DNA binding protein - Ribosome

Block the promoter region of a gene - Repressor

Found associated with the gene encoding HCI production in a skin cell - mRNA

Found associated with the genes encoding hemoglobin in a red blood cell - mRNA

Explanation:

Hemoglobin is an iron containing compound present in red blood cells which carries oxygen in the body. mRNA molecule contains exon coding for two proteins. mRNA molecule becomes associated with four to six ribosomes.

The statements on the left are correctly matched with the choices given on the right are:

Increase the transcription of a gene -------- Activator.DNA binding protein ------ Ribosome, Polymerases.Block the promoter region of a gene ------ Repressor. Found associated with the gene encoding HCl production in a skin cell -------- mRNAs.Found associated with the genes encoding hemoglobin in a red blood cell -------- mRNAs.

What do you mean by a Gene?

A gene is a basic unit of heredity and a sequence of nucleotides in DNA that encodes the synthesis of a gene product, either RNA or protein.

An activator is known to increase the transcription of a gene, while a repressor binds to the promoter region and inhibits the transcription process. The molecules of mRNA get associated with the gene HBA, HBB which encodes for hemoglobin in red blood cells. Ribosomes and polymerases are known for DNA binding protein.

Therefore, above are all the statements on the left that are correctly matched with the choices given on the right.

To learn more about the Transcription process, refer to the link:

https://brainly.com/question/1048150

Which of the following is not a
testable hypothesis that this data
could be used to support or
disprove?
F. Height is affected by child-
hood nutrition.
G. All females are taller than
males at age 12.
H. Being taller is always better
than being shorter.
I. All men who are married are
taller than their wives.

Answers

H, obviously that’s not a scientific answer

Which type of plant lives the longest?
a.annual
b.biennial
c.perennial
d.none of the above

Answers

Answer:

c. perennial

Explanation:

A silver maple oak tree is an example of a perennial as it can live hundreds of years

What do memory B and T cells do when they encounter a pathogen for the second time?​

Answers

Answer: When B cells and T cells are first activated by a pathogen, memory B-cells and T- cells develop.

Throughout the lifetime of an animal these memory cells will “remember” each specific pathogen encountered, and are able to mount a strong response if the pathogen is detected again. This type of immunity is both active and adaptive.

Active immunity often involves both the cell-mediated and humoral aspects of immunity as well as input from the innate immune system.

Explanation: Hope it Helps

When b cells and T cells are first activated by a pathogen ,memory b cells and T cells develop

Which organism obtains energy without directly depending on another organism

Answers

The organism that obtains energy without directly depending on another organism is a PLANT.

PLANTS are organisms which are capable of manufacturing their own food  through the process of photosynthesis.

Photosynthesis is defined as the process by which plants use low energy containing inorganic compounds (example carbondioxide and water) in the presence of sunlight, as energy, to produce high energy organic compounds such as sugar. These sugar are used as source of energy in the plant cells.

While animals are the organisms that directly depend on plants( another organism)

Therefore, the organism that obtains energy without directly depending on another organism is a PLANT.

Learn more about plants  here:

https://brainly.com/question/18265947

What are are used to build enzymes

Answers

Answer:

they are made from amino acids

Enzymes are made from amino acids, and they are proteins. When an enzyme is formed, it is made by stringing together between 100 and 1,000 amino acids in a very specific and unique order. The chain of amino acids then folds into a unique shape.

Do internet search enhance our knowledge in animal/fish raising?

Answers

Answer:

Yes it does because it helps us to be aware on the things that we should know on how to raise the animals with care,.

Explanation:

What effect does planting trees and bushes on a steep hill have?



A- It makes the hill a good habitat for animals.

B- It provides oxygen to the soil.

C- Over time, it will help the hill grow taller.

D- It helps stop erosion.

Answers

Answer:

D- It helps stop erosion.

Explanation:

Erosion can be defined as a geological process which typically involves the wearing out of earthen (soil) materials and the transportation of these materials by natural forces like water, wind, etc. Soil erosion is greatest when the soil is steep.

The steepness of a body such as river or stream refers to the downward slope or gradient of the body of water.

Generally, the steepness of a body affects the rate at which other materials would flow or move around. Thus, the steeper a river or stream, the greater would be its rate of erosion. Other factors that affect the rate of erosion in an area include the following; farm management, rainfall, climate, soil type, soil cover, landscape, type of wave, crops, rock strength and position of coast.

In order to mitigate or stop the rate of erosion in an environment, trees and bushes should be planted on a steep hill because they will obstruct the free flow of water, as well as absorbing it.

An animal that forms a social attachment to its mother shortly after birth demonstrates which learned behavior?
a.
Insight
c.
Imprinting
b.
Habituation
d.
Trial-and-error

Answers

the answer is c hope this helps

Which of the following statements is true?
Earth's atmosphere helps it maintain a constant temperature.
Condensation is the process by which water changes from a liquid into a gas.
Plants do not perform respiration.
Animals add water to the atmosphere through photosynthesis.

Answers

Earth's atmosphere helps maintain a constant temperature.

Answer:

hello there your answer is A:Earth's atmosphere helps it maintain a constant temperature.

Explanation:

please mark other guy as brainllest.

have a nice day

[o]-[o]

\___/

What adaptation helps the pine tree reduce water loss?

leaves
thorns
Seeds in cones
Woody stems

Answers

Answer:

leaves

Explanation:

The needles of pines, like those of other conifers, are well-adapted for growth in dry environments. In particular, the outer surface of pine needles has a thick waxy layer, called a cuticle, which reduces evaporative water loss.

Answer: Option (A) leaves

Explanation:

Pine trees thankfully have needles, which are thin, waxy leaves that enable them to make food year-round. The waxiness of the needles helps evergreens not lose water to evaporation.

Hope it helps! Good luck!!!

the cytoplasmic extensions that, together with the cell body, provide the main receptive surfaces for neurons are the:

a: axons
b: soma
c: dendrites
d: synapses

Answers

I’m pretty sure it’s dendrites
:)
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