Hey can someone please help will mark brainliest
A mechanical ventilator in a hospital is designed to assist in breathing. It will deliver oxygen-
carbon dioxide balanced air to the patient at a prescribed rate. Why is carbon dioxide included in
this mixture?
of
Select one:
O a. Carbon dioxide stimulates the medulla oblongata in the brain.
O b. Pure oxygen causes the formation of nitrogen bubbles in the blood.
O c. Pure oxygen cannot be absorbed by the lungs unless diluted with other gases.
O d. Carbon dioxide is necessary to reduce the breathing rate of the patient.
Answers
Answer:
C
Explanation:
Because pure oxygen cannot be absorbed by the lungs unless diluted or adding extra oxygen to it .
Related Questions
TRUE or FALSE? The development of homes
and building can threaten Wetland
ecosystems since water is required to
cleared.
A) False
B) True
Answers
Answer:
True
hope you have a great day!
what human activities can redistribute carbon loads in the cycle so that global warming might slow down or decrease choose two different real world examples and explain the flux in carbon loads that would result from an increase in that human activity. make sure to explain what biological physical or geological process would shift the carbon load from one point in the cycle to another.
Answers
Answer:
Reducing the use of fossil fuels in vehicles.
Explanation:
Reducing the use of fossil fuels in vehicles and use of electric vehicles which reduces air pollution as a result decrease or slow down of global warming occur. Use of fossil fuels is the main reason for increasing carbon concentration in the environment. If more plants were planted around the world the high concentration of carbon decreases in the environment due t photosynthesis of plants. Avoid use of activities that increases the carbon concentration in the environment.
Does each square on a "punnet square" represent 4 offspring or does it represent the odds of one offspring?
Answers
Answer:
Explanation:
Punnet square is a square diagram used to predict the genotypes of the offspring of a particular cross or breeding experiment.
It represent 4 offsprings of the cross between two parents. Each punnet contain the alleles in the right combination and proportion.
Punnet square is use to determine the percentages of different genotypes present in the offspring of two parents and to determine missing alleles in a cross.
it can also be used to predict the percentages of phenotypes in the offspring usually from a parents with known genotypes.
In the term isotonic, the prefix iso- means
A. Above
B. Equal
C. Below
D. Pressure
Answers
Answer:
Iso stands for equal......
How did God distinguish humans from animals?
Answers
2. The most important difference is our brain is much better than that of an animals.
3. Animals hunt with god given traits like claws and fangs, humans create their own weapons to hunt.
prokaryotic cells have a single circular chromosome and a defined nucleus? true or false?
Answers
Answer:
False, it lacks a defined nucleus.
Explanation: By definition, prokaryotes lack a membrane-bound nucleus to hold their chromosomes. Prokaryotes generally have a single circular chromosome that occupies a region of the cytoplasm called a nucleoid. They also may contain small rings of double-stranded extra-chromosomal DNA called plasmids.
Answer:
False
Explanation:
Prokaryotic cells don't have a nucleus, they have a nucleoid region
Need answer ASAP please thanks
Answers
Answer:
rr
Explanation:
you're welcome--------
Using this chart of word roots and affixes, which is the most likely meaning of
the word tripod?
Prefixes
Sumixes
mono: one
bi: two
tri: three
omni: all
pro: for, in favor of
forward
epi: on, outside
se: apart
athlon, prize, contest -able, -ible capable of
ped, pod, foot -ic: like, related to
phon, phone: sound -oid. resembling
spect to look
-ant, having the qualities of
derma: skin
-ia: condition, world, society
hydr. water
-ology, -logy, the study of
cred, to believe, trust -ous: full of
tone: tone, sound
-ence: a state or condition
A. An animal that walks on four legs
B. A three-legged stand
C. A three-part belief system
D. The ability to walk on hind legs
Answers
Answer:
THE ANSWER IS LETTER B
Explanation:
Answer:
B
Explanation:
IF YOU WANT POINTS HERE YOU ARE!!! ANSWER THE QUESTIONS IN THE PICTURE!!!!
Answers
Answer:
13- can't see the question
14- 75%i think
15- the likelihood is 25%
16-Bb and bb
Explanation:
pictures below, hope this helps :)
Which statement best describes the process of crossing over? (1 point)
A.Homologous chromosomes pair up, and non-sister chromatids exchange genetic material.
B. Pairs of homologous chromatids are divided in half and distributed randomly into new diploid cells.
C.Homologous chromatids pair up, and non-sister chromosomes exchange genetic material.
D.Pairs of homologous chromosomes are divided in half and distributed randomly into new haploid cells.
Which cell replicates via meiosis?
A.sperm cell
B. red blood cell
C. heart cell
D.skin cell
Answers
Answer: process in genetics by which the two chromosomes of a homologous pair exchange equal segments with each other
Explanation: sperm cells
CROSSING OVER:
Crossing over is a unique process that occurs only during meiotic division. Crossing over, also called recombination, occurs during prophase I of meiosis. Crossing over is the process by which non-sister chromatids of homologous chromosomes (a pair of similar but non-identical chromosomes from each parent). Crossing over ensures genetic diversity in the gametes (daughter cells) produced from meiosis:MEIOSIS:
Meiosis is the type of cellular division employed by sexual reproducing organisms to create sex cells or gametes. Meiosis produces four genetically different daughter cells called gametes. Sperm cells are gametes produced by male organism while egg cells are gametes produced by female organisms.Learn more: https://brainly.com/question/18824252?referrer=searchResults
Which organism is an example of a club fungus?
Answers
Answer:
Mushroom is an example of club fungus
Explanation:
hope it helps, have a great day!
Explanation:
the division of fungi known as the club fungi, basidiomycota. mushroom, puffballs, and shelf fungi are all members of the group, as are the plants rust and smuts. hope it helps
Where am I? I am a very large part of the World. Very few trees grow here. Eight countries have land here. I never get warmer than 50 degrees Fahrenheit or 10 degrees Celsius in the summer. Certain lights are viewed best from here. I have my own ocean. I also have my own circle. Where am ?
Answers
Answer:
north pole area
Explanation:
1. The north pole (very northern canada greenland and russia) is a big part of the world, but it's growing smaller
2. It's all mostly ice, so barely any trees
3. SUPER cold there, so it doesn't get warmer than 50 f or 10 c
5. The north pole area's ocean is called the Arctic Ocean
6. the aurora lights, or the Northern lights happen there too.
When you look at your teacher's face, how can you see it?
0 Light reflects off of her face.
O Her face emanates light.
O Light refracțš through her face
O Her face emits electromagnetic radiation.
Answers
Answer:
0 Light reflects off of her face.
What would happen if earth had no atmosphere
Answers
Answer:
solar radiation would break atmospheric water into oxygen, which would react with carbon on the Earth to form carbon dioxide. The air would still be too thin to breathe. The lack of atmosphere would chill the Earth's surface. ... Plants and land animals would die
Explanation: rewrite it
The energy of ultraviolet and shorter wave lengths of light is absorbed by interaction with the molecules in the atmosphere.
Explanation:
If there were no molecules in the atmosphere the high energy waves from the sun would strike the surface of the earth. The result would be that perhaps no living thing could survive.
Ozone and other molecules absorb the energy from the sun and undergo chemical reactions due to the energy absorbed.
How are humans circulatory system similar and different to other animals
Answers
Answer:
Humans have a heart with two atria and two ventricles that pushes blood in one direction. Some animals have hearts similar to humans but, other animals have only one atrium and one ventricle or a cardiovascular system that can push blood in two directions.
Humans circulatory system is similar due to presence of artrium and ventricles and different to other animals due to number of heart chambers.
How human circulatory system similar and different to other animals?Humans have a heart with two atria and two ventricles that prevents bactward flow of blood. Some animals have hearts similar to humans but, other animals have only one atrium and one ventricle that can push blood in two directions.
So we can conclude that Humans circulatory system is similar due to presence of artrium and ventricles and different to other animals due to number of heart chambers.
Learn more about circulatory system here: https://brainly.com/question/2107209
how does it make you feel to know you have likely eaten a genetically modified food?
Answers
Answer:
Feels kinda weird knowing that we are eating not organic food but modified. Tastes a bit different.
Explanation:
Explain the theory of evolution
please
Answers
As a consequence those individuals most suited to their environment survive and, given enough time, the species will gradually evolve.
Answer:
Explanation:
evolution is fueled by something called natural sellectoin to explain this lets say a species of birds move to an island where there are more seeds the ones that are able to eat will survive and reproduce and they will reproduce most times they will overproduce so there is a higher chance of surviving and there bodys will slowly change like the mucles will become stronger along with the beak that is baisicly evolution but this does take millions of years this not a few years and they change this is s extremly slow change.
Mutation please help.
Answers
Answer: i dont know how to do this
Explanation:
please please please please please help me
Answers
Answer:
i think it is the third option
Explanation:
hope this helped
(sorry if this is wrong.)
The total momentum of the system will remain the same. The momentum and energy is transferred from the first ball into the other one, but none is lost.
Please mark Brainliest! :)
Which of the following are resources that individuals of different species
might compete for in an ecosystem? Check all that apply.
Answers
Answer:
I don't know what the options are but some of the following could be what organisms compete for.
- Food
- Water
- Territory
PLEASE HELP!!!!!! 100 POINTS!! Lab: Absorption and Radiation by Land and Water
Now that the lab is complete, it is time to write your lab report. The purpose of this guide is to help you write a clear and concise report that summarizes the lab you have just completed.
The lab report is composed of three sections:
Section I: Experimental Overview
o Provide background information.
o Include the hypothesis.
o Summarize the procedure.
Section II: Data and Analysis
o Include graphs to display trends in the data.
o Identify trends in the data.
Section III: Conclusions
o Identify if the hypothesis was supported or refuted.
o Provide logical reasoning based on data.
o Explain how the experiment could be improved.
To help you write your lab report, you will first answer the eight questions listed below based on the experiment that you have just completed. Then you will use the answers to these questions to write the lab report that you will turn in to your teacher.
You can upload your completed report with the upload tool in formats such as OpenOffice.org, Microsoft Word, or PDF. Alternatively, your teacher may ask you to turn in a paper copy of your report or use a web-based writing tool.
Questions
Section I: Experimental Overview
1. What is the purpose of the lab?
2. What is your hypothesis for this experiment?
3. What methods are you using to test this hypothesis?
Outline the steps of the procedure in full sentences.
Section II: Data and Analysis
4. What graphs would clearly represent the trends in your data?
Your Student Guide includes information on which graphs to construct. Each graph should have the following items:
a. An appropriate title
b. Appropriate labels for each axis
c. An appropriate scale for each axis
d. The correct units for the data
Complete a rough sketch of each graph.
5. What do the data in your graphs tell you?
Explain in one or two sentences what trend is shown in each of your graphs.
Section III: Conclusions
6. What do the data tell you about your hypothesis?
State how your hypothesis is either supported OR refuted by the data.
7. How do the data support your claim above?
Explain your statement above. Be sure to refer to specific pieces of data from your experiment that support your argument.
8. If you could repeat the experiment and make it better, what would you do differently and why?
There are always ways that experiments can be improved. Now that you are a veteran of this experiment and have experience with the procedure, offer some advice to the next scientist about what you suggest and why.
Answers
Answer:
First read the student guide to understand everything that will occur in this lab. Second read the safety guideline to ensure no one is harmed during this lab. Then gather your materials for the lab. After that section off your grass into 32 sections. Choose a quadrant and make some observations. Then choose a random sample area in your quadrant to estimate how many individual pieces of grass are present. Next, fid the average height of thegrass. Then, compare the data to quadrant #18. Plant your seeds. Count how many blades of grass are in your random sample area, and then calculate the estimated number of blades in your quadrant. Find the average height of the grass. Compare your data once again to quadrant #18, which is in the control group. Record the height of all the plants and calculate the average height for each type of plant. Compare this data with the data from quadrant # 18. Combine the data from all quadrants, and then compare the data from the experimental group to the control group. Make sure you record all your data.
Explanation:
The way by which HIV can be spread is contact with mucus, infected blood, and contaminated water. Thus, option C is correct.
Who does not need a circulatory system?A single-celled organism that doesn't required the circulatory system as human do. Since they are the singular, they can interact with their environment directly. Oxygen need to be supplied by the circulatory system and some of the cells also well differentiated so it can be only accept a certain processed food.
Most mollusks, or except for the some particular cephalopos like skids, have an open circulatory system in which the circulating fluid has been called hemolymph that flows through the body thanks to the muscle contractions that pump this fluid into the hemolymph vessel that discharges this fluid into the body cavity allowing substances and gases to be exchanges between body cells and the carrying hemolymph. Then this fluid goes back to the blood vessel and reinitiates the circulation.
Therefore, Thus, option C is correct.
Learn more about hemolymph on:
https://brainly.com/question/887512
#SPJ3
How many chromosomes foes the nucleus of heart muscle cell contain?
Answers
Answer:
46 chromosomes
Humans have 23 pairs of chromosomes, so our hearts have 46 chromosomes.
Explanation:
Hope it helps
Answer:
46 chromosomes
most of them contain 46 chromosomes like almost all the rest of the body's cells
What happens to most of the sunlight
energy that reaches the earth?
Answers
Answer: In explanation
Explanation:
Once the sun's energy reaches earth, it is intercepted first by the atmosphere. A small part of the sun's energy is directly absorbed, particularly by certain gases such as ozone and water vapor. Some of the sun's energy is reflected back to space by clouds and the earth's surface.
Explanation:
Once the sun's energy reaches earth, it is intercepted first by the atmosphere. A small part of the sun's energy is directly absorbed, particularly by certain gases such as ozone and water vapor.
What types of pollutants can interfere
with the health of Wetland Ecosystems?
A) All of the above are threats to Wetlands.
B) Petroleum products such as motor oil.
C) Pesticides.
D) Nitrogen & Phosphorus fertilizer.
Answers
Motor oil is very harmful and toxic
Pesticides are bad for the animals and plants
Phosphorus fertilizer is also bad in high amounts that go into wetlands
Mosses, liverworts, and hornworts all have ______ reproductive characteristics?
embryonic style
asexual offspring
alteration of generation
Answers
Answer:
i think its alteration of generation
Explanation:
i studied this but i have loss of memory
A copy a chromosome made during cell division are called
Answers
Answer:
As a cell prepares to divide, it must make a copy of each of its chromosomes. The two copies of a chromosome are called sister chromatids.
Match each term with its best definition.
Plutons, Sills, Injection, D*kes
Check the comments for the answer.
Answers
Answer:
hey u blocked me pliz unblock me yer
Explanation:
Answer:
across existing rock.
How many different keys can be used in a single sort?
Answers
Answer:
The answer is 3.
Explanation:
Hope this helped Mark BRAINLEST!!!
Tokyo will hold the olmics in 2020.into passive
Answers
Answer:
the Olympics in 2020 will be held by Tokyo .
Answer:
Change it to passive: Tokyo will hold the Olympics in 2020. You can't change it because it is an intransitive verb. ... The Olympics are being held in Tokyo en 2020
Explanation:
Imagine a genetic cross between two people, blood type AB. What is the probability that these people will have offspring with type B blood? A) 0% B) 10% o 25% D) 50%
Answers
(random letters) shavisgausbasibs