The pressure would be changed to 4 atm in the machine to bring 500 ml of air into the lungs.
What is pressure and what is breathing and why the pressure is brought up to 4 atm?Breathing is a biological phenomena , biological practice to inhale the air and exhale CO2 through lungs.In the process the inhalation lasts for 3 sec and exhalation for 3.5 seconds of time.Pressure is the quantity representing the force per unit area of the region in a considered time.To design a machine bringing 500 ml of the air into the lungs, initially it was at 100 ml of air at 2 atm .Hence the pressure would be changed to 4 atm in the machine to bring 500 ml of air into the lungs.To know more about breathing visit:
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A patient with and O blood type can receive a transfusion from a donor with blood type ____ only.a) ABb) Oc) AB, A, or Od) AB, A, B, or Oe) AB, A, or B
Blood types are determined by the proteins present on the surface of the red blood cells.
• In blood type A, red cells have A antigens and there are anti-B antibodies in the plasma.
,• Blood type B has B antigens and anti-A anitbodies
,• Blood type AB has A and B antigens and no antibodies
,• Blood type O, has ,no antigens ,and ,both anti-A and anti-B antibodies.
Is important not to pair antigens and antibodies, as the antibodies of the recipient will attack the antigens.
For example, if a person with O blood type receives AB blood, the patient's anti-A and anti-B antibodies would attack the donor's blood because the red cells have A and B antigens.
This means that a person with O blood type can only receive blood type O because those red cells don't have any antigens on their surface (option b).
The density of gold is 19, 320 kg/m³ and the density of
mercury is 13, 500 kg/m³. If a cube of gold that measures
0.100 m on each side is placed in a tank of mercury and
weighed while under the surface, what is the apparent weight
of the cube?
The apparent weight of the submerged gold is 57N.
What is apparent weight?According to physics, an object's perceived weight is a characteristic that describes how heavy it is. When the force of gravity acting on an object is not counterbalanced by a force of equal but opposite normality, the apparent weight of the object will differ from the actual weight of the thing.The weight of a passenger on an elevator is one illustration. When the elevator starts to rise, the object starts to apply downward force. If a scale were used, it would be clear that the downward force is making the object heavier and changing its apparent weight.So, the weight of mercury is 13500kg/m³ × (0.1m)³ = 13.5kg = 132.3N.
The initial weight of gold is 19320kg/m³ × (0.1m)³ = 19.35kg = 189.3N.
Then, the apparent weight of submerged gold is:189.3N - 132.3N = 57NTherefore, the apparent weight of the submerged gold is 57N.
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I need help on this question. This is a non graded quiz. Thank you.
The dominant allele is T (it is always represented with the uppercase letter) and it codes for tall. This type of allele masks the effect of another allele.
The recessive allele t (it is represented with a lowercase letter) codes for short. This type off allele has its effect masked by a dominant allele.
When we look at the Punnett square we can see the offspring possible combinations:
TT: 25%
Tt: 50%
tt: 25%
The TT combination results in a tall offspring as the T allele is dominant.
The Tt combination results in tall offspring as T allele is dominant against t allele.
The tt combination results in short as both alleles ar ressesive and code for short.
As a result a 75% of the offspring will be tall and 25% will be short.
The answer is, 25%
The dominant allele is T (it is always represented with the uppercase letter) and it codes for tall. This type of allele masks the effect of another allele.
The recessive allele t (it is represented with a lowercase letter) codes for short. This type off allele has its effect masked by a dominant allele.
When we look at the Punnett square we can see the offspring possible combinations:
TT: 25%
Tt: 50%
tt: 25%
The TT combination results in a tall offspring as the T allele is dominant.
The Tt combination results in tall offspring as T allele is dominant against t allele.
The tt combination results in short as both alleles ar ressesive and code for short.
As a result a 75% of the offspring will be tall and 25% will be short.
The answer is, 25%
Properties of Matter Unit Test
7 of 117 of 11 Items
Question
Which of the following statements is true?(1 point)
Responses
The density of water is 1 gram per milliliter, so objects with a relative density of 1 milliliter per gram will float.
The density of water is 1 gram per milliliter, so objects with a relative density of 1 milliliter per gram will float.
The density of water is 1 gram per milliliter, so objects with a relative density greater than 1 gram per milliliter will float.
The density of water is 1 gram per milliliter, so objects with a relative density greater than 1 gram per milliliter will float.
The density of water is 1 gram per milliliter, so objects with a relative density greater than 1 gram per milliliter will sink.
The density of water is 1 gram per milliliter, so objects with a relative density greater than 1 gram per milliliter will sink.
The density of water is 1 gram per milliliter, so objects with a relative density less than 1 gram per liter will sink.
The statement that is true is as follows: the density of water is 1 gram per milliliter, so objects with a relative density greater than 1 gram per milliliter will sink (option C).
What is density?Density is the measure of the mass of matter contained by a unit volume. The density of a liquid substance is a determinant of whether the substance will float or sink in water.
Water is a liquid substance with a density of 1 gram per millilitres (1 g/mL). This suggests that any substance with greater density than that of water will sink while any substance with lesser density than water will float.
Density is a measure of how heavy something is compared to its size, hence, if an object is more dense than water it will sink when placed in water, and if it is less dense than water it will float.
Therefore, according to this question, objects with a relative density greater than 1 gram per milliliter will sink.
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when have you used skills of observation, experimentation, modeling? Describe and example of how you have used this skill
Observation is the act of carefully watching something over time.
Experimentation Scientists may perform experiments in the lab or in the field. lab experiment gives the researcher more control, the artificial setting does not reflect the complex interactions that occur in nature.
Field experiment, on the other hand, gives a more accurate picture of how organisms interact in a natural setting.
Modeling scientists use computer and mathematical models to describe and model nature. example, It is possible for some people to learn and adapt to completely new computer systems at work, while others have adjusted to the challenges of working remotely.
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What’s the correct answer answer asap for brainlist
Answer: B
Explanation:
What is a scientific term that means rising crust?
The scientific term for rising crust is uplifting.
Uplifting is the sudden appearance of the land or rocks that were buried deep down inside, to the earth's surface. This may happen due to some upward force from the inside. Uplifting may also happen due to some activity in the tectonic plates.
Crust is the outermost layer of the Earth. It is the thinnest layer that goes only 40 km deep. The crust is composed of solid rocks and minerals. The rocks include sandstone, limestone, igneous and metamorphic. And the minerals are oxygen, silicon, aluminum, iron, etc. The crust also exhibits buoyancy.
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Identify the type of neuron that carry information from the sense organs such as the tongue, nose, skin, ears, and eyes to the spinal cord and the brain so that the stimuli received from these organs can be processedSensory neuron Interneurons Motor neuron
In order to connect stimulus perceived (which is done by the sensory neurons) with thecore nervous centers, a connector is required, this gap is filled by the interneurons. Interneurons are aimed to connect sensory data from the input (sensory organs) to the organs where this info is processed.
Looking at your data, which color light was needed the most by chlorophyll during photosynthesis? (Hint: which color light was absorbed the most in your experiment?) Question 9 options:redbluegreen
Chlorophyl absorbs the light at both endpoints of the visual expectrum, which means that ir absorbs the light of the blue and red wavelenghts.
The red wavelength is absorved on a higher rate than the blue wavelength.
DIFFRENCE BETWEEN PERMANENT TISSUE AND MERISMETIC TISSUE
Thankuu~
Answer: Meristimetic tissue continues to divide and help the growth of a plant. Permanent tissue consists of plant cells that no longer divide.
Explanation: Trust me.
Meristematic tissue
The tissues (group of cells) which undergoes repeated cell division. At the tip of the plant, there is apical meristem. Those tissue helps the plant to grow longer. If the apical meristem is cuts accidentally, then the plant no longer grow and dies.
Permanent tissue
The tissues (group of cells) which does not undergo repeated cell division. The middle portion of the plant cells is permanent tissue.
Overall the plant growth depends on the apical meristematic cells.
DEFINE INTERCALARY MERISTEM
A basic meristematic structure called an intercalary meristem contains cells that can divide and aid in the growth of the plant. They are situated at the internode bases.
What does intercalary mean?placed inside a calendar. a day of intercalation. containing an intercalary period (such as a day or month) of a year; interpolated; inserted between other things or sections.
What is the intercalary meristem's other name?As a result, the intercalary meristem in grasses is frequently called the grass meristem.
Are where intercalary meristems to be found?The meristems found at the base of an internode's stem or leaf are known as intercalary meristems.
It aids in the lengthening and expansion of plants' nodes and internodes (stems and leaves), as well as their longitudinal growth (grasses).
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Does the signal go to the spinal cord and turn around and come back out the spinal cord or does it go up to the brain to get processed before it comes back down?
The nerves in the body send signals along their pathway to the spinal cord, then to the brain. Once the signals reach your brain, your body registers the sensation, and you are able to feel it. Sensory signals travel so fast that it seems like you get the message instantaneously.
Taylor has recently suffered brain damage which has affected her thinking, planning, decision-making, language, and motor movement. Which lobe of Taylor's brain was likely damaged?A.frontal lobeB. parietal lobeC. occipital lobeD. temporal lobe
The answer is A. Frontal lobe. It is mainly involved in decision-making and movement.
The other options are incorrect because:
The occipital lobe is responsible for visual information.
The temporal lobe helps process auditory information.
The parietal lobe is basically involved with sensory processes, and attention.
In a respiration experiment we are measuring the rate alcoholic Fermentation in yeast by measuring the amount of CO2 produced Please assist with following questions
Answer and explanation:
1. sources of error- in the experiment, the amount of carbon dioxide released by east is monitored, a source of error could be the carbon dioxide present in the atmosphere which would interfere with the results.
2. baking recipes add sugars and molasses to provide carbohydrates for the yeast. this acts as a source of energy for the fermentation process.
3. the respiration of yeast could be monitored by measured the amount of sugar used or by measuring the amount of ethanol produced in the respiration process
4. high concentrations of sugar my inhibit yeast activity most likely because of the high osmotic concentration which prevents yeast from getting enough water for growth. as the osmotic concentration increases a yeast cell will reach a pont where water moves out of the cell.
HELP!!!!
Which conditions are necessary for snow to form?
a) The temperature of the air in the cloud is above freezing.
b) The temperature of the air below the cloud is above freezing.
c) The temperatures of the cloud and the air below the cloud are at or below freezing.
d) The temperature of the cloud is below freezing, while the air below the cloud is above freezing.
Answer:
im pretty sure its c but this is what i found on the web: the atmospheric temperature is at or below freezing (0°C or 32°F).
Explanation:
Answer:
im pretty sure its c but this is what i found on the web: the atmospheric temperature is at or below freezing (0°C or 32°F).
Explanation:
The "waxy coat" present on some of the leaves of the Canadian Buttercups serves what purpose?A. To make it slippery to insectsB. To prevent the stomata from openingC. To allow water to slide off the petalD. To protect it from extreme temperatures
The waxy coat on plant's leaves serves to retain water. It is composed of cutin, a wax-like material produced by the plant which is chemically a hydroxy fatty acid.
C.
You work with the Environmental Protection Agency and are attempting todetermine hazard levels for the insurance company. Which of the followingindividuals has the lowest risk of getting cancer?A. Someone taking hormone therapyB. A smokerC. Someone infected with HPVD. Someone getting heart bypass surgery
The individual with the lowest risk of getting cancer is someone getting a heart bypass surgery. Even though surgeries have riks, cancer is not one of them, and the rest of the conditions (HPV, hormone therapy and smoking) are fact
Which of the following decreases the life expectancy of a population?I. High infant mortalityII. Poor sanitationIII. Adequate healthcare
The correct answer is II. Poor sanitation. This increases transmission of infectious disease which harms life expectancy. In the worst cases it creates epidemics that decimate populations, like black death in the eighteen century.
Describe the structure and function of the skin
The skin is the largest organ of the human body. It has three layers: epidermis, dermis, and hypodermis.
The epidermis is the outermost layer. It is composed of keratinocytes, a type of epithelial cell that produces keratin. The compact nature of the epithelial cells of the epidermis makes the skin waterproof. Melanocytes are also found in this layer and produce melanin, or skin pigment. The epidermis function as protection against UV rays.
The dermis is the inner thicker layer that is mostly composed of connective tissue and connected to the epidermis by collagen fibers. The structures found in this layer are the hair follicle, hair root, sebaceous gland, and sweat gland. The dermis function is to excrete excess oils and waste out of the body through the production of sweat and production of vitamin D with specialized cells found in this skin layer.
The hypodermis is the innermost layer that is composed of adipose tissue. It functions as a cushion between the muscles and the skin.
What are transposable elements and what is their significance?
Transposable elements are DNA sequences, genes. With the capacity to move inside the genome, that is to say, they can change their position in the genome by themselves. Due to this ability to change position, they have been widely studied, although many times insert themselves on inactive genomic regions, they have contributed to genetic diversity and generating polymorphisms, which in turn have an impact on the evolution. Also in a low percentage of cases can generate genetic illnesses in early embryonal states, like some ehemofilias or leukemias.
Particulates are a form of air pollution usually produced byA. eutrophicationB. the combustion of fossil fuelsC. production of ChlorofluorocarbonsD. acid rain
Particulates are produced by cars, trucks, florest fires, factories, etc. Any sources from the comb ustion of fossil fuels. Therefore, the correct answer is B. the combustion of fossil fuels
If a city
were a model for a cell,
would wastewater be more
likely part of endocytosis or
exocytosis? Explain.
If a city were a model for a cell, would wastewater be more likely part of endocytosis.
Briefing:The process of engulfing an object or particle with the cell membrane and bringing it inside the cell is known as endocytosis. The membrane completely encloses the substance by folding it over.
What is an endocytosis ?Endocytosis is the process by which cells take in foreign material by encasing it in their membrane. The two primary kinds of endocytosis are ocytosis and receptor-mediated endocytosis.
What is endocytosis transport?Endocytosis is a term that refers to a variety of active transport processes that carry particles into cells by encasing it in vesicles made of plasma membranes (endo = internal, cytosis = transport mechanism).
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Of the following, which may be classified as supportive connective tissue?
a. bone
b. adipose tissue
c. dense regular connective tissue
d. dense irregular connective tissue
Answer: A. Bone tissue.
Explanation: Trust me.
is neurofibromatosis 1 a dominant or recessive trait?
Neurofibromatosis 1 has an autosomal dominant inheritance pattern.
Unlike other types of autosomal dominant conditions, for which one copy of the dominant gene is enough to express the trait/ sickness, for this condition the individual should carry both dominant alleles to trigger the formation of the tumors.
I need help with this practice problem solving My questions for you are at the top
Hi. We just had a session with this same question is there any doubt left?
A small group of foxes moved to a new environment, starting a new population.They began with a population of 10 foxes, and over the course of 2 years expandinto a population of 40. The population increased rapidly, but now food starts tobecome harder to find, and much of the living space is occupied. The populationstill grows, but at a decreased rate. Which part of the growth phase is thispopulation currently in?A. ExponentialB. LagC. TransitionalD. Plateau
When we are looking at a population we can see that passes through different stages, generally, there is a beginning or lag phase, then comes an accelerated gro also known as exponential or log phase, until the population stabilizes and reaches the ecosystem charge capacity, this is also known as stationary or plateau phase, therefore we can say that the correct answer is option D.
When we are looking at a population we can see that passes through different stages, generally, there is a beginning or lag phase, then comes an accelerated gro also known as exponential or log phase, until the population stabilizes and reaches the ecosystem charge capacity, this is also known as stationary or plateau phase, therefore we can say that the correct answer is option D.
why is it important to swim with a friend even if there is a life gaurd on duty.
Answer:
because u can be drowned till the life guard on duty comes
Can someone help with this ? Thank you if you can actually help
Answer:
a
Explanation:
Since both the liver and skeletal muscle can store glucose as glycogen, both organs can break down the glycogen into free glucose to release into the blood.
a. true
b. false
Since glucose is required for muscle contractions, a proper glucose metabolism is crucial for optimal health.
What different role of glucose in liver and skeletal muscle?When the muscle contracts, the GLUT4 glucose transporter moves glucose from intracellular storage depots to the plasma membrane and T-tubules, allowing it to enter the muscle cell.
A little quantity of glucose is kept in the brain, but the majority of it is kept as glycogen in the liver and skeletal muscles.
Exercise-induced muscle contraction boosts glucose absorption in skeletal muscle in addition to insulin stimulation. The facilitative GLUT4 is redistributed from intracellular storage vesicles in response to both stimuli.
Therefore, it is false that both the liver and skeletal muscle can store glucose as glycogen.
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Which of these is not a function of some membrane proteins A keeping polar molecules out of a cell B receiving messages from other cells C recognizing other types of cells D Catalyzing chemical reactions in the cell
Membrane proteins are those structures that are joint to the membrane of the cell, which allows it to have communication between its inside and its outside, but they have a limited size, and because of that, they keep great polar molecules outside the cell, also receive messages from neighboring cells, and recognize other types of cells, but they are not involved in the catalyzation of chemical reactions in the cells, since their function is mainly allow the movement of molecules from inside to outside or vice versa, and, as we've seen, also the communication between other cells.
So the answer to this question is D. Catalyzing chemical reactions in the cell, what they don't do.
