Answer:
C
Explanation:
In biology, homeostasis is the state of steady internal, physical, and chemical conditions maintained by living systems. This is the condition of optimal functioning for the organism and includes many variables, such as body temperature and fluid balance, being kept within certain pre-set limits.
Antigen is a term that refers to proteins that are found on the plasma membrane which determine the blood type
of erythrocytes.
O True
O False
The sentence that describes antigen as "proteins that are found on the plasma membrane which determine the blood type of erythrocytes" is: False.
What is an Antigen?An antigen is a substance that when introduced into the body evokes an immune system response. They activate the white blood cells by making them fight against any invading disease in the human body.
So, the description of antigens above is false.
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trying to turn this in. Could use the help ASAP!❤️
1.) Which statement correctly describes the relationship between the volume of a gas and it’s temperature, in Kelvin, assuming pressure is held constant?
A.) The relationship is directly proportional; as temperature increases, volume decreases in the same way.
B.) The relationship is inversely proportional,
As temperature increases, volume decreases in the same way.
C.) The relationship is directly proportional, as temperature increases, volume increases in the same way.
D.) The relationship is inversely proportional, as temperature increases, volume increases in the same way.
2.) which statement explains the molecular changes that occur in an enclosed gas as the pressure increases and the temperature is held constant
A.) an increase in pressure causes particles to move farther apart, decreasing the volume
B.) an increase in pressure causes particles to move farther apart, increasing the volume
C.) an increase in pressure causes particles move closer together, decreasing the volume.
D.) an increase in pressure causes particles to move closer together, increasing the volume.
3.) The ideal gas law is represented by PV = nRT. as volume is held constant and the temperature increases, how would the pressure be expected to change
A.) it will remain constant.
B.) it would decrease.
C.) it would increase
D.) it would become zero
4.) when the pressure of gas decreases, which quantity will increase, assuming all other variables are held constant?
A.) R
B.) n
C.) T
D.) V
5.) two balloons hold two different gases. The gases are held at the same pressure, volume, and temperature. Which quality can difference between the two gases?
A.) The molar volume of each gas
B.) The mass of each gas.
C.) The gas constant of each gas.
D.) The number of moles of each gas
Answer:
1. The relationship is directly proportional; as temperature increases, volume increases in the same way.
2. An increase in pressure causes particles to move closer together, decreasing the volume.
3. It would increase.
4. V
5. The mass of each gas.
Just took it
Remember that the equation for the ideal gas is:
P*V = n*R*T
Where:
P = pressure
V = volume
n = number of moles
R = constant of the ideal gases.
T = temperature.
1) If the pressure is held constant (we also assume n is constant, because usually, the number of moles does not change).
Then we can write
V = (n*R/P)*T
and (n*R/P) is a constant.
Then the above relation is a proportional relation.
So the correct option is C: The relationship is directly proportional, as temperature increases, volume increases in the same way.
2) If the pressure increases and the temperature is held constant, then the equation:
V = (n*R/P)*T
can be used.
Now the temperature is constant, so we can write this as
V = (n*R*T)/P
Where now (n*R*T) is a constant.
So now we have an inversely proportional relation, when P increases, the volume should decreases. And a decrease in volume happens because the molecules move closer together, so the correct option is C:
"an increase in pressure causes particles move closer together, decreasing the volume."
3) Now the volume is constant, then we can write:
P = (n*R/V)*T
Exact same thing as in the first case, this is a proportional relation, so if the temperature increases, also does the pressure.
The correct option is C again.
4) If the pressure decreases then temperature also decreases, as we saw above.
And as the temperature decreases, the volume increases, as we saw in point (2), then the correct option is D, i the pressure decreases, the volume increases.
5) We have two different gases with the same values of T, V, and P.
By the equation:
P*V = n*R*T
And knowing that R is a constant, we can see that n should also be the same value for both gases.
Then the molar volume of each gas, V/n, is also the same.
Finally, the only thing that can be different in the gases is the thing that does not appear in the equation, and that is density/mass. So we can conclude that the gasses have different masses (thus different density, as they have the same volume)
Then the correct option is B; the mass of each gas.
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define lack of basic services
Most substances we encounter in daily life are? A pure or B molecules
Answer:
Examples of pure substances include tin, sulfur, diamond, water, pure sugar (sucrose), table salt (sodium chloride) and baking soda (sodium bicarbonate). Crystals, in general, are pure substances. Tin, sulfur, and diamond are examples of pure substances that are chemical elements.
who proposed five kindome classification?
Answer:
Robert Whittaker
Explanation:
Robert Whittaker's five-kingdom system was a standard feature of biology textbooks during the last two decades of the twentieth century.
Answer:
Robert Whittaker's proposed five Kingdom of classification
I NEED HELP ASAP. please im going to fail
Answer:
B
Explanation:
It should be B, to be specific it is the adhesive forces that help
If an incision cuts the body into anterior and posterior parts, the body is cut into a
plane.
O Coronal
O Sagittal
O Transverse
O Deep
Anyone know the answer? I'm a little stuck
Answer:
The answers should be in the link that they gave you. There is a reason it's there in the first place. try to study that first cause it definitely has the answers to your questions and steps that's required
what is the vision and mission statement of the organization?
Answer: Please refer to:
A Mission Statement defines the company's business, its objectives and its approach to reach those objectives. A Vision Statement describes the desired future position of the company. Elements of Mission and Vision Statements are often combined to provide a statement of the company's purposes, goals and values.
Explanation:
Not sure but hope it helps.
which kingdom contains animals?
Answer:
animal
kingdom i am sure
Q: Explain why a coalition might be more effective at the local level than at the national level. Give
at least THREE reasons.
Coalition might be more effective at the local level than the national level because the people at the local level usually share same culture and have a common goal.
Coalition is a group that is formed by people or factions who partner and work towards a common goal. The main aim of coalition is to bring about a particular change.Coalition might be more effective at the local level than at the national level because the people at the local level usually share common goal. Also, the people at the local level usually share a common culture unlike the national level when different cultures are being considered.In conclusion, people at the local level also understands themselves better which helps in an effective coalition.
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Which of the Galilean moons of Jupiter is covered with ice and might have liquid water below the ice?
A lo
B. Callisto
C. Europa
D. Ganymede
Answer:
Europa
Explanation:
There are 4 Galilean moons and Europa is the smallest. Scientists believe that there is ocean below the sheet of ice.
the anammox reaction of the nitrogen cycle occurs in water true or false
Answer:
False
Explanation:
In the ocean, an anammox reaction returns nitrogen to the atmosphere. The reaction involves certain bacteria, and it converts ammonium and nitrite ions to nitrogen gas.
Lactose is a disaccharide that is digested into glucose and galactose.
Glucose and galactose are? (choose one)
A. Monosaccharides
B. Proteins
C. Lipids
1)
Which of the following are considered part of the environment?
A. forests
B. people
C. buildings
o
D. all of these
I will give branliest and 15 points
4. Find out mismatched pair.
I) Lavoisier - Oxygen
2) Joseph Black - Hydrogen
3) Priestley - Belljar
Answer:
........................
I need help with this y’all .
7. Sarah experimented with 100 betta fish. She wanted to know if increased temperatures affected
food consumption. She divided them into two groups of 50 fish each: Group A and Group B. Group
A was maintained at room temperature (20 degrees Celsius). The temperature of Group B was
raised to 40 degrees Celsius. Which group was the control group?
a. There was no control group
b. All betta fish were in the control group
e. Group A
d. Group B
Answer:
i think it is B
Answer:
There was no control group.
Explanation
In this problem, there are two temperatures given (20 degrees Celsius and 40 degrees Celsius). The problem then states that Group A and Group B are going to be set to their separate temperatures. The problem wants you to think that the constant here is Group A, because they state that the temperature is being maintained at room temp. Because we don't know the temperature of the room or fish tanks beforehand, we have no idea if the tanks were different temperatures then they are now. Because we have no data to compare to the tanks, we have no control group in this problem. Be careful to read through these problems and don't let the wording of the problem confuse you. By using words such as 'maintained' and 'raised to', the problem makes you think that Group A is the control. Just because Group A is being maintained at room temperature doesn't mean it wasn't room temperature before the experiment was held. Just read through the problem and you'll be fine :)
30 POINTS PLEASE HELP
A flood hit an area, destroying much of the surrounding ecosystem. One animal species survived the flood, but all of its competitors were eliminated. Despite the reduced competition and an abundance of other resources, there was no substantial growth recorded in the population of the surviving species. What are the plausible reasons for this lack of population growth?
changes in abiotic factors
new competition from nonnative animals displaced by the flood
a decrease in predators
an increase in available living space
lack of available mates after the flood
changes in abiotic factors is the most appropriate answer for this question.
Hope it helps you...
(by Benjemin)
My experiment is based on whether certain mice choose either cheddar cheese or bananas
(mices' most favorable things to eat). The mice that are going to be included in this experiment
are the deer mouse, house mouse, wood mouse, and the golden mouse. Each mouse will be
placed into the same maze where the cheese and the banana will be placed on different sides
and the way the data will be
collected is by direct observation.
What is the dependent variable and the independent variable?
Answer:
The independent variables would be the maze and the cheder cheese and banana the dependent variable would be the different mice
Explanation:
The food and maze doesn't change so this is independent
You are using different types of mice so this is dependent
Independent variables do not change
dependent variable do change and are dependent on the independent variable
Ex different mice(dependent) Like the (Independent) note the food you use does not change
how is climate defined? Do the events described constitute a change in climate for the west coast of the united states
Answer:
Explanation:
the weather conditions prevailing in an area in general or over a long period.
"our cold, wet climate"
Climate change will have a number of negative effects on the West Coast of Canada. The main effects are the rise in sea level, natural disasters, and forest fires. These effects of climate change also have a few positives such as creating jobs, but for the most part are nuisances.
The long-term pattern of temperature and precipitation and its averages or extremes at a location called as climate.
It can be referred to the areas that are local, regional, or global.
What is climate change ?Climate change refers to the condition of long-term shifts in temperatures and weather patterns either by natural like changes in solar cycle or artificial.
Artificial cause refers to burning fossil fuels which generates greenhouse gas and it act as a blanket covered over the Earth by raising temperatures.
The two major greenhouse gases cause climate change includes carbon dioxide and methane.
These gases comes from gasoline use during car driving or coal for heating.
Deforestation also responsible for the release carbon dioxide where as Landfills for garbage are act as a source of methane emissions.
Energy, transport, buildings, agriculture, industry and land are also the causative agents of climate change.
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what exactly is a different in following pictures A and B and need to be done to maintain the situation in picture B
Answer:
in picture A we can see that the environment is very dirty on the other hand in picture b the surrounding is really clean.
Explanation:
the following things should be done to maintain the situation in picture b÷
i) Participate in cleaning program.
ii) don't throw dust on the Road throw it in dustbin .
iii) Stop others from throwing dust in the road and make them clear about the importance of clean environment .
A weak basic solution is most likely to have which pH?
A.
0
B.
14
C.
8
D.
-1
hi <3
the correct option would be C.8
a pH above 7 is considered 'basic' and the higher the pH above 7, the more 'basic' it is
therefore, a weak basic solution would have a pH of 8
hope this helps :)
A small car weighs 10168.25 N. What is its mass? Your answer:
Answer:
Mass is 1036.5 kg
Explanation:
In the weight formular:
[tex]weight = mass \times acceleration \\ [/tex]
weight » 10168.25 N, let mass be m, acceleration is 9.81 m/s²:
[tex]10168.25 = (m \times 9.81) \\ m = \frac{10168.25}{9.81} \\ \\ m = 1036.5 \: kg[/tex]
What is most important to controlling climate on Earth? *
Answer:
Burning fossil fuels produces carbon dioxide, a greenhouse gas. It is called a greenhouse gas because it produces a “greenhouse effect”. The greenhouse effect makes the earth warmer, just as a greenhouse is warmer than its surroundings. Carbon dioxide is the main cause of human-induced climate change.
Explanation:
thanks
How do impulses transmit in the reflex action when a hot object is touched
Answer:
When a person touches a hot object and withdraws his hand from it without thinking about it, the heat stimulates temperature and danger receptors in the skin, triggering a sensory impulse that travels to the central nervous system. The sensory neuron then synapses with interneurons that connect to motor neurons.
Explanation:
Which type of RNA functions to use coded instructions to assemble amino acids?
A) mRNA
B) rRNA
C) tRNA
D) Ribosomes
Answer:
C) tRNA
Explanation:
RNA is also known as Ribonucleic acid and has three types namely:
messenger RNA (mRNA)transfer RNA (tRNA)ribosomal RNA (rRNA)The rRNA forms the core of the protein and helps catalyze the joining of the protein chains.
The mRNA work hand in hand with the tRNA as they send coded instructions to the tRNA. The tRNA then decodes the message sequence into a protein.
The tRNA does this by transferring the appropriate amino acid to the end of the growing amino acid chain.
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Why do sex-linked traits follow different patterns of inheritance than other traits?
A. Males have two X chromosomes, and females only have one.
B. Males carry two copies of every sex-linked gene.
C. Males cannot carry recessive alleles for sex-linked traits.
D. Males only need one recessive allele to have a recessive sex linked trait.
The correct option is D. Males only need one recessive allele to have a recessive sex linked trait.
What is sex linked trait?Genes located on the sex chromosomes are connected to qualities that are specific to gender. The sex chromosomes in humans are X and Y. X-linked traits are more prevalent than Y-linked features since the X-chromosome is bigger.
Red-green colorblindness, which is carried on the X-chromosome, is an illustration of a sex-related feature. Males are more likely to be red-green colorblind since they only have one X chromosome.
A person's gender is determined by their sex chromosomes. The sex chromosomes in humans and other mammals are X and Y. Males have an X and a Y chromosome, while females have two X chromosomes.
Therefore, The correct option is D. Males only need one recessive allele to have a recessive sex linked trait.
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What are proteins made of? *
sugars
glycerol and fatty acids
amino acids
nucleotides
Answer: Amino acids
Explanation:
The building blocks of proteins are amino acids. They are small naturally-grown molecules that include an alpha carbon atom connected to an amino group, a carboxyl group, a hydrogen atom, and a variable component.
Side Chain
Which tissue will be presentin lining of internal organs in animals? Bark in trees is made up of ___. Parenchyma consists of chlorophyll are known as ____. Write the characteristics of involuntary tissues. Write the difference between tendon and ligament Write the difference between simple & complex permanent tissue what will happen IF BASEMENT MEMBRANE IS REMOVED FROM EPITHELIUM Characteristics of schleranchyma tissues
please help me
timeis till 1 o'clock pm
Answer:
Epithelial tissuesubreninchlorenchymaThey are unstraited,smooth,not in our control ,present in glands and canalstendons join muscles to bone and ligament join skin to bone.see IMAGE FOR SOLUTION a hard simple permanent tissue,helps to protect outer layer