Suggest why the quantity of water vapour in expired air is always high?
Not all of the oxygen in the air is taken up by the lungs, and that the gases released when someone breathes out are heated to body temperature and saturated with water vapour. This results in the expired air having a larger water vapour content.
Why does expired air contain more oxygen?All of the oxygen in the air we breathe does not enter our lungs during the breathing process. The amount that is absorbed is little. Therefore, some oxygen is present in expired or exhaled air.
Since we don't consume nitrogen, the percentage of nitrogen remains close to 78%, but the significant difference is the rise in carbon dioxide. More or less 4% of the carbon dioxide and a larger percentage of water vapour than breathed air are found in exhaled air.
Water vapour makes up 0.02 to 0.04% of the air we breathe. Water vapour makes about 5.0 to 6.3% of exhaled air.
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Your heart works by:
entirely voluntary muscle contraction.
entirely involuntary muscle contraction.
a balanced mix of voluntary and involuntary muscle contraction.
almost entirely involuntary muscle contraction, but sometimes voluntary contraction
Answer:
a balanced mix of voluntary and involuntary muscle contraction.
Explanation:
a balanced mix of voluntary and involuntary muscle contraction.
The genotype of a dog with black coat (C) and brown eyes (E) is CCEE. The genotype of a dog with tan coat (c) and grey eyes (e) is ccee. Assume both genes are unlinked. Assume two dogs with these specific genotypes produce puppies.
What is the ratio of phenotypes in the F2 generation?
A The ratio will be 9:3:3:1
B The ratio will be 9:6:1
C The ratio will be 16:0
D The ratio will be 9:1
If carbon dioxide is removed from a plant’s environment, what would you expect to happen to the plant’s production of glucose molecules?
Explanation: If you remove its carbon dioxide, supplants need come dioxide to produce glucose. Carbon dioxide is the carbon source for advance glucose production via via photosynthesis. So with that becomes dioxide, they cannot make glucose, they cannot make glucose. And so the mass production of glucose would have to stop.
Help ASAP, its for k12 Bio
Answer:
Carbon dioxide
Explanation:
Carbon dioxide needs to be removed from the body so it diffuses from blood into alveoli.
help asp please BRAINLIEST
Answer:
Zirconium
manganese
potassioum
5- period
Explanation:
i am in chemistry rn and am learning this stuff so i hope this helps
Why was performing a baseline Passat necessary to interpret the results of your experiment
Performing a baseline Passat was necessary to interpret the results of your experiment because a baseline expedites our start-up process, improves our understanding of the task, and enables us to spot data irregularities.
A baseline is a straightforward model that, while not requiring a lot of knowledge or time to construct, yields respectable performance on a task. Pretrained convolutional neural networks for vision-related tasks, logistic regression for categorizing structured data, recurrent neural networks, and gradient-boosted trees are examples of baseline models that are frequently used (Ameisen 2018).
A baseline is imperfect due to its simplicity. For instance, the bag of words model for language modeling does not account for the sequence in which the words appear in each phrase; as a result, it lacks a great deal of structural information. Additionally, a lot of baselines rely heavily on model-integrated heuristics or solid modeling assumptions (i.e., linear models).
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1. What class of biological molecules does sugars belong to?
2. How do sugar molecules provide us with energy?
3. What other molecules (besides sugars) serve as a source of energy for our bodies? How do they do that?
4. How do we know how much energy different types of food have? Why food labels list everything per 2000 kcalorie diet?
5. How do we know how much food do we need to eat?
6. Are your energy consumption and energy expenditure balanced? How do you know that? Hint: compare your BMI and energy needs calculations
7. What is the role of physical activity and exercise in balancing our energy consumption and energy expenditure? Are there any additional benefits of physical activity (besides energy balance)? What is your favorite form of physical exercise?
1. Sugar is a monosaccharide or a disaccharide. Sugars are also known as any sweet crystalline solid disaccharide (sucrose).
2. Sugar molecules provide us energy by breaking it into micromolecules and then the cell gets energy from it.
3. Proteins and lipids are the molecules that serve as a source of energy in our body.
4. We know how much energy different types of food have due to the presence of macromolecules in them.
5. The main role of physical activity and exercise in balancing our energy consumption and energy expenditure is that physical activity consumes a high amount of energy for its activities.
What class are sugars related to?Sugar belongs to the class of carbohydrates, carbohydrates, sugar, carbohydrates are the molecules that condense carbon, hydrogen, and oxygen. Your body smashes down carbohydrates and changes them into a simple sugar called glucose. This ready form of energy is carried through the blood and delivered to every cell. The supply of glucose needs to be constant and dependable, so your body has developed several systems to make sure of this supply and get the energy.
Other molecules, such as fatty acids and proteins, can also serve as energy sources when they are funneled through suitable enzymatic tracks. sugar depends on many factors, counting your height, age, general state of health, job, time off time activities, physical activities, genetics, body size, and environmental factors.
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Which of the following type of forest is likely to have the most nutrient-rich soil?
Responses...
A. tropical rain forest
B. coniferous forest
C. tropical dry forest
D. deciduous forest
Answer
ATropical rain ️ forestAnswer: The correct answer is D. deciduous forest
Explanation: This answer has been confirmed correct.
The temperate deciduous forests have the most nutrient-rich soil.
The table lists some organelles and functions. Only one pair is correctly matched.
Functions of Organelles
Organelle Function
Nucleus Directs cell activity
Endoplasmic reticulum Breaks down sugar molecules to supply energy
Golgi apparatus Supports and protects organelles in the cell
Lysosome Produces proteins for the cell
Which organelle in the table is correctly matched with its function?
nucleus
endoplasmic reticulum
Golgi apparatus
lysosome
Answer:
nucleus I believe
Explanation:
Criticize me if I'm wrong but the nucleus' is like the brain of the cell for how its the main organelle. Hope this helps
Answer:nucleus
Explanation:
explain between glucose and glycogen and the role of the liver maintaining the blood glucose
In response to the pancreatic hormones insulin and glucagon, the liver helps maintain blood glucose levels. Glucose enters the liver after a meal, and blood glucose levels rise. This excess glucose is handled by glycogenesis, which occurs when the liver converts glucose into glycogen for storage.
What is blood glucose?Glycemia is the concentration of glucose in the blood of humans or other animals. It is also known as blood sugar level, blood sugar concentration, or blood glucose level. A 70 kg person's blood contains approximately 4 grams of glucose, a simple sugar, at all times. A fasting blood sugar level of 99 mg/dL or less is considered normal, 100 to 125 mg/dL indicates prediabetes, and 126 mg/dL or higher indicates diabetes. The main sugar found in your blood is blood sugar, also known as glucose. It is the primary source of energy in your body and is derived from the food you eat. Your blood transports glucose to all of your body's cells, where it is used for energy. Diabetes is a disorder in which your blood sugar stations stand too elevated.To learn more about glycogen, refer to:
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The excess glucose exists dealt with by glycogenesis in which the liver transforms glucose into glycogen for storage.
What role does the liver have in maintaining blood glucose?By converting glycogen into glucose, a process understood as glycogenolysis, the liver produces sugar or glucose. By gathering amino acids, waste materials, and lipid byproducts, the liver can also produce the glucose or sugar that is required. Glucose 6-phosphatase catalyzes the buffering effect of liver glycogen to maintain blood glucose levels. Glycogenolysis in muscles converts glucose 6-phosphate into glycolysis without wasting any adenosine triphosphate (ATP), as this enzyme is exclusively found in the liver.By balancing the uptake and storage of glucose through glycogenesis with the release of glucose through glycogenolysis and gluconeogenesis, the liver plays a crucial part in this process. The numerous substrate cycles in the main metabolic pathways of the liver are crucial in controlling the generation of glucose.The excess glucose exists dealt with by glycogenesis in which the liver transforms glucose into glycogen for storage.
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In the digestive system, proteins are digested into amino acids.
Describe what happens to any of these amino acids that are in excess, and how their breakdown product is removed from the body.
Answer:
Amino acids are transported to the liver during digestion and most of the body's protein is synthesized here. If protein is in excess, amino acids can be converted into fat and stored in fat depots, or if required, made into glucose for energy. What is left is usually turned into waste and is turned to urine.
Explanation:
Hope it helps! =D
Salts are blank and blank in nature
Salts are crystalline and ionic in nature.
Crystalline is the property of solid substances in which the components or the molecules of the the solid substances are arranges in highly ordered manner. The appearance of such substances is crystal-like. These substances have sharp melting points.
Ionic nature of substances refers to the presence of ions in any substance. The ionic substances may have a positive charge or a negative charge or they may be neutral. Ionic substances have the tendency to either gain or lose electrons. When it gains electrons it becomes negative and when it loses electrons it becomes positive. Ionic substances are good conductors of electricity.
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a short pea plant that is heterozygous for flower colour is crossed with a homozygous tall pea plant that is also heterozygous for a flower colour. determine the genotypes of the plant. what gametes can the plants produce
The genotypes of the plant are,
Short Plant + Heterozygous Flower Color- ttYy
Homozygous Tall Plant + Heterozygous Flower Color- TTYy
The gametes for short plant with heterozygous for flower color are tY, and ty. Where gametes for homozygous tall plant with heterozygous for flower color are TY, and Ty.
T- Tall height allele, t- short height allele; Y/y- Flower color allele.
Heterozygous Allele- A gene can exist in two or more different forms, known as alleles, and they can all be present at the same location, or locus, on a chromosome. The term "heterozygous" describes the presence of several alleles for a given characteristic.
Homozygous Allele- In terms of genetics, being homozygous means have inherited the same alleles (versions) of a genetic marker from both biological parents. A person who possesses two identical copies of a genetic marker is said to be homozygous for that marker.
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what does the model apply about the relationship between photosynthesis and cellular respiration
Photosynthesis makes the glucose that is used in cellular respiration in order to make energy molecules in the form of ATP.
What is the difference between photosynthesis and respiration?We know that photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as a food product which is used by plants and oxygen as a by-product. The process of cellular respiration converts oxygen along with glucose into the water and into carbon dioxide. Actually, water and glucose are the by-products, and ATP (adenosine triphosphate) is the energy that is transformed from the process.
The energy released by photosynthesis is stored during the process of cellular respiration. During photosynthesis, the food is broken down during the process of cellular respiration.
So we can conclude that photosynthesis removes carbon dioxide from the atmosphere while cellular respiration again brings carbon dioxide.
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what does the flagellum do in prokaryotic cells?
Describe your experience as the cell engages in two different modes of transporting substances in/out of a cell. Use terms such as energy, high concentration, low concentration, and equilibrium.
Cell uses two different means of transport for in and out for transporting molecules known as active and passive transport .
Active transport move molecules and ion from lower concentration to higher concentration with help of energy in form of ATP . Passive transport moves molecules and ions from a higher concentration to lower concentration without any energy.
Active transport involves evolves moving of molecules across cellular membrane by using cellular energy. one of the main example of active transport is transfer of calcium ion out of heart muscle. while process of passive transport plays important role in homeostasis .
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after which stage can a woman be described as pregnant
A pregnancy is considered to be established only after implantation is complete.
Pregnancy is the term used to describe the period during which a fetus develops in or in a woman's womb. Pregnancy is usually about forty weeks from the last menstrual period to delivery or just over nine months. Healthcare providers refer to her three stages of pregnancy called trimesters.
She became pregnant soon after her marriage. There was a meaningful pause before the winner was announced. Early signs of pregnancy include breast tenderness nausea vomiting called morning sickness but it can occur at any time of the day or night headache hot flashes bloating loss of appetite, and fatigue. Late periods of breast pain and tenderness fatigue nausea, and morning sickness are common early pregnancy symptoms says, Taylor.
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13) Write two problem questions about something you can observe right now then write two hypotheses for the problems previously created.
Two questions may include how pollutants may affect global warming or why chlorofluorocarbons hamper the ozone layer, which can be investigated by raising the hypotheses 'pollutants can drastically affect global temperature' or 'chlorofluorocarbons effectively alter the ozone layer', respectively.
What is an investigational hypothesis?An investigational hypothesis can be defined as a plausible explanation about the observation of phenomena that occur in the real world which must be tested by experimentational procedures in order to confirm or reject them.
During the scientific method, we raise questions that may be answered by confirming hypotheses, a process that leads to collecting empirical evidence in favor of such ideas.
Therefore, we can conclude that hypotheses such as for example if pollutants may affect global warming by acting as greenhouse gases can be solved by using the scientific method, which involves making experiments to confirm or reject the hypothesis.
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how dose the number of chromosomes found in the two daughter cells compare to the number of chromosomes found in the mother cell
A DRAWBACK of living in a
group is . . .
A. more likely to be eaten by predators.
B. having to look out for yourself.
C. being less obvious to predators.
D. increased competition for food and mates.
Answer: D
Explanation:
The drawback of living in a group is the increased competition for food and mates.
Option (D) is correct.
When individuals live in a group, they often have to compete with other group members for limited resources such as food and potential mates. This competition can create challenges and reduce the availability of resources for each individual within the group.
Living in a group can have advantages, such as enhanced protection against predators (option C) and increased vigilance through cooperative behavior (option B). However, the drawback arises from the fact that resources within an environment are finite, and when individuals live in close proximity, they must compete for those limited resources.
This competition can range from competing for access to food sources to competing for mating opportunities. Individuals within a group must invest time and energy in acquiring and defending resources, which can lead to increased stress, lower reproductive success, and potential conflicts within the group.
Thus, the increased competition for food and mates is a notable drawback of living in a group.
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Question in picture!
Need help with bio pl
Which population characteristic
describes the number of individuals in
an area per the unit?
A. Population Growth
B. Geographic Distribution
C. Population Density
D. Habitat Distribution
Answer:
C.
Explanation:
It is the number of individuals living within that specific location determines or the number of individuals divided by the size of the area.
Which TYPES of cell transport go AGAINST the concentration gradient? list all possible so not just active!
The type of cell transport which go against the concentration gradient requires energy. This type of transport includes active transport which have some important functions in cell.
What is Active Transport?
During active transport, substances move against the concentration gradient i.e., from a region of low concentration to a region of high concentration. It is known as active transport because it requires the use of energy (ATP).
There are two main types of active transport: primary active transport that uses ATP, and secondary active transport that uses an electrochemical gradient.
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In some countries, human waste is used as a fertilizer. If produce is grown in this type of fertilizer, it is possible that it will be contaminated with the protozoan that causes amoebic dysentery. One method of removing the protist without ruining the food is to place the produce in a 5% salt solution. Explain how this would kill the protist. How could you return them to normal?
The plant produce contaminated with the protozoan that causes amoebic dysentery when placed in 5% salt solution will kill the contaminants due to osmotic difference. The produce then can be brought back to normal by placing in pure water.
Amoebic dysentery is the disease caused by the microorganism called Entamoeba histolytica. The source of infection is human fecal matter. The symptoms of the disease includes abdominal cramps and diarrhea.
Osmotic difference is the difference of solute particles between two substances. When the protozoan cells are placed in salt solution, the salt solution has more solute particles that causes the secretion of water to the outside of protozoan cell, therefore causing its death by dehydration.
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Whats the correct answer answer asap
Answer:
pepsin
Explanation:
This is used in the breakdown of proteins
Which elements make up a water molecule?
hydrogen and nitrogen
oxygen and nitrogen
oxygen and carbon.
hydrogen and oxygen
Answer:
Hydrogen and Oxygen: The liquid condition of H2O at standard pressure and temperature is referred to as "water."
Explanation:
The polar chemical component and molecule known as water is a liquid at normal pressures and temperatures. According to its chemical composition, each molecule of water has one oxygen atom and two hydrogen atoms. Due to their polarity, water molecules can form up to four hydrogen bonds with molecules close by, regardless of whether they are in a liquid or solid state. Hydrogen bonds are roughly ten times stronger than the Van der Waals force, which attracts molecules to one another in most liquids. This explains why water has far higher melting and boiling points than other compounds that are analogous to it, including hydrogen sulfide.
Water contains numerous distinctive biological characteristics that are essential for the growth of life. It does this function by enabling organic chemicals to interact in ways that eventually permit replication. Water is essential to all known kinds of life. Water is crucial for many bodily metabolic processes as well as serving as a solvent in which many of the body's solutes dissolve. Anabolism and catabolism together make up metabolism.
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If a scientist wanted to remove genetic material from a cell to make a DNA finger-
print, what organelle could be used?
Which form of passive transport is related to the movement of water in cell
Answer:
Osmosis
Explanation: