Blood is forced into the pulmonary artery by the ventricle when it contracts, passing via the pulmonic valve. Blood is transported through the pulmonary artery to the lungs, where it "gathers" oxygen. It then exits the lungs and travels through the pulmonary vein back to the heart. Blood flows into the left atrium.
Biology 1 sem 1 The nature of sciences
Which do you think is better for thé environnement :paper or plastique
Paper is better for the environment.
Paper bags have a few blessings over plastic bags when it comes to sustainability. they may be easier to recycle, and, because they're biodegradable, they can be used for functions like composting.
Plastic bags generate 39% much less greenhouse fuel emissions than uncomposted paper bags and 68% less greenhouse gasoline emissions than composted paper luggage. Plastic baggage consume less than 6% of the water needed to make paper baggage.
The environment gives us limitless advantages that we can't repay our entire life. As they're related with the woodland, timber, animals, water, and air. The wooded area and bushes filter the air and take in dangerous gases. flowers purify water, lessen the probabilities of flood keep herbal balance and plenty of others.
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Enzymes function best at particular pH values. In the normal human stomach, a pH of 2.0-3.0 provides the environment required for the proper functioning of the digestive enzymes found there. What effect would the medicines that are basic have on these enzymes' ability to digest (break down) food?
Answer:
One of the most important roles of enzymes is to aid in digestion. Digestion is the process of turning the food we eat into energy. For example, there are enzymes in our saliva, pancreas, intestines and stomach. They break down fats, proteins and carbohydrates
What is a way that
humans have responded
to the lack of living space
in cities from
overcrowding?
A. By making more land such as islands for
people to live on.
B. By building tall buildings and stacking the
"houses" on top of each other.
C. By shrinking the size of agricultural land to
make more space for housing.
Answer:
B
Explanation:
By BUILDING tall buildings and stacking the "Houses" on top of each other.
identity the stomata components. record your answer under “ slide 2” on your lab report: phloem, stoma, xylem, dermal, guard cells, ground, vascular
The stomata componebts are a) Subsidiary cell and b) Stomatal pore
Stomata are the tiny openings present at the epidermis of leaves. We can see stomata under the mild microscope. In some of the vegetation, stomata are present on stems and different components of plants. Stomata play an crucial position in gaseous alternate and photosynthesis.
What system is stomata?
Via photosynthesis, they use sunlight and carbon dioxide to make food, belching out the oxygen that we breathe as a byproduct. This evolutionary innovation is so relevant to plant identity that almost all land flora use the identical pores — known as stomata — to take in carbon dioxide and launch oxygen.
The stomata was discovered by using Julien Joseph Vesque.
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Warmer air can hold more moisture than cooler air.
Question 9 options:
True
False
The statement "Warmer air can hold more moisture than cooler air." is a True statement
This is further explained below.
What is air?Generally, The layer of gases that are held in place by Earth's gravity and that surrounds the planet to create its planetary atmosphere is referred to as the atmosphere of Earth or simply air.
In conclusion, The assertion that "Warmer air may store more moisture than colder air" is one that can be verified as being accurate.
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Hypothesis: If the tire pressure for a car is set at the manufacturer's recommended amount, the gas mileage of the car will increase.
How would you test this hypothesis?
Answer:
Seems more like a physics question but anyways
Explanation:
Tyre air pressure as recommended by the manufacturer ensures less energy application in moving your car, and easy movement of the engine means low fuel gulping. Regular air pressure check not only improves fuel efficiency but also results in smoother handling and better control of your car.
Through a published schedule and set of guidelines, the Centers for Disease Control and Prevention (CDC) and public health officials recommend that every child receive certain vaccinations by age 6. What are the benefits of this recommendation to public health officials, to the community and to other children?
Answer: to ensures your baby's immune system gets the help it needs to protect your child long-term from preventable diseases. Not vaccinating your child on time can make someone else sick.
Explanation: hope this helps
The benefits of the recommended vaccination schedule include improved public health, reduced disease transmission, protection for vulnerable populations, and prevention of outbreaks.
What is vaccination?Vaccination, also known as immunization, is a medical process that involves the administration of a vaccine to stimulate the immune system and provide protection against specific infectious diseases. Vaccines are composed of weakened or killed pathogens, parts of pathogens, or harmless components that resemble pathogens. When a vaccine is introduced into the body, it triggers an immune response, stimulating the production of antibodies and the activation of immune cells.
The primary goal of vaccination is to prevent diseases and their complications. By receiving vaccines, individuals develop immunity to specific pathogens, making them less susceptible to infection. Vaccination not only protects the vaccinated individual but also contributes to public health by reducing the spread of infectious diseases within communities. This concept, known as herd immunity, occurs when a significant portion of the population is immune, preventing the sustained transmission of a pathogen and safeguarding those who cannot receive vaccines due to medical reasons or being too young.
Overall, vaccination has been one of the most successful and cost-effective public health interventions, saving countless lives and significantly reducing the burden of infectious diseases worldwide
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Which statements are true?
Select all that apply.
Changes within the rock cycle can take millions of years.
Changes within the rock cycle can take thousands of years.
Some changes within the rock cycle can occur very quickly.
what are the three main polysaccharides? Provide a description of the structure and function for each.
The three main forms of polysaccharides, cellulose, starch, and glycogen, are also referred to as glycans and are all created by connecting glucose molecules in various ways.
What is meant by polysaccharides?The most prevalent kind of carbohydrates in food are polysaccharides, often understood as polycarbohydrates. They are long-chain polymeric carbohydrates made up of glycosidic connections that connect monosaccharide units. Using amylase enzymes as a catalyst, this carbohydrate can combine with water to create its constituent sugars. The three main forms of polysaccharides, cellulose, starch, and glycogen, are also referred to as glycans and are all created by connecting glucose molecules in various ways. One molecule, cellulose, is thought to contain 50% of the organic carbon in the planet.
The polysaccharide cellulose, an organic molecule with the formula n, is made up of a linear chain of several hundred to many thousands of D-glucose units that are covalently bonded. Green plants, numerous types of algae, and oomycetes all have basic cell walls that contain cellulose as an essential structural element.A polymeric carbohydrate known as starch or amylum is made up of many glucose units connected by glycosidic linkages. Most green plants synthesize this polysaccharide as a form of energy storage.The stored form of glucose, known as glycogen, is composed of several linked glucose molecules. Your body's major source of energy is glucose (sugar). You get it from the macronutrient carbs found in some of the foods and beverages you consume.To learn more about polysaccharides refer to:
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Click to review the online content. Then answer the question(s) below, using complete sentences. Scroll down to view additional questions.
Online Content: Site 1
Describe three observations an astronaut might make while viewing Russia at night.
When looking at Russia at night, an astronaut would notice three things:
Main cities
Cloud cover in some locations
Geographical features such as rivers and lakes
Briefing :An astronaut will be able to see the following while flying over Russia at night:
Geographical characteristics like lakes and rivers will also be visible because humans tend to build structures around these, and when their lights shine bright at night, the overall shape of the lakes and rivers will be noticeable. The main cities will be visible because the electricity grid will be brightly lit, cloud cover in some areas because they would be looking from pretty high up, and cloud cover.
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After observing tadpoles swimming in the water, you could infer that all amphibians have gills.
True or false
Answer:
All amphibians are born in the water. When they are young, they have gills to take oxygen from the water. When they grow up, most develop lungs so they can breathe air and live on land.
Explanation:
Lactic acid fermentation is a type of anaerobic process.
TRUE OR FALSE?
Answer:
The answer is TRUE
what’s the correct answer answer asap for brainlist
Answer:
D. larynx. It is also the area of the throat containing the vocal cords and used for breathing, swallowing, and talking.
Explanation:
Hope it helps! =D
does anybody know the answer to this question ?????
Answer:
I think it might be c
Explanation:
it looks like a freshwater fish, and freshwater fish have a high intake of water which results in formation of large volumes of urine
Which of the following amino acids in a protein are likely to be buried deeply in a protein away from water when folded into their tertiary
conformation:
A. Serine, threonine, glutamine
B. Lysine, arginine, histidine
C. Valine, leucine, isoleucine
D. All of the above
E. None of the above
The series of amino acids which is most likely to be buried in a globular protein far away from water when they are folded into their tertiary structure are:
Lysine, arginine, histidine
The correct answer choice is option b
How amino acids are buried in proteins?Amino acids such arginine are buried in proteins away from water by means of their side chains, when they lie on the surface of proteins on its exposure to water.
So therefore, whenever certain amino acids lie with their side chain in the surface of globular proteins, it caused them to be buried in such proteins.
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what environment did the spinosaurus live in
Answer/explanation; The Spinosaurus would have lived in a humid swampy/marsh/lake area , because they hunted mostly fish and small crocodiles.
what is neuro-muscular co-ordination??
Answer:
It's the ability of the nervous system to control the muscles of your movements.
Explanation:
Neuromuscular coordination is the ability of the central nervous system (CNS) to control the muscles to perform specific tasks unconsciously.
Neuromuscular coordination has two components: Intramuscular coordination and Inter muscular coordination. Both components are necessary for the efficient use of muscles. It is found between the terminal end of a motor nerve and a muscle.
Neuromuscular coordination is also referred to as "muscle memory".The number of muscle fibers varies between muscle groups. It is an important factor in long training.
It can also be improved in various ways. Most important is the Resistance training as it improves your code rating. It could also be increased by maximum load training, synchronized movement, and balance training.
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2. What is the maximum initial reaction rate for this enzyme at pH 7?
The maximum initial reaction rate for this enzyme at pH 7 is 350.
What is the enzyme reaction's beginning rate?The initial rate of reaction is represented by the dotted red line on the plot, which displays the gradient of the straight line segment. When the concentrations of the enzyme and substrate are known, the initial rate of the reaction can be properly compared to fresh enzyme or substrate concentrations.
Why do enzymes function best at a pH of 7?The bulk of naturally existing living things have a pH of 7, which is neutral and where enzymes function best. At pH 7, which is considered neutral, the quantities of acid and base are equal.
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Question 2 of 10 Which two processes must happen before cells can make large amounts of ATP for every glucose molecule split in two? A. Glycolysis B. The electron transport chain C. The Krebs cycle D. Fermentation
The two processes that must happen before cells can make large amounts of ATP for every glucose molecule split in two are: (B) The electron transport chain; and (C) The Krebs cycle.
Electron Transport Chain is the series of electron complexes, through which the electrons pass and produce ATP via redox reactions. There are 4 protein complexes through which electrons pass. There is also a fifth complex present at the end which functions as the ATPase.
Krebs Cycle is a series of chemical reactions that functions to oxidize the Acetyl CoA and produce energy in the process. The process takes place inside the matrix of mitochondria.
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Answer:
the kerb cycle and electron chain
Explanation:
trust me bro
Help asp brainless!! Help with 1,2 and 3
Answer:
the seocond one i do believe it is 8
and then
Scientists use the periodic table to quickly refer to information about an element, like atomic mass and chemical symbol. The periodic table's arrangement also allows scientists to discern trends in element properties, including electronegativity, ionization energy, and atomic radius.
Explanation:
Answer:
1_True
2_8
3_not really sure but according to scientist it is organized by the increasing atomic numbers
Explanation:
Which of these is the BEST
description of habitat?
A. the area where an organism lives
B. the resources used by a different species
C. the migration route of the species
D. the weather
Answer:
A
Explanation:
Habitat is the area where an organism lives so yeah
Answer: A
Explanation: why and because a habitat is where organisms lives so you can't take away the habitat and expect them to live.
Which is TRUE about a concave
lens that causes the light to
refract?
A. It is a medium that speeds up light.
B. It is a medium that does not change the light.
C. It is a medium that slows down light.
D. It is a medium that absorbs light.
Answer: The correct answer is B. It is a medium that does not change the light.
Explanation: The concave lense affects the phase velocity, but not the speed of light. A lens's shape determines the images it forms. When parallel rays of light enter a concave lens, the light waves refract outward or spread out. The light rays refract twice: first when entering the lens and second when leaving the lens. Only the light rays passing through the center of the lens remain straight.
At sea level, the atmospheric presses down with a force of about _____ kilogram per square centimeter.
Question 8 options:
4
1
3
2
At sea level, the atmospheric presses down with a force of about 1 kilogram per square centimeter and is denoted as option B.
What is Force?This refers to as a type of influence which is capable of changing the motion of an object or body and the S.I unit is Newton. Air pressure on the other hand is the weight exerted on a given area of body.
At sea level, the atmospheric presses down with a force of about 1 kilogram per square centimeter and is therefore the reason why option B was chosen as the most appropriate choice.
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In a chemical reaction where 100 grams of Chemical X react completely with 50 grams of Chemical Y, how many grams of product will be formed? ( PLEASE HELPPP)
If 100 grams of chemical X and 50 grams of chemical Y completely react together, 150 grams of the product should be formed.
Law of conservation of massThe law of conservation of mass opines that in chemical reactions, the masses of participant atoms are conserved throughout the process of the reaction. Even though the forms of these atoms might change during the whole process.
Going by this law, if 1 g of atom A and 1 g of atom B, for example, chemically react to produce a compound, AB; the mass of AB must be the sum of the masses of A and B. That is, AB should be 2g.
Now to the problem at hand. 100 grams of X reacts with 50 grams of Y completely.
100 + 50 = 150 grams.
Therefore, according to the law of conservation of mass, the mass of the product formed would be 150 grams.
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help asap
Rudolf Virchow's work resulted in the claim that all cells come from preexisting cells. How did this impact the creation of cell theory?
It significantly contradicted earlier claims about cells in cell theory.
It caused scientists to quit researching cells until new microscopes were invented.
It showed that cell theory is very misunderstood in the scientific community.
It added to our understanding of cells, completing the claims in cell theory.
Rudolf Virchow impact on the cell theory is that It added to our understanding of cells, completing the claims in cell theory.
The correct answer choice is option d
Rudolf Virchow contribution on the cell theory.It happens that Virchow proposed that " all cells comes from pre-existing cells ". This implies that a living cells can only come into existence only from a previously existing cells. This infact, gave more insight on cellular pathology. This works of Rudolf Virchow added more light to the understanding of cellular structures and functions.
Other cellular theories includes:
All living organisms are composed of cells.There is no life apart from the life of cells.All living organisms are either unicellular or multicellular organisms.The study of cell is known as cytology.
The scientist who is regarded as the father of cell is Robert Hooke.
In conclusion, the contribution of Rudolf Von Virchow gave us more understanding about the fundamentals of cells.
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How will an increase in pressure affect the following chemical equilib-rium: 2NOCl (gas) ⇆ 2NO (gas) + Cl 2 (gas)? Explain your answer.
An increase in pressure in the given reaction in chemical equilibrium will result in equilibrium shifting to the left where there will be a reduction in pressure.
What are the factors that affect a reaction in equilibrium?A reaction in equilibrium is a reaction in which the rate of the forward reaction is equal to the rate of the backward.
The factors that affect a reaction in equilibrium include;
concentrationpressure in gasestemperature.According to the principle of equilibrium, when a constraint is applied in a reaction system in equilibrium, the equilibrium position shifts to annul the change.
For example, for a reaction in equilibrium involving gases, if the forward reaction involves an increase in pressure, increasing the pressure of the system will result in the equilibrium shifting to the left and vice versa.
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Select the correct answer.
Which of the following conclusions can be drawn from the 2008 passage of Proposition 2?
A.
B.
O C.
O D.
California voters are largely vegetarians.
California voters believe that animals have many rights.
California voters oppose conditions they see as inhumane.
California voters feel that all animals should have spacious living conditions.
voted supported this ballot measure to prohibit the confinement of pregnant pigs, calves raised for veal, and egg-laying hens in a manner that does .
California Voters are largely Vegetarians?A recent study that compared variations in state-by-state adoption over a 15-year period shed light on how interest in veganism and plant-based diets has varied across the US."Plant-based diets are quickly gaining popularity, but the shift hasn't been gradual. In recent years, vegan diets have gained popularity quickly, and more meat-free goods have entered the market, according to Kelly Fairchild, a global business development manager at Ipsos Retail Performance.
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Which type of mutation has occurred?
Original DNA sequence: GGCCGTTTCACC
mutated DNA sequenceGGCCGTTACACC
When a single base pair is added, removed, or altered in a genome, it is referred to as a point mutation.
The sickle cell anemia condition is a case of a point mutation.
Only one base pair is altered in the question at hand. T transforms with C
GGCCGTTTCACC
GGCCGTTACACC
What is mutagenesis?A mutation is a change to an organism's DNA sequence. Errors in DNA replication during cell division, exposure to mutagens, or viral infection can all cause mutations.
such as a cyclops cat, four-legged ducks, and snakes with two heads.
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How many pyruvate, ATP, and NADH are produced from the glycolysis of one glucose molecule?
A) 1 pyruvate, 1 ATP, 1 NADH
B) 2 pyruvate, 1 ATP, 1 NADH
C) 2 pyruvate, 2 ATP, 2 NADH
D) 1 pyruvate, 2 ATP, 2 NADH
Answer: C. 2 pyruvate, 2 ATP, 2 NADH
During Interphase a cell grows, duplicates organelles, and: a. Copies DNA b. Divides the nucleus c. Divides the cytoplasm Produces a new cell d. following stages shown in the figure does
A cell expands, makes additional organelles, and copies its DNA during the interphase.
Cell division:Cell division is the splitting of a mother cell into two or more daughter cells. Cell division typically takes place as part of a lengthier cell cycle.
The two separate cell division processes are meiosis and mitosis. The process of making new cells for the body, known as mitosis, is usually meant when the term "cell division" is used. Meiosis, a cell division process, is what creates egg and sperm cells. Mitosis is an essential biological mechanism.
What is the function of cell division?The process of cell division is how new cells are created for the body's needs of growth, repair, and replacement. Both the nuclear material and the cytoplasm are divided during this process. All somatic (or "somatic") cells in the body—aside from the gametes, which generate eggs and sperm—reproduce through a process called mitosis.
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