HI PLEASE HELP!! (question 21)

Answer:

Explanation:

When a population reaches a high density, there are more individuals trying to use the same quantity of resources

that's all i know.

The sequence of amino acids in the chain and the folding of the chain determine what kind of protein it will be.

Amino acids are the basic building blocks of proteins, There are total 22 amino acids that are involved in protein formation inside the living body. Out of these a few can be synthesized efficiently inside the body and are therefore called non-essential amino acids. Rest are called the essential amino acids and are obtained through diet.  

Proteins are the polymers of amino acids. The linear chain sequence of amino acids is the determinant of the protein functioning and also decides how the protein will fold so that it can perform its function properly.

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It is true that some DNA segments are involved in regulatory or structural roles, while others are thought to have unknown functions.

Gene: The functional section of a gene is DNA. Humans contain close to 25,000 genes. The nucleotides adenine, thymine, guanine, and cytosine make up the short DNA segments that make up genes.

The code for converting RNA into proteins, the chemical building blocks of the human body, is provided by genes, which are pieces of DNA found within a cell's chromosomes. Thus, a gene serves as a template. The characteristics and functionality of our cells, particularly the immune system, are governed by these proteins.

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In order to confirm the hypothesis Maria should repeat the process with other species of flowers and note the changes.

A hypothesis is a planned clarification for a development. For a hypothesis to be a scientific hypothesis, the methodology needs that one will take a look at it. Scientists typically base scientific hypotheses on previous observations that can't satisfactorily be explained with the on the market scientific theories.

In this experiment, the cut flowers take up water through their stem and also the water moves from the stem to the flowers and leaves. Water travels up small tubes within the plant by a method known as capillarity. golf shot a coloured dye within the water within the jar permits us to look at capillarity at work.

The question is incomplete, find the complete question here

In science class, Maria observes a white-colored cut flower. She sees that the petals turn red when the flower is sitting in a vase that has red-colored water. She forms a hypothesis that the color reaches the flower through the stem. What should Maria do to confirm the hypothesis?

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Answer: nucleus

Explanation:

Diffusion is the optimum kind of transport if the cell needs to react to a quick concentration gradient difference. As the concentration difference widens, the rate widens as well.

Due to the carrier's role, assisted diffusion normally moves along more quickly than simple diffusion at low solute concentrations. The enhanced diffusion will level off at larger concentrations because the carriers will get saturated.

The accumulation of large concentrations of substances that the cell requires, such as ions, glucose, and amino acids, is typically linked to active transport. Primary active transport is a term used to describe a process that employs chemical energy, such as that from adenosine triphosphate (ATP).

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Once an antibody & antigen engage, opsonization somehow doesn't happen right away. Option B

When your system is exposed to with an undesirable chemical, antibodies, pro-teins, protect you. Your immune system produces antibodies that bind to these foreign substances and expel them from your body. An alternative name for an antibodies is immunoglobulin.

Immunoglobulins can be found in blood, various tissues, and other fluids. They are produced by the plasma cells of the immune system, which are related to B cells. The immune system's B cells become activated and transform into plasma cells in response to a specific antigen binding to the surface of an antibody.

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The type of cell pictured is a eukaryotic animal cell.

Cells is the most fundamental unit of life. It is also the building block of large organisms. A cell is of two types: prokaryotic and eukaryotic. In eukaryotic cells also there are two divisions: plant cell and animal cell. A cell possesses all the components necessary for it to be functional and alive.

Animal cell is a type of eukaryotic cell. It is different from the animal cell that it does not possess chloroplast and cell wall. Animal cells are therefore flexible in nature. Animal cell also has the cell organelle called centrosome and lysosome that are not present in plant cell.

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When conducting a population sampling study, on the second capture attempt, we count BOTH the tagged and total number of captured individuals.

So, option A is correct.

Population is typically described as the number of people in a single area, whether it be a city or town, region, country, continent, or the world.

There are some population characteristics such as size, spatial distribution, age structure, or birth rate and death rates which change over time. These characteristics can help scientists or governments make decisions concerning its citizens.

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Answer:

1) the common flat glass slide and 2) the depression or well slides. Well slides have a small well, or indentation, in the centre to hold a drop of water or liquid substance. They are more expensive and usually used without a cover slip.

Explanation:

The symbol of blood is used as a symbol of corruption, guilt, and repentance. Blood is a symbol of murder in most of Shakespeare's plays.

Play involves experimentation with one's environment as well as repetition of experience and exploration. It improves the cognitive, physical, social and emotional well-being of children and youth. It promotes learning.

A play is a work of drama consisting mostly of dialogue between characters and intended for theatrical performance rather than mere reading.

The word play meaning a dramatic performance originated in the early fourteenth century with roots in the Greek paizo, meaning "to act." It is a literary form of writing for the theatre.

Thus, the symbol of blood is used as a symbol of corruption, guilt, and repentance. Blood is a symbol of murder in most of Shakespeare's plays.

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Your question is incomplete, but most probably your full question was,

What does blood symbolize in the play Macbeth?

When glomerular filtration rate increases, the flow of filtrate through the tubule increases.

Urine production starts with glomerular filtration. It is the procedure your kidneys utilize to filter extra fluid and waste from your blood into the kidney's urine-collecting tubules, allowing your body to discard them. When GFR rises, the sodium concentration in the filtrate rises; when GFR falls, it will fall. Increase the flow rate to release more Na+ into the urine. Hydrostatic pressure and colloid osmotic pressure both affect the GFR. Under normal conditions, hydrostatic pressure is much higher and filtration takes place.

Hence, glomerular filtration rate increases flow of renal tubules.

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Pernicious anemia is a decrease in red blood cells that occurs when the intestines cannot properly absorb vitamin B12.

Pernicious anemia (PA) is a kind of anemia resulting from a deficiency of cobalamin vitamin B12, which in turn is caused by a lack of intrinsic factor. Intrinsic factor is glycoprotein that binds to cobalamin and helps in absorption of terminal ileum.

Our body needs vitamin B12 to make red blood cells. we obtain this vitamin from eating foods items such as meat, poultry, shellfish, eggs, and dairy products.  intrinsic factor (IF), binds vitamin B12 so that it can be absorbed in the intestines.

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Yes, the motor or sensory neurons in the central nervous system get information from the eyes and hearing via the neurons.

The basic functions of the nervous system are heavily dependent on the microscopic cells known as neurons. They work in a wide variety of specialised roles in the brain's billions of them. For instance, sensory neurons transmit data from the skin, nose, ears, mouth, and eyes to the brain. From the brain, motor neurons send signals to the rest of the body. Through an intricate electrochemical process, all neurons communicate with one another and build connections that influence how you think, learn, move, and behave. Sensory neurons transmit data to the brain from the sense organs (such as the eyes and hearing). Motor neurons transmit signals from nerve cells in the brain to the muscles, controlling voluntary muscle movement like speaking. The CNS receives impulses from peripheral sense receptors through afferent, or sensory, neurons. They often have relatively short axons and lengthy dendrites.

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The following list of organs and their functions:The small intestine is a significant organ that chemically breaks down food and absorbs nutrients and minerals from it.Stomach: This physically breaks down and digests food.

The liver is in charge of metabolising nutrition, cleansing the blood, and producing bile.The bile produced by the liver is stored and concentrated in the gall bladder, a greenish-yellow organ.The primary organ responsible for excreting waste and extra fluid from the body is the kidney.Cholangitis is a severe bile duct infection characterised by fever, jaundice, and pain in the upper right quadrant of the abdomen.Sudden or quick start of sickness, which can be promptly healed by the host’s strong innate immune responses or may cause the host to pass away, are characteristics of acute viral infections.Acute infections include the common cold or flu, acute appendicitis, acute respiratory tract infection, acute kidney infection, and acute bladder infections. Chronic illnesses happen when the immune system is unable to stop the infectious germ.A time of Incubation, during which the host’s innate defences are launched and the genomes are reproduced, comes before an acute infection.

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The ability to engage in life activities including movement, respiration, growth, reactivity to environmental cues, and reproduction can help distinguish live objects from non-living ones. Even while this way of thinking about life has some drawbacks and can result in the aforementioned alternate ideas, it may be appropriate for this age. For instance, because pupils are unable to perceive plant movement, they may not believe plants to be living things.

I think of life as a predetermined, interacting, adaptable, and evolutionary process that occurs in highly organised organic systems. Living things are the system in which life occurs if life is the process. I also question whether or not viruses qualify as living entities. I am in favour of recognizing viruses to be living things, starting with my definition of life and, of course, what others have thought about it.

What do you mean by non-living things?

Anything that lacks life is referred to as a non-living thing, and living things are characterized as having life. They are immobile and devoid of cells and growth. Non-living things have no need for sustenance and do not breathe. Non-living things include things like stones, pens, books, bicycles, bottles, and so forth.

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Answer: b; Highway

Explanation:

Ocean currents convey organisms from one to another abiotic aspect this is affecting the stability of the coral reef ecosystems and state how the aspect is identified as essential to the coral reef ecosystems.

In biology and ecology, abiotic components or abiotic factors are non-dwelling chemical and bodily components of the environment that affect dwelling organisms and the functioning of ecosystems. Abiotic factors and the phenomena associated with them underpin biology as an entire.

An abiotic issue is a non-dwelling part of an atmosphere that shapes its environment. In a terrestrial ecosystem, examples would possibly encompass temperature, mild, and water. In a marine environment, abiotic elements would include salinity and ocean currents.

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The abiotic factor that is affecting the stability of the coral reef ecosystems and state how the factor identified as important to the coral reef ecosystems. The two abiotic conditions in the coral reef contribute.

An abiotic component is a non-residing part of an environment that shapes its surroundings. In a terrestrial environment, examples might include temperature, light, and water. In a marine ecosystem, abiotic elements could encompass salinity and ocean currents.

Abiotic factors are part of the ecosystem and can impact related living matters, but they may be not dwelling. The term “abiotic” comes from the foundation parts “a-” meaning “without,” and “bio,” meaning “life.” The living elements of the surroundings are called “biotic factors.”

Abiotic elements are the non-residing elements of the environment that have a major influence on living organisms. they are able to help decide things like how tall trees grow, wherein animals and flowers are determined, and why birds migrate. The maximum crucial abiotic elements consist of water, sunlight, oxygen, soil, and temperature.

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By regulating the rate of glucose entrance into the glycolytic pathway (glucose phosphorylation) and subsequent metabolism, glucosekinase serves as the beta cell's glucose sensor. Glucokinase is essential for the liver's capacity to store glucose as glycogen, especially in the postprandial period.

For postprandial glucose phosphorylation, metabolic signal production in glucose-induced insulin secretion in beta cells, and the storage of glucose as glycogen in the liver, high glucokinase activity is necessary.

Due to its tight control over the release of insulin, glucokinase is referred to as the glucose sensor of the beta-cell. Therefore, early in the illness, hyperinsulinemia may be caused by glycolytic overactivity, which can be decreased to return to the normal stimulus-secretion coupling.

By regulating the rate of glucose entrance into the glycolytic pathway (glucose phosphorylation) and subsequent metabolism, glucosekinase serves as the beta cell's glucose sensor.

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The correct statement which best describes how the parent cell produces daughter cells with the same number of chromosomes during asexual reproduction is:

Sister chromatids are copied during prophase, and during anaphase they separate to form two nuclei.

The correct option is d.

The process of asexual reproduction, there duplication of the deoxyribonucleic acid by the parent cell involved, thereby leading to the formation of daughter cells still with the same number of chromosomes. This process is an exemplary situation which happens in the prokaryotes.

That being said, when this happens, the sister chromatids then are copied during the prophase, and during anaphase which eventually leads to their separation to form two daughter nuclei.

So therefore, it can be inferred that ase- xual reproduction produces two daughter nucleic.

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The Great Barrier Reef, also known as GBR, is the world's biggest coral reef and is home to numerous corals and marine life. Diuron is mostly to blame for the GBR water's ability to prevent algal formation.

The GBR contains the uncontrollable insecticide diuron. Diuron is extremely harmful, persistent, and has a long range. Diuron prevents the electron transport, which disrupts photosystem II. A significant membrane protein complex called PSII is essential for oxygenic photosynthesis. Therefore, any disruption of PSII will disrupt the synthesis of ATP and NADPH.

However, the following effects of paraquat and high temperatures on algae may occur:

In addition to being a herbicide, paraquat is hazardous to living things. Paraquat exposure caused serious cell damage and hindered cell development.

One of the main global challenges is extreme heat. All creatures, whether terrestrial or aquatic, are under risk as a result of global warming.

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Answer: Pulmonary artery

Explanation:

The PULMONARY ARTERY is the only type of artery in the body which carries deoxygenated blood.

In order for an animal to provide enough respiratory gas exchange and nutrients to its entire body, animals have evolved a circulatory system. The circulatory system is made up of the heart, which pumps blood around the body, and the blood vessels, which transport blood to and from the heart.

The circulatory system is responsible for delivering oxygen and nutrients to all the cells in the body, and for removing carbon dioxide and other waste products. The circulatory system is also involved in regulating body temperature and pH levels.

The heart is a muscular pump that is responsible for circulating blood around the body. The heart is made up of four chambers: the right and left atria, and the right and left ventricles. The atria are the upper chambers of the heart, and the ventricles are the lower chambers.

The right atrium receives deoxygenated blood from the body and pumps it into the right ventricle. The right ventricle then pumps the blood into the lungs, where it picks up oxygen. The oxygen-rich blood then returns to the left atrium, and is pumped into the left ventricle.

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Rogers and Maslow are the personality researchers who would claim that personality is also formed by individual choices and not determined by biology.

Two of the pioneers of humanistic psychology are Abraham Maslow and Carl Rogers. An approach to psychology known as humanistic psychology puts an emphasis on people's capacity for growth, their inner resources, and their inherent strengths.

Abraham Maslow and Carl Rogers, humanistic psychologists, concentrated on the capacity for personal growth in healthy people. They held the view that people aspire to self-actualization. Our view of the self has been substantially influenced by both Maslow's and Rogers' beliefs.

Maslow and Rogers disagree on the humanistic conceptions of self-actualization, nevertheless. Rogers highlights the importance of the environment when discussing Abraham Maslow's theory of human functioning in terms of one's own self.

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Natural selection is most likely to produce new adaptations as a result of the need for survival and adaptation of species to their environment.

What is Adaptation?

The process by which a species adapts to its surroundings; it is the result of natural selection acting on heritable variation over multiple generations is called Adaptation.

Organisms adapt to their environments in a variety of ways, including structure, physiology, and genetics, locomotion or dispersal, defense and attack mechanisms, reproduction and development, and so on.

Organisms can adapt to their surroundings in a variety of ways. They can adapt biologically, which means they can change how their bodies work. The bodies of people living at high altitudes, such as Tibet, are an example of biological adaptation.

Behavioral adaptation can occur in organisms as well. example of behavioral adaptation is how emperor penguins in Antarctica congregate to share their warmth during the winter.

There are four types adaptations:

1. Structural Adaptations

2. Behavioural Adaptation

3. Physiological Adaptations

4. Coadaptation

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Convection is a common method for transferring heat in gases and liquids, in which the movement of the gas or liquid itself moves heat from one location to another.

When you boil water in a kettle, heat is transmitted from the fire to the pot through convection.

what is convection?

The process of convection involves the movement of a heated fluid, such as air or water, in order to transfer heat.

Examples of natural convection:

Rising hot air over a fire. melting ice Due to a pressure difference, there may be a sea wind or land breeze. Warm-blooded creatures have blood circulation.

Convective heat transfer is the process by which heat is transferred from one body to another by currents of flowing gas or fluid. As it flows away from the heated body, air or water rises and is replaced by a cooler parcel in the process of free convection.

Temperature differences within the fluid cause convection. Because of the increased energy of the particles, a fluid loses density at the area nearest to the heat source as it is heated. The less dense portion of the fluid then rises, while the denser portion sinks.

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Stomata take in large amounts of oxygen for photosynthesis, release water vapor and oxygen from the plant. it is located mostly on the undersides of leaves and close when the carbon dioxide level in the leaf decreases. Thus all options for stomata are correct.

Stomata are the small openings present on the epidermis surface of leaves, it play an important role both in gaseous exchange and photosynthesis and controlled by transpiration rate by opening and closing.

It consist of small pores which is called as stoma surrounded by a pair of guard cells and they may open and close according to the turgidity of guard cells.

The  pore is surrounded by cell wall which is  tough and flexible and the shape of guard cells differs in both monocots and dicots, and these Guard cells are bean-shaped and contain chloroplasts.

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Agglutination tests use particulate antigens while precipitation tests use soluble antigens. The statement is true.

The clumping of cells with the help of agglutinins is known as biological agglutination. Blood components called agglutinins cause agglutination. Antibodies and lectins are examples of agglutinins.

The phrase specifically refers to the bacterial cells that cluster in the presence of an antibody or a complement in microbiology and immunology. It might also apply to the foreign substances and cells that group together to keep them from interfering with the body's typical physiological functions. Therefore, agglutination is a crucial immunological response of the organism.

The medical consequences of the agglutination process make it essential to comprehend. For instance, the incorrect blood group should never be given to someone who needs a blood transfusion. Otherwise, blood cells will clump together, which could be catastrophic for the recipient.

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The event that must take place during interphase before a cell proceeds to division is that before progressing to the next stage, the cell must expand and carry out DNA replication.

What is DNA replication?

Cells copy DNA from the genome through a process called DNA replication. To ensure that each daughter cell has a complete genome, a cell must first duplicate (or replicate) its entire genome before dividing.

A newly synthesized (manufactured) strand and the original DNA molecule are both present in every DNA molecule. As a result, DNA replication is referred to as semiconservative.

Therefore, The event that must take place during interphase before a cell proceeds to division is that before progressing to the next stage, the cell must expand and carry out DNA replication.

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