Saliva, produced by glands in the mouth, plays an important role in the digestion of food. Saliva contains a chemical, called amylase, that breaks down starch in the food we eat. A scientist conducts an experiment to investigate at which temperatures amylase works the best. He hypothesizes that the reaction will occur fastest if the amylase reaction is conducted near the normal human body temperature of 37ºC (degrees Celsius). In order to test his hypothesis, the scientist measures the reaction rate, which is how fast the amylase breaks down the starch at six different temperatures. The reaction rate is rated on a scale of 0 to 10, with 0 meaning no reaction and 10 meaning the fastest reaction. The results are recorded in the data table.

AMYLASE REACTION RATE BY TEMPERATURE

Temperature (ºC)

Reaction Rate

0

2

20 4
40 10
60 8
80 2
100 0
Based on the data, should the scientist accept or reject his hypothesis?
A He should reject the hypothesis because amylase reacts at all temperatures.
B He should accept the hypothesis because amylase reacts only at body temperature.
C He should reject the hypothesis because amylase reacts faster above body temperature.
D He should accept the hypothesis because amylase reacts fastest near normal human body temperature and slower above and below normal human body temperature.

Answer:

both

Explanation:

depends on the person's personality I guess or how they act n all

I don't know many events in history but this one,

 How did slaves influence Americans?

Slaves were a big part of this society by growing with colonies and then greatly contributed to the economics of America, when the slaves were released or freed they brought upon expertise, agriculture, Music, Religions, and food.

That is one way they brought upon an influence.

Good Luck

Answer:

Proteins

3  Given Terms:

Carbohydrates

Any of a class of organic compounds that are polyhydroxy aldehydes or polyhydroxy ketones, or change to such substances on simple chemical transformations, as hydrolysis, oxidation, or reduction, and that form  the supporting tissues of plants and are important food for animals and people.

Proteins

Any of numerous, highly varied organic molecules constituting a large portion of the mass of every life form and necessary in the diet of all animals and other nonphotosynthesizing organisms, composed of 20 or more amino acids linked in a genetically controlled linear sequence into one or more long polypeptide chains, the final shape and other properties of each protein being determined by the side chains of the amino acids and their chemical attachments: proteins include such specialized forms as collagen for supportive tissue, hemoglobin for transport, antibodies for immune defense, and enzymes for metabolism.

Fats (Also known as Lipids)

Any of a group of organic compounds that are greasy to the touch, insoluble in water, and soluble in alcohol and ether: lipids compromise the fats and other esters with analogous properties and constitute, with protein and carbohydrates, the chief structural components of living cells.

The macronutrients are any of the nutritional components of the diet that are required in a relatively large amounts: protein, carbohydrate, fat, and the macrominerals.

The dark meat of turkey tends to contain more vitamins but also has more fat and calories. Turkey contains the amino acid tryptophan. This is said to be the cause of people wanting to nap after a big Thanksgiving dinner.

An egg is the roundish reproductive body produced by the female of certain animals, as birds and most reptiles, consisting of an ovum and its envelope of albumen, jelly, membranes, egg case, or shell, according to species.

Proteins represents the major functional components of dairy products when used as food ingredients.

Taking a close analysis of each macronutrient present in each of the given examples, the answer is concluded to be proteins.

Answer:

The answer is proteins.

Explanation:

Hope this helps!!

The food group that covers half the plate providing dense sources of nutrients and phytochemicals is defined by Fruits and Vegetables.

Nutrients are specific chemical substances derived form daily diet (e.g., carbohydrates, proteins and fats). while phytochemicals are nutrients obtained from plant sources.

Phytochemicals have proved to be very useful chemical substances with roles as antioxidants for cells, thereby they are being increasingly used in medicine and nutrition.

In conclusion, the food group that covers half the plate providing dense sources of nutrients and phytochemicals is defined by fruits and Vegetables.

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As a result, they must be derived from food. Histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine are the nine essential amino acids. Amino acids are organic chemicals.

Carbon-hydrogen bonds are found in organic chemicals. All amino acids have the same basic structure. A central carbon atom is linked to a basic amino group, a carboxylic acid group, a hydrogen atom, and an R-group, or side-chain group, in each molecule.

The primary function of amino acids is to serve as protein building blocks. Proteins are typically made up of 50 to 2000 amino acids that are joined end-to-end in a variety of different ways. Each protein has a distinct amino acid sequence in its twisted and folded configuration.

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Answer:

D. Trough

Explanation:

Answer:

Your answer is a Trough

Explanation:

The statement complete dominance occurs when phenotypes of the heterozygous and dominant homozygote are identical is a False statement.

Complete dominance is a concept in genetics that occurs when the phenotype of a heterozygous genotype is the same as that of the dominant homozygous genotype. However, this statement is not always true. Although complete dominance is the most frequent mode of inheritance, there are other ways in which genes can interact with one another to determine the phenotype of the offspring.

Therefore, the statement "complete dominance occurs when phenotypes of the heterozygous and dominant homozygote are identical" is a false statement.

The blossoms on Mendel's pea plant are an illustration of complete strength, or when the predominant allele totally conceals the latent allele. Scientists have also discovered codominance, in which both alleles are present, and incomplete dominance, in which there is a blending.

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Answer:

systolic

Explanation:

how much pressure is in your arteries

Answer:

What makes human hands unique? ... This long thumb and its ability to easily touch the other fingers allow humans to firmly grasp and manipulate objects of many different shapes. The human hand can grip with strength and with fine control, so it can throw a baseball or sign a name on the dotted line.

Humans, as well as monkeys, gorillas, and other primates, have a hand that can grip and grasp objects because they have an opposable thumb. The earliest primates were arboreal (they climbed trees), and so having grasping hands was an advantage in this environment. Human thumbs modified their ancestors’ opposable thumbs, making them more mobile and thus even more opposable.

Answer:

Explanation: In the SIR model , the time to recover depends on several factors ,s

uch as the characteristics of the disease, effectiveness of treatment and the individual's immune response. The variable y is not typically used in SIR , so it is unclear how it relates to the time recover .

 In SIR model, the recovery rate is reperesented by " 1/ gamma" Where gamma is a recovery rate . The recovery rate is the inverse of the average duration of the infectious period. So, if the infectious period is 5 , then the recovery rate would be 1/5 or 0.2.

Answer: The right answer is B

Explanation:

The cohesion and adhesion of water molecules prevent the force of gravity from overcoming transpirational pull in plants.

Transpirational pull is the process by which water is pulled up from the roots to the leaves of a plant against the force of gravity. This process relies on the cohesion and adhesion properties of water molecules. Cohesion refers to the attraction between water molecules, causing them to stick together, while adhesion refers to the attraction between water molecules and the surfaces of plant tissues.

The cohesive forces between water molecules create a continuous column of water within the plant's xylem vessels, allowing water to be pulled upwards. The adhesion of water molecules to the walls of the xylem vessels further helps in countering the force of gravity.

As water is lost through transpiration from the leaves, it creates a negative pressure gradient that pulls water molecules up from the roots. The cohesive and adhesive properties of water ensure that this transpirational pull is maintained, preventing the force of gravity from overcoming it.

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Answer:

What causes sand to move along a beach?

Sand grains move along the shore and up and down beaches because of currents made by waves. Waves break when they reach shallow water, creating turbulence. This area is called the surf zone. When waves break, some of the force is turned into currents

The natural features that are important in the transfer of sand from one side of an inlet to the other may include weathering and erosion.

Sand grains move along the shore and up and down beaches because of currents made by waves. Waves break when they reach shallow water, creating turbulence. This area is called the surf zone. When waves break, some of the force is turned into currents.

Most beaches get their sand from rocks on land. Over time, rain, ice, wind, heat, cold, and even plants and animals break the rock into smaller pieces. This weathering may begin with large boulders that break into smaller rocks. Water running through cracks erodes the rock. They also prevent seawater from entering wells and ponds.

Therefore, the natural features that are important in the transfer of sand from one side of an inlet to the other may include weathering and erosion.

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starch is polysacchariide of glucose, which is a simple sugar l.e.monosaccharide. food is astored in plants in form of starch mostly. glycogen is another polymer of glucose. excess food i.e. glucose is stored in form of glycogen in animals.

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Adhesion is the tendency of multiple debris or surfaces to dangle to at least one some other. The binding of a cell to some other cell, or a cell to a surface, through unique cell adhesion molecules.

A fibrous band of scar tissue that binds collectively usually separate physical structures. Cohesion and adhesion are  water houses that describe how water molecules have interaction with every different. and the way water molecules have interaction with different such things as leaves or maybe you. Cohesion method that water likes to paste to itself. and adhesion method that water likes to paste to different things.

Adhesive Bonding is the system of becoming a member of  surfaces collectively, typically with the advent of a clean bond. This may also contain using glue, epoxy, or certainly considered one among a huge variety of plastic dealers which bond both via the evaporation of a solvent or via curing through heat, time, or pressure.

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Options are not given properly.

The term used to describe food chains that overlap and intersect is "food web."

A food web represents the complex network of interactions between different species in an ecosystem, illustrating the flow of energy and nutrients through multiple interconnected food chains. In a food web, organisms are linked together in a more realistic and intricate manner than in a simple linear food chain. It recognizes that most organisms have multiple food sources and are both predators and prey, leading to a complex web-like structure of interdependencies.

A food web is a visual representation of the various feeding relationships and interactions between different species within an ecosystem. It depicts the flow of energy and nutrients as organisms consume and are consumed by others. Unlike a simple food chain that follows a linear sequence of "who eats whom," a food web takes into account the interconnectedness and complexity of nature.

In a food web, organisms are represented as nodes or points, and the links or arrows between them indicate the transfer of energy and matter. Each organism can occupy multiple positions within the web, functioning as both a predator and a prey for various other organisms. This interconnectedness reflects the reality that most species have diverse diets and interact with multiple trophic levels in the ecosystem.

A food web consists of producers, consumers, and decomposers. Producers, such as plants and algae, convert sunlight into energy through photosynthesis, forming the base of the web. Primary consumers, often herbivores, feed on the producers. Secondary consumers prey on primary consumers, and tertiary consumers feed on secondary consumers, forming higher trophic levels.

However, the complexity of a food web extends beyond simple linear relationships. It incorporates various trophic levels, including omnivores that consume both plants and animals, as well as detritivores and decomposers that break down organic matter. Additionally, some organisms may occupy different trophic levels at different life stages or exhibit seasonal variations in their feeding habits, further adding to the intricacy of the web.

By studying food webs, ecologists can gain insights into the stability, dynamics, and resilience of ecosystems. Changes or disruptions in one part of the web can have ripple effects throughout the system, affecting multiple species and ecological processes. Understanding these interactions helps in assessing the impacts of human activities, predicting the consequences of species loss, and developing conservation strategies to preserve the delicate balance of ecosystems.

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According to the question, the value of Q is found to be greater than the value of P.

Density may be defined as a type of physical property that significantly deals with the description of how much space an object or substance takes up with respect to the amount of matter in that object or substance.

In a more simple sense, it is characterized as the measurement of quantity or mass per unit of volume in a particular substance.

According to the question,

The density of silver is 19.3 g/cm3 while the density of iron is 7.8 g/cm3 when the mass remains equal. With this source of information, it is found that the density of silver is greater than that of iron. Hence, the value of Q must be greater than the value of P. This is because silver is a heavy metal has resistant to corrosion also known as a noble metal.

Therefore, the value of Q is found to be greater than the value of P.

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Answer:

The secondary consumer is the owl!

Explanation:

The mouse is the primary consumer. Then the second consumer is the owl! (See? How those words are similar? Secondary and second.) Therefore the owl is the secondary consumer. Hope this helps! <3

The correct option is C; The population reached carrying capacity and stabilized .

If a species' population surpasses its carrying capacity, the ecosystem may become unfit for survival. If the population outnumbers the carrying capacity for an extended length of time, resources may be destroyed totally. If all resources are depleted, populations may perish.

Biologists frequently use graphs to demonstrate population growth patterns. An "s" shaped graph shows that the population has reached its carrying capacity. In this logistic (S-curve) model, population growth is proportional to population size but also to available resources. Limited resources cause competition and poorer growth rates at increasing population densities. Ultimately, the population stabilizes and the growth rate falls to zero.

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DNA is important in identifying genetic relationships within a group, but it alone is not sufficient to determine complex social constructs like race, whiteness, or property; the inclusion of social, cultural, and historical factors is crucial in understanding these concepts.

Biological anthropologists and genome scientists should consider the relationship between Europeans and Indigenous people in their research to provide a more comprehensive understanding of human genetic diversity and population history.

DNA analysis can provide valuable insights into genetic relationships within a group, such as determining genetic ancestry or identifying related individuals. However, race, whiteness, and property are social constructs that go beyond genetic factors and are shaped by historical, cultural, and socioeconomic factors. These concepts are complex and cannot be solely explained by genetic data. Therefore, it is important for researchers, including biological anthropologists and genome scientists, to recognize the limitations of genetic data and consider the broader social context when studying race, whiteness, and property.

In the context of researching Europeans and Indigenous people, it is crucial for researchers to acknowledge and incorporate the historical and ongoing relationships between these groups. This includes understanding colonization, displacement, and the impact of power dynamics on genetic diversity and health outcomes. By including this relationship in their research, scientists can contribute to a more accurate and nuanced understanding of human genetics and promote social and scientific equity.

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Glycolysis is the metabolic pathway that breaks down glucose into two molecules of pyruvate. This process occurs in the cytoplasm of cells and is the first step in both aerobic and anaerobic cellular respiration.

During glycolysis, glucose is converted into two molecules of pyruvate through a series of enzymatic reactions. This process involves the investment of two ATP molecules, which are used to activate glucose and convert it into a more reactive molecule that can be further broken down. The breakdown of glucose ultimately yields four ATP molecules and two molecules of NADH, which can be used to generate more ATP through oxidative phosphorylation in the mitochondria.

Glycolysis is a highly conserved metabolic pathway that is present in most living organisms, from bacteria to humans. It is an important process for providing energy to cells and is a key target for therapeutic intervention in metabolic disorders and diseases such as cancer.

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Answer:

hey Rebecka the answer is in the photos. thank me later, also you should cut me some cucumbers  

Explanation:

Plant cells are different from the animal cells in their basic structure such as the cell wall which is absent in the animal cell, chloroplast is also found in the plant cell which is not present in animal cell.

Plant cells have a rigid cell wall, a large central vacuole, and plastids such as chloroplasts. The cell wall is a layer which is present outside the cell membrane and surrounds the cell, it provides the structural support and protection.

The central vacuole is present in the plant cell and it maintains turgor pressure against the cell wall. The central vacuole is a large vacuole found inside of plant cells. It is a sphere which is filled with fluid and molecules inside a cell. The central vacuole stores water.

Chloroplasts are the organelles which are responsible for the process of  photosynthesis, are in many respects similar to mitochondria. Both the organelles including chloroplasts and mitochondria function to generate metabolic energy, evolved by endosymbiosis, and also contain their own genetic systems, and replicate by division.

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Your question is incomplete, most probably the complete question is:

Learn and recognize the basic structures of a plant cell.

Answer:

Explanation:

Energy is transferred through an ecosystem in steps, making up a food chain or a food web. At the bottom of the chain are the primary producers, which absorb sunlight and use the light energy to convert carbon dioxide and water into carbohydrates (long chains of sugar molecules) and eventually into other biochemical molecules, by photosynthesis.

The primary producers support the consumers—organisms that ingest other organisms as their food source. Finally, decomposers feed on decaying organic matter, from all levels of the web. Decomposers are largely microscopic organisms (microorganisms) and bacteria.

The food web is really an energy flow system, tracing the path of solar energy through the ecosystem. Solar energy is absorbed by the primary producers and stored in the chemical products of photosynthesis. As these organisms are eaten and digested by consumers, chemical energy is released. This chemical energy is used to power new biochemical reactions, which again produce stored chemical energy in the consumers' bodies.

Energy is lost at each level in the food web through respiration. You can think of this lost energy as fuel burned to keep the organism operating. Energy expended in respiration is ultimately lost as waste heat and cannot be stored for use by other organisms higher up in the food chain. This means that, generally, both the numbers of organisms and their total amount of living tissue must decrease greatly up the food chain. In general, only 10 to 50 percent of the energy stored in organic matter at one level can be passed up the chain to the next level. Normally, there are about four levels of consumers.

A food chain or a food web is made up of the stages through which energy is moved across an ecosystem. The primary producers are found at the bottom of the food chain.

By photosynthesis, they transform carbon dioxide and water into carbohydrates (long chains of sugar molecules) and ultimately into other biological compounds.

The consumers are organisms that consume other organisms as food—are supported by the primary producers. Decomposers, who feed on decaying organic materials from all tiers of the web, are the last group. The majority of decomposers are bacteria and tiny organisms.

The food web actually follows the route of solar energy through the environment and is a system of energy flow.

Therefore, A food chain or a food web is made up of the stages through which energy is moved across an ecosystem. The primary producers are found at the bottom of the food chain.

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A bacterial strain exhibiting a unique RNA polymerase structure would most likely inhibit the activity of the rifampin antibiotic.

RNA polymerase is an enzyme that participates in DNA transcription, which is the procedure of transcribing DNA sequences into RNA sequences. RNA polymerase, like other polymerases, creates polymers from a monomer. RNA polymerase catalyzes the addition of nucleotides to the 3'-end of a growing RNA chain by reading the template DNA strand, therefore synthesizing a complementary RNA strand according to the base-pairing rules.

Antibiotics and RNA polymerase structureBacteria have various mechanisms of resistance to antibiotics, which include changing the target of the antibiotic, reducing antibiotic influx or increasing antibiotic efflux, and altering the antibiotic. Rifampin, on the other hand, has a unique mechanism of action. Rifampin is a bactericidal antibiotic that targets RNA polymerase, a bacterial enzyme responsible for gene transcription that converts DNA into mRNA.

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Answer: norepinephrine

Answer:

insufficient knowledge of rules and nomenclature

solution: stop allowing people to self publish discoveries

Answer:

Explanation:

Beta blockers slow the heart rate, which can prevent the increase in heart rate that typically occurs with exercise. This means that it might not be possible for you to reach your target heart rate — the number of heartbeats per minute you typically aim for to ensure you're exercising hard enough.

Explanation:

For any enthalpy change in a chemical reaction, (exothermic/endothermic), the activation energy must be reached so as to break the strong chemical bonds between the reactant molecules.

The activation energy must be REACHED before a chemical reaction can begin.

A chemical reaction can be defined as a process where one or more substances called reactants, are converted to one or more products of that reaction.

The activation energy is the minimum amount of energy required to carry out a chemical reaction.

The higher the activation energy of a given chemical reaction, the slower this reaction will be.

An enzyme is a biological catalyst that helps to perform a chemical reaction by lowering its activation energy.

In conclusion, the activation energy must be REACHED before a chemical reaction can begin.

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