Answer:
First, you chew the bread in your mouth which contains complex carbohydrates like starch and cellulose. In your mouth, your salivary glands are specialised cells in glands to produce a carbohydrase enzyme like amylase in your saliva. Amylase partially breaks down carbohydrates like starch which is a big food molecule that cannot be digested. It breaks down into a smaller molecule that can be digested into maltose. This is carried out by a process like the lock and key theory. The enzyme, amylase has an active site where the substrate, in this case being the carbohydrate, binds to the enzyme because it fits the certain shape. The reaction then takes place rapidly as the substrate is catalysed. Products are released from the surface of the enzyme because it breaks up the large molecule into smaller ones and the enzyme is ready to be used again.
The partially broken up food then travels down your gullet and into the stomach where it's lined with millions of glands that produce the enzyme, pepsin and hydrochloric acid. The right pH levels are needed for the enzymes to work best in like pepsin (pepsin breaks down proteins and not carbohydrates) but hydrochloric acid kills bacteria in the food.
Some enzymes that catalyse digestion are made in the pancreas, like amylase. The pancreas secretes the digestive juices onto the food which breaks it down further. Depending on the size and type of meal, the food then leaves your stomach and moves onto the small intestine. As it moves into the small intestine, bile (which is produced in the liver) is squirted onto the food through the bile duct. The bile neutralises the acid that was added to the food by the stomach. This provides the alkaline conditions necessary for the enzymes in the small intestine to work most effectively.
The food then travels through the small intestine where amylase further breaks down the food molecules into smaller, soluble ones which can be absorbed into your bloodstream. The small intestine is adapted to have a very large surface area and is covered in villi. Villi are adapted to have large surface area and are only one cell thick so nutrients only have a short distance to diffuse into the blood. It also has a good blood supply to the blood vessels. This greatly increases diffusion and active transport from the small intestine to the blood.
Finally the muscular walls of the small intestine squeeze the undigested food into the large intestine. water is absorbed from the undigested food into your blood. The material left forms the faeces. Faeces are stored and then pass out of your body through the rectum and anus back into the environment.
Explanation:
Bread mainly contains carbohydrates. Hence, they are converted into monosaccharides for absorption.
How do carbohydrates digests in our bodies?Digestion of carbohydrates starts from the mouth. After chewing and converting into small particles, it gets mixed with the salivary amylase enzyme present in the saliva. Then it reaches the stomach and then the small intestine where pancreatic amylase breaks down carbohydrates into disaccharides.
These disaccharides break down into monosaccharides by enzymes present in intestinal juice, such as sucrase breaking down sucrose into glucose and fructose, and maltase breaking down maltose into glucose. Then it is transferred to the bloodstream through the villi.
Hence, this is how carbohydrates are digested in our bodies.
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which of the following best explains why organisms of the same species that become isolated eventually become different from each other over time
Answer: They are exposed to different environments
When animals are isolated from each other and put in different environments, they react to their environment differently and this causes them to adapt differently.
Planets in our solar system travel in their own orbital paths around the Sun. What causes the planets to continuously orbit the Sun instead of floating away into space?
A)
Not enough room is available in space for planets to float freely.
B)
The planets' magnetic poles prevent them from leaving their orbital paths.
C)
Gravitational pulls of planets' moons are too strong for planets to float away.
D)
The Sun's large mass causes it to have significant gravitational force, holding planets in their orbital paths.
The Answer is D. The sun's large mass causes it to have significant gravitational force, holding planets in their orbital paths. The moon does not effect this pull, as the sun's pull is much stronger than the moon's. The moon is responsible for the tides of the Earth, and it in fact rotates around us.
Answer:
The Sun's large mass causes it to have significant gravitational force, holding planets in their orbital paths.
Explanation:
Scientists have long established that the solar system is held together by the gravitational force of attraction between the bodies in space.
According to scientists, the magnitude of the gravitational force of attraction depends on the relative masses of the bodies. The larger the masses of the bodies the greater the gravitational force of attraction.
Hence the large mass of the sun causes it to have a large and significant gravitational pull on the planets thereby holding them in their orbital parts.
there is a sudden increase in the nimber of herbivorous fish due to the migration of some carnivorous fish from the river what effect will this have on primary producers and NPP
Which natural process can change the Earth's surface through glaciers, wind, and flooding? A. earthquake B. tornado C. erosion D. mudslide
erosion is the best option for all of these
Which of the following are true statements regarding cellular respiration
The answer would be D) Chemical energy, in the form of glucose and oxygen, is the primary source of energy.
Cellular respiration happens in all organisms, primarily using glucose and oxygen supplied by photosynthesis. It takes place in several stages including glycolysis, the Krebs cycle, and oxidative phosphorylation. However, the type of molecules used may vary slightly among different organisms.
Explanation:The process of cellular respiration involves the production of adenosine triphosphate (ATP) through the oxidation of glucose. This process occurs in all organisms and is tailored to the use of glucose and oxygen, provided chiefly by photosynthesis.
Cellular respiration occurs through several stages, including glycolysis, the Krebs cycle, and oxidative phosphorylation, and it mainly happens in the mitochondria of eukaryotic cells or the cytoplasmic membrane of prokaryotes.
It's key to note that not all organisms perform cellular respiration in the same way or with the exact same resources. For example, while some organisms may use lipids in the absence of glucose, it is accurate to say that the majority of organisms employ the process generally as stated in the option: 'All organisms perform cellular respiration, using oxygen and glucose, which are produced by photosynthesis.'
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What genetic change allows organisms to survive natural selection in their environment
According to Charles Darwin's theory of evolution by natural selection, organisms that possess heritable traits that enable them to better adapt to their environment compared with other members of their species will be more likely to survive, reproduce, and pass more of their genes on the next generation.
What genetic change allows organisms to survive natural selection in their environment ?
The answer is Adaptations
Polar bears give birth and hunt on sea ice. Which of the following would help polar bears survive during the melting of Arctic ice?
Growing another layer of fur during summer
Migrate inland to search for different food sources
Staying put until the ice refreezes
Sticking to the usual diet of seals
The answer has been searching for the novel prey. The melting of Arctic ice is reducing the ice sheet that polar bears use as a platform to hunt seals.
What is a food web?A food web has been basically the graphical representation of which the individual eats what in an ecological community that has been composed by the innately interconnection of the food chains. The food web has been also known as the consumer-resource system.
With the ice receding earlier in the spring and forming later in the winter, bears have less time to hunt prey and it must go without food for longer periods of the time. Researchers discovered that has been lead to the decline in the body condition and the lower average weight in the adult females. According to the scenario, the declining the female polar bear health the contributes to the decrease in the polar bear offspring survival.
Therefore, The answer has been searching for the novel prey. The melting of Arctic ice is reducing the ice sheet that polar bears use as a platform to hunt seals.
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Polar bears would most likely survive the melting of Arctic ice by migrating inland to search for different food sources. This strategy would help them adapt to the changing environment and find alternative means of sustenance. Therefore, option b is correct
- Adaptation to changing environments: As sea ice melts, polar bears' traditional hunting grounds and birthing areas are diminished. Migrating inland allows them to explore new territories and find alternative food sources.
- Diversification of diet: By moving inland, polar bears can potentially diversify their diet, which might include terrestrial animals, vegetation, or other available resources, rather than relying solely on seals.
- Avoiding dependency on sea ice: Staying put until the ice refreezes or sticking to the usual diet of seals would not be sustainable strategies as they depend heavily on the presence of sea ice, which is rapidly decreasing.
- Enhanced survival chances: Growing another layer of fur would not address the primary issue of food scarcity. Migration and dietary adaptation are more practical and immediate solutions for survival in a warming Arctic.
Where do animals obtain their chemical energy from
From the food they intake in different ways such as Plants or other animals such as insects which are their fuel
Final answer:
Animals obtain chemical energy from food molecules like glucose through the process of cellular respiration, which transforms energy stored in food into ATP.
Explanation:
Chemical Energy in Animals
Animals obtain their chemical energy primarily from the food they eat. Unlike plants, animals cannot produce energy through photosynthesis, so they get their energy from food molecules like glucose. This process is known as cellular respiration, where energy stored in food is converted into a usable form, ATP. Cellular respiration can be either aerobic, involving oxygen, or anaerobic, without oxygen. The primary components of food that provide this energy are carbohydrates, fats, and proteins.
Organisms that cannot perform photosynthesis, like animals, depend on the consumption of other organisms to meet their energy requirements. They rely on a process that extracts the energy necessary to sustain their metabolism and to fuel their bodily functions such as muscle movement and cellular processes.
A deciduous forest biome is?
A deciduous forest is a biome dominated by deciduous trees which lose their leaves seasonally. The Earth has temperate deciduous forests, and tropical and subtropical deciduous forests, also known as dry forests. Another name for these forests is broad-leaf forests because of the wide, flat leaves on the trees. Trees in tropical deciduous forests lose their leaves in the dry season and regrow them in the rainy season. In temperate deciduous forests, trees lose their leaves in the fall and regrow them in the spring.
How might a bear be influenced by external factors in its environment?
Answer:
Environments are constantly changing and animals can often adapt to these changes. Climate change also is forcing animals to interact with each other in new ways. For example, as the sea ice melts,polar bears spend more time on land, which brings them into greater contact with brown bears.
Which two of the following choices are examples of commons?
Answer:
National parks and ground water
Explanation:
In the given choices example of commons are national park and ground water. 'Commons' means public goods, which can be used by every person of the country. And such things are state owned. Use of ground water is a human right. Public goods can be used by everybody without discrimination such as:- rich- poor, male-female, etc. On the other hand private things are owned by an individual.
Answer:
national park ; ground water
Explanation:
A solution is a mixture of
A solution is a mixture of different substances
Explanation:A solution is a homogeneous mixture of two or more substances. It consists of a solute and a solvent. For example in a solution in which carbon dioxide is dissolved in water, the water is the solvent and the carbon dioxide is the solute. Different types of solutions have solvents and solutes in different phases. Some examples of solutions are salt water, rubbing alcohol, and sugar dissolved in water.
In shorthorn cattle, when a cow with a solid red coat color mates with a cow with a solid white coat color, they always produce offspring with a roam (both red and white) coat color. This is an example of what type of inheritance pattern?
This is codominance, as far as i know. I am 89% sure
The inheritance pattern of coat color in shorthorn cattle is an example of incomplete dominance.
How do we explain?Incomplete dominance is a type of inheritance in which the heterozygous offspring (the offspring that inherits one allele from each parent) has a phenotype that is intermediate between the phenotypes of the homozygous parents (the parents that have two identical alleles for the trait).
In shorthorn cattle, the allele for red coat color (R) is dominant over the allele for white coat color (W). However, the heterozygous offspring (RW) does not have a solid red or solid white coat color. Instead, it has a roan coat color, which is a mixture of red and white hairs.
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Which of the following statements best describes a neutron's charge?
1. A neutron has a positive electrical charge.
2. A neutron has no electrical charge.
3. A neutron has a negative electrical charge.
4. It is unknown whether or not a neutron has an electrical charge.
A neutron has no charge
NEUTRAL = NONE
well thats how I remember it anyway
SO ITS NUMBER 2
A neutron has no electrical charge and is electrically neutral. Neutrons are part of the atom's nucleus alongside protons and provide mass to the atom without influencing its net electric charge.
The correct answer is that a neutron has no electrical charge. Neutrons, like protons, reside in the nucleus of an atom. While protons have a positive electrical charge, and electrons have a negative electrical charge, neutrons are electrically neutral. The neutron's lack of charge means that it does not contribute to the electrical characteristics of an atom. Essentially, neutrons provide mass without affecting the charge.
It is noteworthy that although a neutron itself is uncharged, it is composed of smaller particles called quarks, which do have electric charges. However, the sum of the charges of the quarks inside a neutron is zero, which is why the neutron is electrically neutral.
If two parents are going to have one child, the percent probability of having a girl is _____ and the percent probability of having a boy is _____. A. 25%; 75% B. 50%; 50% C. 75%; 25%
If two parents are going to have one child, the percent probability of having a girl is 50% and the percent probability of having a boy is 50%.
So the correct answer is B. 50% ; 50%
Hope this helps,
Davinia.
Depends on how strong the dominant trait is. However, in this question, the answer is B
compared to the jovian planets in our solar system , earth is
There is no comparation point due to the earth is a solid planet with atmosphere and the jovian planets all together composed by gas.
Best regards
Which statement best describes an ethical concern related to genetic engineering
The answer should be People should not be intentionally manipulating the genes of organisms.
An interaction between two abiotic factors would be
A a bear catching a salmon
B lightning strikes a tree
C the sun warms the ground D a bee on a flower
C) the sun warms the ground.
Which organism has fur and mammary glands, but does NOT have opposable thumbs?
Answer:
An organism that has fur and mammary glands but does not have opposable thumbs is a **cat**. Cats have fur covering their bodies for insulation and protection, mammary glands for nursing their offspring, but they lack opposable thumbs.
Which of these is included under land use? Water,rocks,soil,trees,applying pesticides.
Applying pesticides is the answer!
Land use refers to how humans and the environment interact on a particular piece of land, encompassing the utilization and management of water, soil, trees, and the application of pesticides. While rocks are part of the natural landscape, they are less impactful in terms of direct human land utilization.
Land Use and Its Components
When we talk about land use, we refer to how humans utilize various elements of the natural environment on a piece of land. Common examples of land use include residential areas, commercial spaces, agricultural fields, and recreational grounds. Within these categories, land use encompasses aspects such as water, soil, and trees, which are integral to the support and development of different land functions.
In agricultural practices, the application of chemicals like pesticides directly impacts land use. These chemicals, which include fertilizers, herbicides, and pesticides, are used to enhance crop growth and protect against pests and diseases. However, they can be toxic to humans and wildlife and may lead to environmental issues like soil degradation and water pollution.
It's important to note that while rocks are a natural component of the land, they are typically not considered under the umbrella of land use since they do not directly influence how the land is utilized by humans in the same manner as the management of water, soil, and biological resources. Nevertheless, rocks can indirectly affect land use decisions through their influence on landscape and soil composition.
Ultimately, land use decisions are influenced by various factors, including environmental health, economic needs, and political considerations. Effective land management seeks to balance these elements through practices like building and maintaining healthy soil, minimizing the use of pesticides, and integrating native plants to support ecological balance and reduce the impact of invasive species.
The carrying capacity for a population within an ecosystem describes the number of organisms that can be supported by the resources available within the ecosystem over a period of time. Which event might increase the carrying capacity for rabbits in a prairie ecosystem?
A) A decrease in vegetation
B)a period of drought
C( A season of extra rain
D) A new predator species moving in
The correct option is C, that is, A SEASON OF EXTRA RAIN.
The carrying capacity for a population within an ecosystem gives us information about the number of that particular specie that the ecosystem can support. There are many factors that can increase or decreases the carrying capacity of an ecosystem.
In the scenario given in the question, a season of extra rain will increase the carrying capacity of the population, this is because, a season of extra rain will bring about extra bountiful growth of grasses, which will serve as food to the population, thus, there will be an increase in the quantity of food resources that are available, this is in turn will increase the carrying capacity of the population.
which recent discovery led to a new understanding of how genetic mutations increase the risk of cancer
The discovery of BRCA1 and BRCA2
genes led to a new understanding of how genetic mutations increase the risk of
cancer is. Mutations in the genes BRCA1 (breast
cancer gene 1)
and BRCA2 (breast cancer gene 2) increase a woman's risk of developing breast
or ovarian cancer. BRCA mutations account for about 5% of all breast
cancers and 4%–11% of all ovarian cancers.
The correct answer between all
the choices given is the second choice or letter B.
How does the Carbon cycle work?
The carbon cycle is the process in which carbon moves throughout an environment.
Final answer:
The carbon cycle is a process where carbon moves between reservoirs in the biosphere, with organisms playing a crucial role in both releasing and recycling carbon. Recycling carbon is important for the formation of essential biomolecules.
Explanation:
The carbon cycle is a process through which carbon moves from one reservoir to another in the biosphere. Organisms play a crucial role in this cycle as they both release and recycle carbon.
During cellular respiration, organisms release carbon into the atmosphere as carbon dioxide. On the other hand, producers like plants remove carbon dioxide from the atmosphere during photosynthesis and use it to create organic carbon compounds.
Recycling carbon is important because carbon is the cornerstone of organic compounds necessary for life. While organisms do not make their own carbon, they obtain it by recycling carbon from other living organisms and from the atmosphere. This recycling ensures the availability of carbon for the formation of essential biomolecules.
Clouds are formed when water vapor cools and condenses in a liquid state. Eventually, the air in the cloud becomes saturated with water. The water droplets that create the cloud combine, forming larger droplets which become heavier. What happens next?
A.
The water is absorbed into the atmosphere.
B.
The water's weight causes the cloud to move, which we feel as wind.
C.
The water droplets fall to the Earth as rain.
D.
The water droplets evaporate and become water vapor again.
C. The water droplets fall to the Earth as rain.
Hello im X haven't seen you around but your answer would be
C because the could would get to heavy that it would be force to precipitate witch would also be called rain
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Which term describes the living and non living things in an area
The living organisms in an ecosystem are called biotic factors whereas the non living are called abiotic
examples include:
abiotic: rain, wind, sunlight, and soil
biotic: trees, animals, and fungi
can someone help me answer these questions too pleasee
The main message is about the bio engineered fish, and how it could affect the environment.
Arguments about how the FDA is keeping it secure and sterile prove to make it a good meal.
A stakeholder would be the FDA, and the Aqua-advantage.
The writers attitude may be to inform the readers about this new product that is coming out, and giving little tips on what its origin is.
How can a rise in temperature cause a change in a polar ecosystem
Sea levels would rise.
Increase in temperature (for example due to global warming) increases the rate of melting of polar ice.
Consequently, the sea levels of the polar ecosystem would increase.
In addition, the melting of the ice caps also increases the temperature of the water in the oceans. As a result, the water expands which also increases the sea levels.
Mark as brainiest please
How can a rise in temperature cause a change in a polar ecosystem?
(A) Sea levels would rise.
(B) Sea levels would fall.
(C) Sea levels would stay the same.
(D) Sea levels would fluctuate.
Answer: (A)
Explanation: The first person who said it was right, and it is correct.
PLZ HURRY IT'S URGENT!!!
Which best explains the bonding behavior of the family of elements in the Periodic table called metals? A. Metals tend to form bonds by sharing electrons. B. Metals have complete outer shells, so they rarely form bonds. C. Metals tend to form bonds by gaining electrons. D. Metals tend to form bonds by giving up electrons.
Final answer:
Metals form bonds by giving up electrons, creating a sea of delocalized electrons that allow for metallic bonding, responsible for metals' distinctive properties such as conductivity and malleability.
Explanation:
The correct answer to this question about the bonding behavior of metals is D. Metals tend to form bonds by giving up electrons. In metallic bonding, atoms of metals lose their valence electrons into a shared 'sea' throughout the solid. This allows metals to conduct electricity and heat due to the delocalized electrons that freely move through the structure. The metallic bonds formed between metal atoms allow for their characteristic properties, such as malleability, ductility, and high electrical and thermal conductivity. Furthermore, the malleability and ductility of metals find their origins in the resilient metallic bonds that bind atoms together, underscoring the multifaceted nature of metallic bonding.
Need help writing hypothesis.
I am going to experiment on water by testing the PH for its acidity
i will use different types of water some with lemons/baking soda some from local ponds
basically im trying to find the acidity in all the waters and how it affects the ph and why ph is important for mainting balance.
The student's experiment involves testing the pH(evaluating the acidity) of different types of water. A suitable hypothesis would state an expected relationship between acidity of the water and its pH level, for example, an increase in acidity would decrease the pH. Understanding the pH of water is crucial as it can significantly affect the survival of aquatic organisms.
Explanation:It sounds like you're conducting an experiment on water acidity by testing the pH levels of different types of water to figure out how different factors influence it. A suitable hypothesis for this study could be: 'If a solution's acidity increases, then the pH will decrease. This is due to the fact that pH is a measure of how acidic or basic a solution is. Waters with higher amounts of lemons or baking soda, which are acidic or basic, respectively, will have a lower pH value than waters from local ponds or other natural sources.'
Why is pH important to maintain balance? Essentially, pH levels can have significant impacts on life. For example, most organisms have a certain pH range in which they thrive, and drastic changes can lead to adverse effects or death. Similarly, for aquatic life, the water's pH level must typically stay within a certain range for the organisms to survive. Therefore, understanding and monitoring pH is crucial for ecological health and balance.
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Three metal spheres are placed next to each other as shown in the picture. A has two times the mass of B. C has one-third the mass of A. The distance between A and C is half that between A and B. Given these conditions, which statement is true? A) The gravitational force between A and B is one-third that between A and C. B) The gravitational force between A and B is two-thirds that between A and C. C) The gravitational force between A and B is three-eighths that between A and C. D) The gravitational force between A and B is four- sevenths that between A and C.
The gravitational force between A and B compared to A and C is three-eighths, calculated by the ratio of the product of their masses and the square of their distance apart, according to Newton's law of universal gravitation.
The question involves gravitational force, which can be calculated using Newton's law of universal gravitation. This law states that the gravitational force (F) between two masses (m1 and m2) is directly proportional to the product of their masses and inversely proportional to the square of the distance (r) between them. The formula is:
F = G * (m1 * m2) / r2, where G is the gravitational constant.
Given that sphere A has twice the mass of sphere B, and sphere C has one-third the mass of A, we can assign mass values relative to B (e.g., A = 2B, C = 2/3B). Since the distance between A and C is half that between A and B, the force between A and C is affected by the square of this factor (1/2)2 = 1/4.
Thus, the force between A and C is stronger by a factor of 4 relative to the force between A and B.
By comparing the ratio of the two forces given the masses and distances, we can find that the gravitational force between A and B is actually three-eighths that between A and C (since (2B*C)/(B*2B) times 4 (the factor from the distance being halved) simplifies to 3/8). Therefore, the correct answer is C) The gravitational force between A and B is three-eighths that between A and C