The internal surface of the stomach is covered with multiple folds that increase the surface area of the organ. These folds are called rugae.
Rugae help with the stomach's functions, such as expanding and contracting to accommodate and mix food during digestion. The ridges that increase the surface area of the stomach are called Rugaes. It helps to stretch out to increase stomach volume when the stomach is full. Its main purpose is to allow for the expansion of the stomach after the consumption of foods and liquids. As a result of this expansion, the volume of the stomach also increases. It helps to hold larger amounts of food. The folds also create a greater surface area, which allows the quick absorption of nutrients.know more about "stomach" here: https://brainly.com/question/10231927
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nitrogen fixation is nitrogen fixation is rare among microorganisms. common in bacteria, but absent in archaea. limited to proteobacteria. widespread among microorganisms.
Nitrogen fixation is nitrogen fixation is a. rare among microorganisms
Nitrogen fixation is a process by which certain bacteria and archaea convert atmospheric nitrogen gas into ammonia, a form of nitrogen that is usable by other organisms. It is rare among microorganisms, with it being limited to Proteobacteria, which is common in bacteria, but absent in archaea. However, some studies have shown that it is more widespread among microorganisms than previously thought.
Nitrogen fixation is rare among microorganisms because the process requires the presence of certain specialized enzymes and the energy expenditure required to convert atmospheric nitrogen into ammonia is too high for most organisms. Furthermore, nitrogen is a relatively abundant element in the atmosphere, so there is less of a need for most microorganisms to undergo the nitrogen fixation process. Thus, nitrogen fixation is mainly confined to the Proteobacteria family of bacteria.
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I really need help!!!!
Answer:
1) Lysosome
2) Golgi body
3)Nucleus
4)Mitochondria
5)Endoplasmic reticulum
6)Nucleus
7)Cell wall
8)Cell membrane
9)Vacuole
10)Mitochondria
11)Chloroplast
12)Lysosome
13)Ribosome
14)Nucleus
15)Cytoplasm
16)Cell wall
17)Homeostasis
Explanation:
I am almost certain that this is correct, hope it helps
How are sediment rocks made
Explanation:
Sedimentary rocks are formed when sediment is deposited out of air, ice, wind, gravity, or water flows carrying the particles in suspension. This sediment is often formed when weathering and erosion break down a rock into loose material in a source area.
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station 1.1 *please use numbers instead of words for ages (i.e 7 instead of seven) a. during what age range (include ±) do the first adult (permanent) teeth erupt?
The age range (include ±) during which the first adult (permanent) teeth erupt is 6 to 7 years old.
Why do teeth erupt?A child's tooth will usually start to loosen when their adult teeth grow beneath it. The adult tooth pushes the baby tooth out as it erupts. When the root of a tooth begins to break down, it becomes loose. As a result, it will simply fall out and be replaced by an adult tooth. The primary teeth are lost as the child grows, and they are replaced by the permanent teeth.
The roots of the primary teeth are resorbed by the body as the permanent teeth form, causing the primary teeth to loosen and ultimately fall out. The adult teeth then take their place. The first adult teeth to emerge are usually the molars.
The first adult teeth to erupt are the first molars, which are typically found in the back of the mouth. The second molars follow shortly after the first ones. The incisors and canines emerge in the front of the mouth after the molars. In conclusion, the age range (include ±) during which the first adult (permanent) teeth erupt is 6 to 7 years old.
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if humans began hunting and driving the great barracuda to extinction how would this affect the ecosystem (answer should discuss biodiversity, food webs, and food chains)
Answer:
then it may effect the entire biodiversity as many rare animals and birds can be killed and they can be existinc from the nanture it will directly affect the ecosystem and species diversity the food chain will also be directly affected as any one animal or species will be existinc the number of other species may rapidly increases or decrease
A minute-by-minute change in the atmosphere is the definition of ?
Answer:weather
Explanation:
state one similarity and one difference between controlled action and uncontrolled action
Explanation:
Both voluntary and involuntary action are controlled by the same parts of the brain. Voluntary action is done under the control of one's will while the other is not under the control of one's will.
7. Microscopes that view slides are called ____________________ because the use _______________ lenses.
Answer:
compound light microscope, optical
Explanation:
as an alternative to synthetic pesticides, genetic engineering can be used to ________ .
Answer:
self destruct
Explanation:
repurpose a strain of beneficial bacteria
about how many nephrons are in a kidney? multiple choice question. 12 thousand 1.2 billion 1.2 million 1200
The correct answer to your multiple-choice question is 1.2 million nephrons in each kidney. Nephrons are the functional units of the kidney responsible for filtering blood and producing urine.
Each kidney has approximately 1.2 million nephrons, which are responsible for regulating the body's fluid balance, removing waste products from the blood, and maintaining electrolyte balance. The nephron is composed of a glomerulus, which filters blood, and a tubule, which reabsorbs water and nutrients and excretes waste products. The kidneys play a crucial role in maintaining overall health and well-being, and any damage to the nephrons can result in a range of kidney-related disorders, including chronic kidney disease and kidney failure. Therefore, it is important to take care of your kidneys by drinking plenty of water, eating a healthy diet, exercising regularly, and avoiding excessive alcohol consumption and smoking.
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How might disease be responsible for the rise in buffalo population that our investigation is centered on
Answer:
Suppose that the buffalo has a natural predator A.
Now, if there is new disease introduced, that particularlly atacks the natural predator A of the buffalo, we may be in a situtation where the percentage of the buffalo population that was predated by A is decreased (as we have a smaller number of predators A that are active). This means that we have more live buffalos, and as most biological organism, the growth of population is exponential. So having more buffalos today, means that in some months we will have plenty more of them, and this is why a disease can conclude in a rise in the population of some species.
Which of the following transport channels are NOT directly involved in the process of osmosis? Select all that apply.
A. Chloride transport channels
B. Glucose transport channels
C. Sodium transport channels
D. Aquaporin transport channels
Osmosis is a type of passive transport that occurs when solvent molecules diffuse through a semi-permeable membrane from a region of lower solute concentration to a region of higher solute concentration.
The transport channels that are not directly involved in the process of osmosis are Chloride (Cl-) transport channels, glucose (C6H12O6) transport channels, and sodium (Na+) transport channels.The correct options are A, B, and C.Explanation:Chloride (Cl-) transport channels are responsible for the passage of chloride ions through the membrane.Glucose (C6H12O6) transport channels are responsible for the passage of glucose molecules through the membrane.
Sodium (Na+) transport channels are responsible for the passage of sodium ions through the membrane.Aquaporin transport channels are responsible for the passage of water molecules through the membrane.
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select the early observations made by darwin that helped in his formulation of the idea of evolution by natural selection.
Charles Darwin made several key observations during his voyages and studies that contributed to the formulation of the idea of evolution by natural selection. Some of the early observations include:
Variation within species: Darwin observed that individuals within a species exhibit variation in their traits, such as size, shape, coloration, and behavior. This variation is inherited and can be passed on to the next generation. Overproduction and competition: Darwin noticed that populations have the potential to produce more offspring than the environment can support. This leads to competition for limited resources, such as food, water, and shelter. Only a fraction of the offspring survives to reproductive age. Struggle for existence: Darwin observed that individuals within a population compete for resources, and some individuals are better adapted to their environment than others. Those individuals with advantageous traits have a higher chance of surviving and reproducing.
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antibiotics can lead to septic shock if used to treat antibiotics can lead to septic shock if used to treat gram-positive bacterial infections. gram-negative bacterial infections. protozoan infections. viral infections. helminth infestations.
Antibiotics can lead to septic shock if they are used to treat gram-negative bacterial infections.
What is septic shock?Septic shock is a life-threatening condition that occurs when blood pressure drops to a very low level after an infection and any type of bacteria can cause the infection.
Sepsis and septic shock can result from an infection that may be anywhere in the body like pneumonia, influenza, urinary tract infections or even from a cut on the finger that becomes infected. Sepsis can also cause abnormal blood clotting that results in small clots or burst blood vessels that damage tissues. Most of the people recover from mild sepsis but mortality rate for septic shock is about 40%.
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7- Describe in brief the
digestion of food in stomach in human digestive system.
plz answer fast
Answer:
After you swallow, peristalsis pushes the food down your esophagus into your stomach. Stomach. Glands in your stomach lining make stomach acid and enzymes that break down food. Muscles of your stomach mix the food with these digestive juices.
Explanation:
1. What caused the Lake Missoula
Answer:
The lake was the result of an ice dam on the Clark Fork caused by the southern encroachment of a finger of the Cordilleran Ice Sheet into the Idaho Panhandle. It was the largest ice-dammed lake known to have occurred.
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Circle the correct answer. Suppose there is a population of elephant seals with one sexually dominant bull (male seal). All other male seals seldom if ever get the opportunity to mate. The population of seals is stable and neither grows nor shrinks. (Part A) The bull's Darwinian fitness is probably a.) >1 b.) =1 C.) <1 (Part B) The other male seals' Darwinian fitnesses probably average: a.) >1 b.) =1 c.) <1 (Part C) The average Darwinian fitness of the individuals in the entire population is probably a. )>1 b.) =1 C. )<1
Part A: The bull's Darwinian fitness is probably (a.) >1
Part B: The other male seals' Darwinian fitnesses are probably average: (c.) <1
Part C: The average Darwinian fitness of the individuals in the entire population is probably (b.) =1
Part A: Darwinian fitness is defined as the contribution of an individual to the gene pool of the following generation relative to the average for the population, as a result of the selection pressures. An organism with a high fitness level is more likely to survive and reproduce than an organism with a lower fitness level. In the elephant seal population, the sexually dominant bull has the highest Darwinian fitness since it has a greater likelihood of passing on its genes.
Part B: Since other male seals do not get the opportunity to mate, their fitness levels are relatively low, which suggests that their Darwinian fitness level is below average.
Part C: The average Darwinian fitness level of the population is 1 in a stable population that neither grows nor shrinks. This suggests that the rate of the organism's population with a higher fitness level is similar to that of the population with a lower fitness level.
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A cross between two mice with long tails and brown fur produced the four types of offspring listed below.
long-tailed with brown fur
long-tailed with white fur
short-tailed with brown fur
short-tailed with white fur
Which genetic law best explains the results of this cross?
Segregation
Independent assortment
Dominance
Incomplete dominance
Answer:The genetic law that best explains the results of this cross is Segregation.
In Segregation, each parent has two copies of a gene, one from each parent, and each offspring receives one copy of the gene from each parent. In this cross between two mice with long tails and brown fur, the two genes for tail length (long or short) and fur color (brown or white) have separated, or segregated, during gamete formation, and each offspring has received one copy of each gene.
The fact that the offspring have different combinations of these genes (long-tailed with brown fur, long-tailed with white fur, etc.) suggests that the genes for tail length and fur color are located on different chromosomes and are assorting independently of each other, which is also in line with the law of Independent Assortment. However, the fact that the offspring display four distinct phenotypes (appearance) implies that the genes for tail length and fur color are dominant or recessive and not codominant, which would be seen in Incomplete Dominance.
Explanation:
The genetic law that best explains the results of this cross is Segregation.
In Segregation, each parent has two copies of a gene, one from each parent, and each offspring receives one copy of the gene from each parent. In this cross between two mice with long tails and brown fur, the two genes for tail length (long or short) and fur color (brown or white) have separated, or segregated, during gamete formation, and each offspring has received one copy of each gene.
The fact that the offspring have different combinations of these genes (long-tailed with brown fur, long-tailed with white fur, etc.) suggests that the genes for tail length and fur color are located on different chromosomes and are assorting independently of each other, which is also in line with the law of Independent Assortment. However, the fact that the offspring display four distinct phenotypes (appearance) implies that the genes for tail length and fur color are dominant or recessive and not codominant, which would be seen in Incomplete Dominance.
As an environment changes, and some organisms have a higher fitness than others, natural selection acts directly on
a. existing variations.
b. genetic material.
c. acquired traits.
d. individual organisms
Answer: I believe it is c. acquired traits
Explanation: Sorry if it's wrong
The diameter of the basketball and the diameter of the basket establish limits for the angle at which the basketball can pass cleanly through the basket. A wider range of paths is available when the ball is:
Bouncing
Coming straight down
At a 45 degree angle
Shot from center court
A wider range of paths is available when the ball is shot from center court.
The diameter of the basketball and the diameter of the basket play a crucial role in determining the angle at which the basketball can pass cleanly through the basket.
When the ball is bouncing, its path is affected by the interaction between the ball and the playing surface.
The angle at which the ball can cleanly pass through the basket is limited by the diameter of the ball and the size of the basket opening.
Due to the bouncing nature, the ball needs to align with the basket at a specific angle that allows it to fit through the opening without hitting the rim or backboard.
This restricts the available range of paths for the ball.
When the ball is coming straight down, such as during a free throw or a ball that is falling from above the basket, the angle at which it can cleanly pass through the basket is again limited by the diameter of the ball and the size of the basket opening.
The ball needs to align with the basket vertically to avoid hitting the rim or backboard.
At a 45-degree angle, the ball has a higher chance of cleanly passing through the basket.
This angle allows the ball to utilize the maximum space available in the basket opening, increasing the likelihood of a successful shot.
However, it is important to note that the diameter of the ball and the size of the basket opening still place limits on the range of paths even at this angle.
When shot from center court, the angle at which the ball can cleanly pass through the basket depends on several factors, including the initial velocity, trajectory, and the height at which the ball is released.
The diameter of the ball and the size of the basket opening are still important considerations, but the distance from which the ball is shot introduces additional variables that affect the available range of paths.
In summary, the wider range of paths available for a basketball to cleanly pass through the basket is generally observed when the ball is shot at a 45-degree angle, as this angle maximizes the utilization of the available space in the basket opening.
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25. Which of the following correctly describes the sequence of events used to help humans remember
information?
a. encoding- storage- retrieval
b. storage- encoding -retrieval
c. encoding- retrieval -storage
d. retrieval- storage- encoding
Answer:
encoding storage and retrieval
Explanation:
Encoding is defined as the initial learning of information; storage refers to maintaining information over time; retrieval is the ability to access information when you need it.
In a cladogram (a type of phylogenetic tree), clades are groups of related organisms. In the past, phylogenetic lists built clades using the idea of parsimony, that the pattern that uses the fewest evolutionary changes is the most likely to be correct. Today, with the use of computers and DNA sequences, the explanation that is thought to be the best is ___________ .
Answer:
one with the fewest number of genetic differences in the nucleotide sequence.
Explanation:
A cladogram is a diagram capable of showing the relationships among different species and/or group of organisms. In a cladogram, the root indicates the common ancestor, while internal nodes represent the common ancestors of each group. In consequence, this diagram can be used to establish evolutionary relationships in which the start branch points represent common ancestors shared by the organisms found in the 'branches'. Nonetheless, the length of the branches in the cladogram does not represent evolutionary distances among groups. In recent years, cladograms based on DNA sequencing data have been combined with morphological data to establish evolutionary relationships among species.
The portion of the brain that rims the surfaces of the cerebral hemispheres forming the cerebral cortex is the
The portion of the brain that rims the surfaces of the cerebral hemispheres forming the cerebral cortex is called the neocortex. The neocortex is responsible for higher brain functions such as conscious thought, sensory perception, spatial reasoning, and language.
The neocortex is the outermost layer of the cerebral hemispheres, responsible for higher-order brain functions such as sensory perception, motor control, spatial reasoning, conscious thought, and language. It plays a crucial role in human cognition and consists of six layers, each containing distinct types of neurons and connections. This intricate organization enables the neocortex to process and integrate information, making it a critical component of the human brain's overall function.
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Describe the following terms as they relate to classical conditioning:
extinction
spontaneous recovery
generalization
discrimination
1. Extinction: Extinction is the weakening or disappearance of a conditioned response due to the lack of reinforcement.
2. Spontaneous Recovery: Spontaneous recovery is the reappearance of an extinguished conditioned response after a while has passed since the last extinction trial.
3. Generalization: Generalization is the tendency for a conditioned response to be elicited by stimuli that are similar to, but not identical to, the original conditioned stimulus.
4. Discrimination: Discrimination is the ability to differentiate between stimuli that are similar but not identical.
True or False? Conduction works in liquids and gases.
Answer: conduction takes place in liquids but not gases
Explanation:
Hope this helped :)
Answer:
true- Conduction works in both
Explanation:
the dum dum before me is wrong
The list shows steps in the process of ocean water becoming salty. Number the statements from 1 to 4 to
describe this process from the start to finish.
________ Rivers carry minerals to the ocean.
________ Water containing minerals flows into rivers.
________ Water from rain dissolves minerals in rocks.
________ Over time, the salt concentration of ocean water increases.
The process of ocean water becoming salty is as follows
Rivers carry minerals to the ocean.
As rivers flows over the rocks containing soluble minerals, some of them get dissolved in the water. Thus, rivers carry many nutrients from land to the ocean.
Water containing minerals flows into riverswater that flooded carry's minerals .It releases minerals that are carried away to streams and river
Water from rain dissolves minerals in rocksAfter a heavy rainstorm, rainwater that falls on land dissolves minerals in rock and soil river. It discharge increases due to surface Gravity pulls river water downhill toward the ocean. Then over time, he salt concentration of ocean increases.
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In which pond will gill breathing snails be replaced by lung breathing snails that climb to the surface to breathe
Gill breathing snails will be replaced by lung breathing snails that climb to the surface to breathe in the pond that has Cattails, bulrushes, and water lilies growing in it.
What is a snail?A snail is an animal with a long soft body with no backbone, they are invertebrate animals.
Cattails, bulrushes, and water lilies are plants with roots in the bottom of the pond, but they can grow to the surface of the water. They serve as habitats or dwellings for animals that need to climb to pond surfaces for oxygen.Conclusively, ponds that contain Cattails, bulrushes, and water lilies can replace gills with by lung breathing snails.
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The grape-like out-pouchings located at the ends of the respiratory bronchioles are called?
According to the research, the correct option is alveoli, the grape-like out-pouchings located at the ends of the respiratory bronchioles are called alveoli.
What are alveoli?They are the terminal diverticula of the bronchial tree, that is, they are the grape-like out-pouchings located at the ends of the bronchioles, in which gas exchange takes place between the air that was inhaled and the blood.
That is, these are similar to bags, where the body manages to get the oxygen it needs for its operation and through the same opening, the gases enter and leave the pulmonary alveoli.
Therefore, we can conclude that according to the research, the correct option is alveoli, the grape-like out-pouchings located at the ends of the respiratory bronchioles are called alveoli.
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what are 3 careers in environmental science
Answer:
Environmental Scientist, Environmental Lawyer, Environmental Engineer
Explanation:
Answer: Botanist , Chemist, Ecologist
Explanation:
Spontaneous genetic mutations are one cause of cancer. They can happen at any time for various reasons such as exposure to certain carcinogens. Researchers are working to understand more about their causes. If X is the number of mutations present in a person's body at time Y, then X is a(n) _____ variable.
The term to fill in the blank in the statement "If X is the number of mutations present in a person's body at time Y, then X is a(n) _____ variable" is a Random variable.
A random variable is a variable that takes on various numerical values based on the results of a random experiment. Mutations are random events that are unpredictable. They can occur in cells of an organism's body, resulting in a change in the DNA sequence that may cause cancer. The number of mutations present in a person's body at a specific point in time can be considered a random variable because it is impossible to predict exactly how many mutations will occur in a cell.
Scientists study the frequency, distribution, and pattern of mutations to develop a better understanding of the causes of cancer. Random variables can be either discrete or continuous depending on the nature of the data. Discrete random variables can only take on specific values, whereas continuous random variables can take on any value within a range of values. Since the number of mutations present in a person's body is a countable value and does not exist in between two specific values, it is considered a discrete random variable. Hence, X is a random variable.
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