explain different layer of alimentary track
Answers
The mucosa, which is made up of simple epithelial cells, is the GI tract's innermost layer. It is the GI tract's absorptive and secretory layer. The mucosa, which is the innermost layer, is responsible for absorption and secretion. Epithelium cells and a thin connective tissue make up this structure. Specialized goblet cells in the mucosa secrete sticky mucus throughout the Gl tract. Small finger-like projections called villi and microvilli aid to enhance surface area for nutrition absorption on the mucosa layer.
The Submucosa
The submucosa is a dense, uneven layer of connective tissue that supports the mucosa and contains major blood arteries, lymphatics, and nerves. The submucosa is a thick, vascular'layer that serves the mucosa. The blood arteries of the submucosa gather up the absorbed substances that pass through the mucosa. There are glands and nerve plexuses in the submucosa. The submucosa, which lies beneath the mucosa and is made up of fibrous connective tissue, separates the mucosa from the muscularis externa, the next layers.
The Muscularis
The stomach muscularis differs from the muscularis of other Gl organs in that it
includes three layers of muscle rather than two. The adventitia-connective tissue layers that run parallel to the omenta-lies beneath these muscle layers. In the gastrointestinal (GI) tract, the muscularis is responsible for segmental contractions and peristaltic motions.
The Serosa
A secretory epithelium layer and a thin connective tissue layer make up the serosa, which reduces friction caused by muscle movements. Serosa should not be confused with adventitia, which is a connective tissue layer that links things together rather than reducing friction. The intraembryonic coelom forms the serous cavities, which are effectively empty spaces within the body enclosed by a serous membrane. Visceral organs grow close to a cavity and invaginate into the bag-like coelom early in embryonic life. As a result, each organ is encircled by a serous membrane and does not lie within the serous cavity. The visceral layer is in contact with the organ, whereas the parietal layer is in contact with the body wall.
Related Questions
Hitchhiker’s thumb (H) is dominant to no hitchhiker’s thumb (h). A woman
who does not have hitchhiker’s thumb marries a man who is heterozygous for
hitchhiker’s thumb. What is the probable genotypic ratio of their
children?
Group of answer choices
50% Hh : 50% hh
100% HH : 0% hh
75% Hh : 25% hh
0% Hh : 100% hh
Answers
Answer:
there is a 50 50 chance
Explanation:
have a nice day!;)
The probable genotypic ratio of their children is 50% Hh : 50% hh because the man is heterozygous for the hitchhiker’s thumb, hence option A is correct.
What is a heterozygous condition?In some crosses, there are two conditions, in which some alleles are heterozygous and some are homozygous. In the homozygous trait, both alleles are the same, it may be dominant or recessive HH and hh, respectively.
The cross is between a woman who does not have a hitchhiker’s thumb and a man who is heterozygous for a hitchhiker’s thumb.
Cross: Hh X hh
Gametes: H and h
Genotype: Hh, Hh, hh, hh
Phenotype: 50% of hitchhiker’s thumb and 50% not having hitchhiker’s thumb.
The cross is attached in the image below.
Therefore, due to the heterozygous condition of man genotypic ratio of their children is 50% Hh: 50% hh.
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The flow of genetic information from DNA to protein in eukaryotic cells is called the central dogma of biology.
a). Explain the role of each of the following in protein synthesis in eukaryotic cells.
- RNA polymerase
- Spliceosomes (snRNPs)
-Codons
-Ribosomes
-tRNA
Answers
Protein synthesis in eukaryotic cells involves RNA polymerase, spliceosomes, codons, ribosomes, and tRNA working together to transcribe DNA into RNA, remove introns, translate codons into amino acids, and assemble proteins.
How do key players contribute to protein synthesis in eukaryotic cells?In eukaryotic cells, protein synthesis involves several key players such as:
RNA polymerase,spliceosomes, codons, ribosomes, and tRNA.RNA polymerase synthesizes RNA from a DNA template during transcription, while spliceosomes remove introns from pre-mRNA molecules and splice together exons to form a mature mRNA molecule.
Codons, which are sequences of three nucleotides, specify the amino acids that will be added to a growing protein chain during translation.
Ribosomes catalyze the formation of peptide bonds between adjacent amino acids, while tRNA carries specific amino acids to the ribosome during translation.
These players work together in a coordinated manner to ensure accurate and efficient protein synthesis.
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What is gray matter made of
Answers
Answer:
Gray matter consists primarily of neuronal cell bodies, or soma. This a spherical structure that houses the neuron's nucleus.
pls i well pay you 40$ +50points
Answers
The model of magnetic attraction and magnetic repulsion are given below:
Repulsion: N <----> N or S <----> S
Attraction: N ---><--- S or S --><--- N
What is the law of magnetism?The law of magnetism states that like poles repel and unlike poles attract.
The poles of a magnet refer to the ends of a magnet. There are two poles in a magnet; the North pole and the South pole.
The North pole of a magnet is the end of the magnet that points toward the geographical north when a bar magnet is suspended in the Earth's magnetic field.
The south pole of a magnet is the end of the magnet that points toward the geographical south when a bar magnet is suspended in the Earth's magnetic field.
When two North poles of a bar magnet are brought close to each other, they repel themselves. Similarly, when two South poles of a bar magnet are brought close to each other, they repel themselves.
However, when a North pole and a South pole of a bar magnet are brought close to each other, they attract themselves.
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Construct an argumentative paragraph. Do you believe it's ethical or unethical to artificially select traits in plants and or animals? Provide evidenco to suoport your claims. It doesn't matter what side you chose, but I need it asap.I will give you any mark you want.
Answers
Answer:
The ethics of artificially inserting traits in animals has been in the practice for years in the form of selective breeding, but should scientists really be editing DNA to the extent they are today? I don't believe they should. Life itself should construct itself without us interfering. Making a brand new plant just because it looks nice doesn't account for many factors, including the fact that it could be harmful to nearby plants if pollinated. In addition, generic engineering costs quite a lot of money, which should be used on other more cost effective methods, such as improving agriculture rather than creating a whole new plant that could harm entire crops. Genetic engineering isn't a necessity and humans should not play God with plant and animal life.
which non-hodgkin’s lymphoma is included in the classification of t-cell and nk-cell lymphomas?
Answers
In the classification of T-cell and NK-cell lymphomas, one of the Non-Hodgkin's Lymphomas included is Peripheral T-cell Lymphoma (PTCL).
PTCL is a type of Non-Hodgkin's Lymphoma that is classified under T-cell and NK-cell lymphomas.
it can be said that non-Hodgkin's lymphoma can be broadly classified into B-cell and T/NK-cell lymphomas, with T/NK-cell lymphomas comprising less than 15% of cases.
Therefore, identifying the specific type of non-Hodgkin's lymphoma is important for determining the appropriate treatment plan.
Peripheral T-cell Lymphoma is a significant Non-Hodgkin's Lymphoma included in the T-cell and NK-cell lymphomas classification.
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bassler j, ducatman a, elliott m, wen s, wahlang b, barnett j, cave mc. environmental perfluoroalkyl acid exposures are associated with liver disease characterized by apoptosis and altered serum adipocytokines. environ pollut. 2019 apr;247:1055-1063. doi: 10.1016/j.envpol.2019.01.064. epub 2019 jan 18. pmid: 30823334; pmcid: pmc6404528
Answers
The objective is to examine the association between environmental perfluoroalkyl acid exposures and liver disease.
The research study conducted by Bassler, Ducatman, Elliott, Wen, Wahlang, Barnett, and Cave aims to investigate the relationship between environmental perfluoroalkyl acid exposures and liver disease. The study specifically focuses on two aspects: apoptosis and altered serum adipocytokines.
Apoptosis refers to programmed cell death, which plays a crucial role in various physiological processes and can be dysregulated in diseases such as liver disease. The researchers aim to understand whether exposure to perfluoroalkyl acids contributes to liver disease by influencing apoptosis.
Additionally, they explore the impact of perfluoroalkyl acid exposures on serum adipocytokines, which are hormones released by adipose tissue that play a role in metabolism and inflammation.
By studying these associations, the research aims to provide insights into the potential mechanisms through which perfluoroalkyl acid exposures may lead to liver disease characterized by apoptosis and altered serum adipocytokines.
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The complete question is:
What is the main focus or objective of the research study conducted by Bassler J, Ducatman A, Elliott M, Wen S, Wahlang B, Barnett J, and Cave MC, as indicated in the publication "Environmental perfluoroalkyl acid exposures are associated with liver disease characterized by apoptosis and altered serum adipocytokines" in Environmental Pollution?
Why is it important for older adults to get a colonoscopy?
Answers
Answer:
The older you get the greater chance you have for colon cancer.
Explanation:
Answer:
It is important for older adults to get a colonoscopy to check for any signs of cancer.
6. What is the function of the vacuole in a cell?
A.)transports proteins to other locations in the cell
B.) breaks down food and releases energy
C.) stores water, waste products, and food
D.)manufactures proteins
Answers
Answer:
c, vacuoles are storage spaces
Answer:
\(vacuole \: in \: a \: cell \: stores \: water, \\ \: waste \: products ,\: and \: food.\)
Question 3 of 15
Which of the following statements best describes the function of the Golgi
apparatus?
A. Signaling gene expression
B. Producing lysosomes
C. Engulfing nutrients
Ο Ο
D. Expelling wastes
SUBMIT
Answers
Answer:
the Golgi Apparatus is a complex of vesicles and folded membranes within the cytoplasm of most eukaryotic cells, involved in secretion and intracellular transport. Therefore, I believe the correct answer would be B. Producing Lysosomes
Explanation:
6.
Evolution explains how variations can lead to changes in a species
Answers
Answer: Evolution is the process by which populations of organisms change over generations. Genetic variations underlie these changes. as we evolve our genetic genes change because the gametes come from 2 parents and has half the DNA (23) and thousands of years passes and if you will compare people in ancient times to now we are completely different.
When red light strikes certain cones, they excitea particular bipolar cell. When green light strikes the same cones, they inhibitthe bipolar cell. This observation supports which theory
Answers
Answer:
The correct answer is : The opponent process theory
Explanation:
The opponent process theory states that one color of the color pair dominant over the other color and suppresses it. German physiologist Ewald Hering proposed it for the first time in late 18th century.
The opponent process theory of color vision suggests that our ability to perceive color is controlled by three receptor complexes with opposing actions. According to this theory the human eye perceive color is regulated by the 3 antagonist or opposing systems or channels in the eye.
For example, when red color hits the specific region of cones it activates the specific bipolar cells but when the cones stroked by the green color the bipolar cells are inhibited due to the members of different color channel or pair.
Thus, the correct answer is : The opponent process theory
what is it called when water evaporates from plants?
Answers
Answer:
Transpiration
Explanation:
Answer: Transpiration
Which structure is represented by the letter C?
Choose 1 answer:
A
Chloroplast
B
Mitochondria
C
Vacuole
D
Nucleus
Answers
Answer:
A. Chloroplast
Explanation:
\({correctmeifiamwrong}}\)
Answer:
A chloroplast
Explanation:
which organism is both a primary consumer and a secondary consumer in this web
Answers
Answer:
Omnivores
Explanation:
Omnivores, which feed on both plants and animals, can be considered as being both primary and secondary consumers.
Answer:
An organism cannot serve as both a main consumer and a secondary consumer at the same time in an ecological food web.
Explanation:
A primary consumer, usually referred to as a herbivore, consumes other producers such as plants directly. In a food chain or web, they are located on the second trophic level.
While a secondary consumer feeds on primary consumers. In a food chain or web, they are located on the third trophic level.
Each creature normally resides in a certain trophic level, which indicates its place in the movement of nutrients and energy through the ecosystem. An organism cannot occupy the primary consumer and secondary consumer levels at the same time, even if it can travel up or down the food chain/web by consuming other creatures
So, no organism can serve as both primary consumer and secondary consumer.
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An increase in the volume of forests and phytoplankton would lead to a reduction in free_________ which in turn could cause a decrease in carbon dioxide in the atmosphere.
Answers
Answer: Carbon Dioxide and other green house gasses
Explanation:
Answer:
"Carbon"
Explanation:
Just did it
The initial population of a bacteria colony is observed to be 500 bacteria. The population shows a growth rate of 50% per day, and the carrying capacity of the surrounding is estimated to be 2,000,000 bacteria. To the nearest whole number, find the population of bacteria after 15 days. A 165,822 bacteria B 622,707 bacteria C) 903,430 bacteria 2,000,000 bacteria
Answers
The population, to the nearest whole number, of bacteria after 15 days is approximately 4,769 bacteria, The correct option is E, None of the above.
To find the population of bacteria after 15 days, we can use the formula for exponential growth:
N = N₀ * \((1 + r)^t\)
Where: N = Final population after time t N₀ = Initial population r = Growth rate per time period t = Time period
Given: N₀ = 500 bacteria r = 50% per day (or 0.5) t = 15 days
Plugging in the values, we have:
N = 500 * \((1 + 0.5)^{15\)
Calculating this expression:
N = 500 * \((1.5)^{15\) N
= 500 * 9.537 N
= 4,768.5
Thus, the correct option is E, None of the above.
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The question is inappropriate; the correct question is:
The initial population of a bacterial colony is observed to be 500 bacteria. The population shows a growth rate of 50% per day, and the carrying capacity of the surrounding area is estimated to be 2,000,000 bacteria. To the nearest whole number, find the population of bacteria after 15 days.
A. 165,822 bacteria
B. 622,707 bacteria
C. 903,430 bacteria
D. 2,000,000 bacteria
E. None of the above
what happens to the energy captured during glycolysis and the citric acid cycle by the activated carriers nadh and fadh2.
Answers
Energy is passed to an electron transport chain in order to produce a proton (H+) gradient across the inner mitochondrial membrane.
What is oxidative phosphorylation?Oxidative phosphorylation is the last and most energetically efficient step in cellular respiration.
Oxidative phosphorylation is based on the transport of electrons on carriers, which is coupled to the generation of a proton gradient.
In conclusion, energy is passed to an electron transport chain in order to produce a proton (H+) gradient across the inner mitochondrial membrane.
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Mitosis is a process by which
Answers
Answer:
Mitosis is the process by which a cell segregates its duplicated DNA, ultimately dividing its nucleus into two.
Explanation:
1. An entomologist doing consultant work for soybean farmers reported that this year's aphid population has a daily exponential growth rate of
18.5%.
The entomologist estimates that a certain crop of soybeans currently has about 20,000 aphids.
How many aphids will there be after one week if left untreated?
Answers
Answer:
if left untreated, the soybean crop will have approximately 73,040 aphids after one week.
Explanation:
please answer this
Answers
Answer:
11. T
12. F
13. F
14. F
15. T
Explanation:
What is the primary function of leaves? *
A. Gas Exchange
B. Movement of Water
C. Piercing the Ground
D. Cell Respiration
Answers
Photosynthesis is the primary funtion of the leaves.
Explanation:
Photosynthesis is defined as the chemical process of converting light energy into chemical energy in a form of food or sugar. Leaves contain most of the chloroplasts in plants that are responsible in capturing light for photosynthesis to occur.
Leaves are naturally green to serve their purpose. This green color is caused by the reflection of the green portion of the visible light spectrum by the green coloring pigment, chlorophyll. Chlorophyll, that is contained in chloroplasts, captures certain wavelengths of light, as energy to initiate photosynthesis. As a result, we get food from plants.
you would like to see if the gene that you are studying in mouse has a homolog in humans. to do this you decide to do a southern blot. you believe the gene sequence will be not be highly conserved. therefore, you would like to select conditions to hybridize your probe with low stringency to find as many candidates as possible. which condition (relatively) will you use? select one: a. at higher annealing temperature b. at lower annealing temperature
Answers
So option a(High stringency) is the correct answer. You will employ (relatively) high stringency.
The gene sequence will be not be highly conserved. As a result, you want to choose criteria to hybridise your probe with minimal stringency in order to find as many candidates as feasible.
What exactly is a gene?
A gene is the most basic physical and functional component of heredity. The building block of genes is DNA. Some genes act as blueprints for protein synthesis. However, many genes do not encode proteins. Human genes range in size from a few hundred to over 2 million DNA bases.
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.
Why is on organism able to create a protein from the gene of another organism?
Answers
What is leaf senescence?
Answers
Answer:
Leaf senescence constitutes the final stage of leaf development and is critical for plants' fitness as nutrient relocation from leaves to reproducing seeds is achieved through this process. Leaf senescence involves a coordinated action at the cellular, tissue, organ, and organism levels under the control of a highly regulated genetic program.
Explanation:
Hope this helps you out!
how life gets and shares energy?
Answers
Answer: Photosynthesis and the food chain.
Which of the following is not a function of the urinary system:
A. Regulation of blood volume
B. Waste removal
C. Gas exchange
D. pH balance
E. All are functions of the urinary system
Answers
Gas exchange is not a function of the urinary system. Thus, the answer is C) Gas Exchange
The urinary system is responsible for several functions including regulation of blood volume, waste removal, pH balance, and regulation of electrolyte levels. It consists of several organs including the kidneys, ureters, bladder, and urethra.
The kidneys filter blood and remove waste products such as urea, creatinine, and excess ions. This process helps to regulate blood volume and blood pressure. The waste products are transported to the bladder through the ureters and are eliminated from the body through the urethra.
The urinary system also plays an important role in maintaining acid-base balance by regulating the concentration of hydrogen ions in the blood. This helps to maintain a stable pH and prevents acidosis or alkalosis.
In summary, gas exchange is not a function of the urinary system, but it is performed by the respiratory system.
Hence the correct Option is C.
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Which of the following sentences are the best short summary for a flashlight?A A flashlight flashlight has has many many uses.uses.A A flashlight flashlight is is able able to to create create light light energy, energy, which which allows allows us us to to see see in in the the dark.dark.A A flashlight flashlight is is a a necessary necessary tool tool for for every every household.household.A A flashlight flashlight is is a a portable, portable, battery-battery-operated operated device device that that makes makes light.light.
Answers
Answer:
The last one
Explanation:
Flashlight is a portable, battery-operated device that makes light.
A flashlight is a portable, battery operated device that makes light is the best short summary for a flashlight.
What are the features of flashlight?A flashlight or torch is a portable hand-held electric lamp. Formerly, the light source typically was a miniature incandescent light bulb, but these have been displaced by light-emitting diodes since the mid-2000s.
The three main features for a flashlight are Dimensions, Battery, and Light. Each of these characteristics are very important when it comes to selecting a flashlight.
Flashlights are used as a light source outdoors, in places without permanently installed lighting, during power outages, or when a portable light source is needed.
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You and your lab partner have been given an unknown animal to identify. Your lab partner is attempting to convince you that the animal is a chordate by pointing out the features that the unknown animal shares with the chordate phyla. Which of the following would your partner correctly assign to a chordate? (Check all that apply) Postanal tail Cranium Pharyngeal slits Notochord Dorsal hollow nerve cord Vertebral column
Answers
Lab partner points out the presence of a postanal tail, pharyngeal slits, notochord, and a dorsal hollow nerve cord, they would be correct in identifying the unknown animal as a chordate.
The following features our lab partner could correctly assign to a chordate when trying to identify an unknown animal: Postanal tail, Cranium, Pharyngeal slits, Notochord, Dorsal hollow nerve cord, and Vertebral column.
To identify a chordate, the following features would be correctly assigned:
1. Postanal tail
2. Pharyngeal slits
3. Notochord
4. Dorsal hollow nerve cord
Cranium and vertebral column are specific to vertebrates, which are a subgroup of chordates. While these features can be found in many chordates, they are not universally present in all members of the phylum.
So, if your lab partner points out the presence of a postanal tail, pharyngeal slits, notochord, and a dorsal hollow nerve cord, they would be correct in identifying the unknown animal as a chordate.
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Concept Check
10. Describe What can
fossils tell us about ancient
environments?