Answer:
o AB+
Explanation:
the recipient is a universal recipient
What neurotransmitter is released from the sympathetic preganglionic fiber?
a. epinephrine
b. sodium
c. dopamine
d. norepinephrine
e. acetylcholine
The neurotransmitters which is released from the sympathetic preganglionic fiber is acetylcholine
What are neurotransmitters?Neurotransmitters are those chemical substances which are released at the end of a nerve fibre by the arrival of a nerve impulse and by diffusing across the synapse or junction, they effects the transfer of the impulse to another nerve fibre
So few other examples of neurotransmitters are:
SerotoninDopamineGlutamateHistamineNorepinephrineSo therefore, the neurotransmitters which is released from the sympathetic preganglionic fiber is acetylcholine
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The filtrate formed by the nephrons in the kidney is NOT urine. The filtrate is first refined and concentrated by the processes of __________, which form the urine that leaves the body. (Choose all that apply)
The filtrate is first refined and concentrated by the processes of reabsorption and secretion, which form the urine that leaves the body.
Process of filtration in kidney:The glomerulus filters your blood, and the tubule restores necessary substances to your blood while removing waste. The glomerulus is nestled within a region of the kidney called the Bowman's Capsule. This is where filtration occurs. The high pressure causes some substances to pass through the capillary walls when blood is forced through the tiny capillaries. The walls serve as a filter or sieve. This is how the function of the nephron. A glomerulus filters your blood, while a tubule restores necessary substances to your circulation while removing extra waste. Each nephron has both of these functions.
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In this lab, you will explore the microscopic process of bulding proteins from RNA. Instead of working with variables, you will focus on the steps of that process.
The investigative question that will you answer by exploring the process of building proteins from RNA is translation.
What is translation ?The translation is a cellular process by which a specific type of RNA (mRNA) is converted into a protein sequence.
During translation, the messenger RNA (mRNA) is composed of triplets of nucleotides called codons that specify different amino acids.In conclusion, the investigative question that will you answer by exploring the process of building proteins from RNA is translation.Learn more about Translation here:
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Why is anesthesia used while surgery? I what will happen if we don't give anesthesia before surgery ?
Answer:
Anesthesia is used because it puts people to sleep, so they don't feel pain.
If you don't use anesthesia the patient will feel the pain, but might also die.
Explanation:
hope it helps
sorry if I'm wrong
Answer:
It keeps you from feeling pain during the procedure, if anesthesia is not used on you while you're having surgery you will feel EVERYTHING, and you will not have the anesthesia's side effects! :)
Which best describes alleles?
A. They are usually fundamental or modern.
B. They are usually physical or spiritual.
C. They are usually true or false.
D. They are usually dominant or recessive.
Answer:
D. they are usually dominant or recessive.
Explanation:
alleles are pairs of genes found on a particular spot a chromosome. If one is dominant over the other it give rise to a particular trait.
When the ground position of a front moves so that warm air occupies territory that was previously held by cold air, what type of front is it?
When the ground position of a front moves so that warm air occupies territory that was previously held by cold air, It is knows a warm front.
The area where a warm air mass is replacing a cold air mass is known as a warm front. The air behind a warm front is warmer and more humid than the air in front of it. Warm fronts typically migrate from the southwest to the northeast.A warm front is a density discontinuity that is usually seen on the margin of an isotherm gradient that faces the equator and is situated at the leading edge of a homogenous warm air mass. Since warm air is thicker and more difficult to remove from the surface of the Earth than cold air, warm fronts move more slowly than the cold fronts that typically follow them.
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acd is the answer to this multiple choice question
Answer:
where is the question?
Explanation:
Which of these scenarios describe(s) LTD?
Answer choices:
Neuron A fires infrequently upon neuron B, which is silent, which leads to a decrease in their connection strength
Neuron A fires strongly and neuron B fires weakly, which leads to an increase in their connection strength
Neuron A and B both fire, but asynchronously, from an incoming stimulus and decrease their connection strength
Neuron A fires strongly and repeatedly, but not neuron B, which leads to an increase in their connection strength
The correct answer choice which is true about neurons is Neuron A fires strongly and neuron B fires weakly, which leads to an increase in their connection strength
What is a Neuron?Neurons can simply be defined
as the fundamental and functional units of the nervous system. Neurons are also known as nerves.
There are basically three classes of neurons: These are
Efferent neuronesAfferent neuronesIntermediate neuronsSo therefore, neuron A fires strongly and neuron B fires weakly, which leads to an increase in their connection strength
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Amy's teacher is explaining math concepts to the class. amy cannot help paying attention to the teacher's colorful sweater. in this example, amy is focusing on ______ stimuli.
Amy's teacher is explaining math concepts to the class. amy cannot help paying attention to the teacher's colorful sweater. in this example, amy is focusing on salient stimuli.
By giving visual stimuli attentional priority, visual information is selected, and this process can be managed in a variety of ways. When attentional selection reflects the observer's expectations and objectives, it is said to be top-down, and when it reflects the saliency of the stimuli, it is said to be bottom-up.
In this scenario prior to listening to the conceptual talk, attention is initially drawn to the prominent colour distractor. However, the salient element unintentionally drew attention to itself rather than the audio element.
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write the role of HCL in digestion
Answer:
Hydrochloric acid contributes to protein digestion by supplying H+ which activates pepsinogen, the precursor to pepsin. Pepsinogen is secreted by chief cells in the gastric glands of the body and antrum of the stomach.
Explanation:
˙˚ʚ(´◡`)ɞ˚˙
Answer:
Activates pepsin enzyme
Explanation:
Carbohydrates are digested into maltose in the mouth and protein digestion begins in the stomach. In the stomach, food undergoes chemical as well as physical digestion.Due to the peristaltic action of the muscles the bolus breaks up in the stomach wall and mixes well into a chyme. ( Physical digestion )Several secretions flow into the stomach. It is collectively known as gastric juice.Also the juice contains pepsin and HCL acid.Here, the enzyme pepsin acts on the proteins in the food and forms polypeptides, which are intermediate products of life. ( Chemical digestion )And the function of the HCL acid is to stimulate pepsin enzyme and make it activePhagocytic cells are an important part of the innate immune system because of their ability to:____.
a. attack cells infected by a virus.
b. engulf many different pathogens.
c. present foreign antigens that stimulate adaptive immune responses.
d. produce multiple antibodies.
Phagocytic cells are an important part of the innate immune system because of their ability to engulf many different pathogens. So the correct answer is b. engulf many different pathogens.
The detection of a microbial invasion is typically swiftly followed by its engulfment by a phagocytic cell in all animals, including invertebrates and vertebrates. In the tissues across the body of vertebrates, macrophages are particularly prevalent in the lungs and stomach, two places where infections are most prone. Additionally, the liver, spleen, and connective tissues contain significant amounts. These long-lasting cells are among the first to come into contact with invasive pathogens and patrol the body's tissues.
Neutrophils, the second-largest family of phagocytic cells in vertebrates, are short-lived cells prevalent in blood but absent from healthy, normal tissues.
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which feature is charatisic of estauries
The estauries are characterized by mix of fresh water and salt water. That is option A
What is estauries?Estauries is defined as the part of water where many rivers meet and sweep into the ocean.
The characteristics of estauries include the following;
The salty water mixed with freshwater resulting to brackish water formation.The gradient of salinity in a semi-enclosed coastal system.Learn more about brackish water here:
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Which feature is characteristics of estauries:
A mix of fresh water and salt water.
swap-like land.
region of land that drains into a body of water.
the gradient of salinity in a semi-enclosed coastal system.
How much total atp can be created by the complete anaerobic & aerobic metabolism of 1 molecule of glucose?
38 ATP molecules can be made per oxidized glucose molecule during cellular respiration (2 from glycolysis, 2 from the Krebs cycle, and about 34 from the electron transport system).
Cellular respiration is a set of metabolic reactions and approaches that take vicinity in the cells of organisms to convert chemical strength from nutrients into adenosine triphosphate (ATP), and then release waste products. The reactions involved in respiration are catabolic reactions, which break large molecules into smaller ones, releasing strength.
Respiration is one of the key approaches a cellular releases chemical energy to fuel cellular activity. The general reaction occurs in a series of biochemical steps, some of which might be redox reactions. Although cellular respiration is technically a combustion response, it's far an unusual one because of the slow, managed release of strength from the series of reactions.
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Select the statement that is TRUE regarding metabolism. In anabolism, polysaccharides are turned into monosaccharides. In catabolism, complex carbs, proteins and other molecules are disassembled. In catabolism, glucose is combined to form a complex carbohydrate. In anabolism, complex carbs, proteins and other molecules are disassembled.
The statement " In catabolism complex carbohydrates, proteins, and other molecules are disassembled" is true.
The process by which relatively big molecules in living cells are broken down or degraded or disassembled is known as catabolism.
These big molecules like complex polysaccharides, nucleic acids, proteins and some other molecules can be disassembled into smaller molecules like glucose, nucleotides, amino acids etc.
Anabolism is a group of metabolic processes that builds compounds from smaller building blocks.
In simpler form
Catabolism : Complex molecules ----Disassembled----> Simple molecules
Anabolism : Simpler molecules ------Combined-----> Complex molecules
Anabolism is a productive metabolism, whereas catabolism is destructive.
Therefore, catabolism provides the chemical energy required for cell upkeep and growth.
Hence, The statement " In catabolism complex carbohydrates, proteins, and other molecules are disassembled" is true.
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A football player can hear his coach’s voice above the noise of the crowd and can sense an opponent about to run him down. These abilities are due to the action of what part of the brain?
Answer:
Thalamus
Explanation:
Positive selection tests to see if the ______ of a T-lymphocyte can recognize and bind to an MHC molecule.
Positive selection tests to see if the TCR of a T-lymphocyte can recognize and bind to an MHC molecule.
What is a T-lymphocyte?A T-lymphocyte is a special type of immune cell that is generated inside the bone marrow.
The T-cell receptor (abbreviated as TCR) is a protein located on these immune T lymphocytes.
In conclusion, Positive selection identifies if the TCR of a T-lymphocyte can recognize and bind to an MHC molecule.
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Oxygen gas (o2) is an example of a/an __________. a. element b. mixture c. compound d. cell
In a test-cross, an individual that exhibits a dominant trait but has an unknown genotype is mated with an individual that is homozygous recessive.
To assess if an organism expressing a dominant characteristic is homozygous or heterozygous, a test cross can be used.
Back crosses are made between F1 generation plants and any of the parent plants, whereas test cross is made between F1 generation plants with dominant phenotypes and the homozygous recessive parent.
The phenotypes of the children can be used to identify the unknown genotype. If combining the recessive phenotype individual with the unknown dominant phenotype (PP or Pp genotype) results in solely dominant phenotypes (no recessive), then the unknown individual is homozygous dominant.
No matter if you are examining one gene or several genes, test crosses work on the same principle: you are pairing a person with a dominant phenotype but an unknown genotype with a person who is homozygous recessive for all relevant genes.
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Within the mesohyl of a sponge are small rigid structures that act like an endoskeleton, providing structural support for the sponge. What are these called
Spicules are small rigid structures that act like an endoskeleton, providing structural support for the sponge within the mesohyl of a sponge
The "bricks" or structural elements of a sponge are known as spicules, and each species has its own distinct range of spicule sizes, forms, and compositions. When combined, these characteristics can be examined under a microscope to ensure correct identification. Either calcium or silica makes up spicules.
The only skeleton in soft sponges that encrust such hard surfaces as rocks is an internal gelatinous matrix called the mesohyl, which serves as an endoskeleton in the majority of sponges. The mesohyl is typically strengthened by spongin fibers, mineral spicules, or both. Spicules serve as the skeleton and support system for sponges. Additionally, they offer defense against predators.
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Researchers conclude that the functional car8 enzyme decreases pain signaling by inhibiting calcium release through itpr1. which additional finding would most weaken this conclusion?
The additional finding that weaken this is the presence of another factor capable of both altering car8 activity and leading to the inhibition of calcium release.
What are pleiotropic effects?The expression 'pleiotropic effects' makes reference to a given chemical substance or compound (in this case, for example, another enzyme) which is able to alter the functioning of different cellular traits.
These effects (pleiotropic effects) are well known in research to mask the real causes of biological phenomena.
In conclusion, the additional finding that would most weaken this conclusion is the presence of another factor capable of both altering car8 activity and leading to the inhibition of calcium release through itpr1.
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how does the cardiovascular system help the body maintain hormoestasis
Answer:
The cardiovascular system helps maintain homeostasis by continually supplying the central nervous system--the brain and spinal cord--with oxygen and glucose. Brain cells start dying after just one minute without oxygen. The brain is the control center for all of the body's homeostatic processes.
Hemophilia is a sex–linked disorder that is caused by a defective gene on the X chromosome. What will be the pattern of inheritance of the offspring of a hemophiliac father?
During conception there are three stages. What takes place during the second stage which is fertilization?.
Answer:
well the sperm fertilises the egg or zygote
Epigenome-wide association study of DNA methylation in narcolepsy: an integrated genetic and epigenetic approach
Epigenetics is the branch of genetics that deals with the altered genetic expression of the genes without any change in the DNA sequence.
Our body’s normal sleep-wake cycle is regulated by our brain but due to a chronic nervous disorder in the brain, this regulation is disrupted causing the disease Narcolepsy. Research is underway to evaluate the exact reason behind the onset of this disease but as per the researchers, this disease is governed by two branches viz, genetics and epigenetics.
DNA methylation and DNA acetylation are two important concepts under epigenetics which can lead to either switching off or on certain particular genes.
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As mean arterial pressure increases, the ________, informing the medulla oblongata that blood pressure has indeed increased.
As mean arterial pressure increases, the frequency of action potentials from the baroreceptors increases, informing the medulla oblongata that blood pressure has indeed increased.
Special receptors called baroreceptors monitor variations in your blood pressure. The aorta and carotid sinus both contain significant baroreceptors. The walls of the arteries stretch when the blood pressure in the aorta or carotid sinus rises, stimulating an increase in baroreceptor activity.Action potentials are more quickly fired when baroreceptors are activated, with the speed being inversely correlated with the mechanical stretch.The brain interprets the information that the baroreceptors send as a rise in blood pressure. The blood vessels, heart, and kidneys are just a few of the bodily organs that get signals from the brain to lower blood pressure.learn more about baroreceptors here: https://brainly.com/question/8963123
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Which of the following diseases can be passed to another person through an animal bite?
1. Lyme disease
II. Malaria
III. Cholera
Ol only
Oll only
OI and II
O II and III
The disease that can be passed to another person through an animal bite are;
MalariaMalariaCholeraTherefore, the answer is option D.
What are vectors?Vectors are carriers of disease-causing agent or pathogens.
Vectors transfer pathogens that are capable of causing diseases from an infected host to an healthy host.
Malaria is a disease spread by mosquito, in which a protozoan, plasmodium, multiplies in blood every few days.
Cholera is caused by certain strains of the Vibrio cholerae bacterium through ingestion of contaminated water or food, usually marked by severe gastrointestinal symptoms.
The following are diseases that can be transferred via vectors:
Malaria; which is caused by a plasmodium pathogen and carried by a mosquitoCholera; which is caused by a bacterium carried by a houseflyLearn more about vectors at: https://brainly.com/question/14987471
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Answer:
C- | and ||
Lyme and malaria
Explanation:
I took the test and got it right :)
the chambers in the upper part of the heart , which receive blood from the rest of the body , is called _____
The chambers in the upper part of the heart , which receive blood from the rest of the body , is called Atria.
The atria are the two upper chambers. Blood is given out and collected. The ventricles are the two bottom chambers.Blood circulates through the four chambers of the heart. Right atrial blood flows into and via the right ventricle. The blood is pumped from the right ventricle to the lungs, where it is oxygenated. The pulmonary veins that enter the left atrium return the oxygenated blood to the heart. Blood enters the left ventricle from the left atrium. The aorta will deliver the oxygenated blood to every part of the body when the left ventricle pumps blood there.learn more about Atria here: https://brainly.com/question/26387166
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Simulation tools, environments and frameworks for UAVs and multi-UAV-based systems performance analysis (version 2.0)
For a safer approach, the proposed model is simulated using available software instead of hardware implementations.
Frameworks for UAVs and multi-UAV-based systems -
Unmanned aerial vehicles (UAVs) received a lot of attention during the past 10 years and are now employed in a variety of settings and systems. It is vital to evaluate the UAVs' capabilities, the effects of applications, routing protocols, mobility, and other network aspects. Real experiments, especially those involving multiple UAV-based systems, can be very expensive and difficult to carry out.The tools for mono-UAV-based systems as well as the tools for multi-UAV-based systems are identified. The objectives, specifications, advantages, and disadvantages of each instrument under study are covered in full in this essay. In addition, a variety of UAV simulators is offered. It provides recommendations that will be helpful to researchers and assist them in locating and choosing the right instruments.Learn more about UAVs and multi-UAV-based systems
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Which most closely describes plant tissue culture?
Group of answer choices
The process of widening stems and roots.
Growing plants in an artificial, sterile environment.
The process through which a plant grows from an embryo inside the seed.
A process that transports minerals into the roots of a plant.
Flag question: Question 17
The statement which most closely describes plant tissue culture is growing plants in an artificial, sterile environment.
What are plant tissue culture?Plant tissue culture simply refers to the collection and techniques used to maintain or grow plant cells, tissues or organs under sterile conditions on a nutrient culture medium.
So therefore, the statement which most closely describes plant tissue culture is growing plants in an artificial, sterile environment.
One significance of plant tissue culture is that it may be used for genetic modification of a plant. Itcan also be used to increase its yield.Plant tissue culture finds application widely in the plant sciences and forestrySo therefore, the statement which most closely describes plant tissue culture is growing plants in an artificial, sterile environment
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Why is it that intermediate filaments have identical ends and lack polarity, whereas actin filaments and microtubules have two distinct ends with a defined polarity
The three different types of filaments differ in terms of polarity due to their constituent parts, called soluble subunits.
What is intermediate filaments?The intermediate filament's subunits are elongated, not spherical, and they are linked together in an antipolar way. Because of this lack of polarity in the overall filament, no motor proteins can move along intermediate filaments. Only complex multicellular creatures contain intermediate filaments.Intermediate filaments are more durable and essentially serve as the cell's structural framework.Because the tubulin subunits that make up the microtubule are heterodimers of alpha and beta tubulin, the microtubule is structurally polar. The microtubule's lattice is completely polarized along its whole length, not just at its two ends.
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