When a person is anxious or fearful, the autonomic nervous system shunts blood away from peripheral veins to the core of the body.
Select the one best answer
True
False
When a person is anxious or fearful, the autonomic nervous system shunts blood away from peripheral veins to the core of the body - TRUE
Sympathetic stimulation of blood vessels causes arteries and arterioles (resistance vessels) to constrict, increasing vascular resistance and reducing distal blood flow. The increased vascular resistance that results from this across the body raises arterial pressure. When our bodies shift into superman mode, the second signal is transmitted to the hypothalamus, where it activates our autonomic nerve system, which is in charge of the fight-or-flight impulse. Our bodies receive an adrenaline boost as well as an increase in heart rate and blood pressure. When you are afraid, you get that rush.learn more about autonomic nervous system here: https://brainly.com/question/4143211
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Which statement is correct about honey?
Answer:
It contains monosaccharides, the simplest carbohydrate.
Explanation:
This is the best given answer to this question!
The first case in an epidemic is called the_______.
a. prime case.
b. alpha case.
c. index case.
d. break case.
c. index case. The first case in an epidemic is called the index case.
This term is commonly used in epidemiology to refer to the initial individual who becomes infected and serves as the starting point for the spread of the disease within a population. Identifying the index case is crucial for understanding the origins and transmission patterns of the disease. By studying the index case and tracing their contacts, public health officials can gain insights into the source of the outbreak and implement appropriate control measures to limit further spread. The identification and investigation of the index case are important steps in effectively managing and containing epidemics.
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PLEASE HELP ME I REALLY NEED THE ANSWER
Which is the correct order of the Taxonomic Groups from broadest to more specific?
a). Domain, Kingdom, Phylum, Class, Order, Family, Species, Genus
b). Domain, Kingdom, Phylum, Class, Order, Family Genus, Species
c). Kingdom, Domain, Class, Phylum, Family, Order, Genus, Species
d). Domain, Phylum, kingdom, Class, Family, Order, Genus, Species
e. None of the above
Which macromolecule is found in the cell wall?
A)
Carbohydrates
B)
Lipids
Proteins
D)
Nucleic Acids
Describe two ways in which the cell in the strong sugar solution is different from the cell in distilled water.
Answer:
smaller vaculoe and less cytoplasm
Explanation:
Which statement summarizes the law of superposition?
Answer:
The top layer of rock in a rock formation is the oldest.
Explanation:
it's A
Explain the similarities and the changes in ecosystems observed with increasing elevation and increasing latitude.
Similar change in ecosystem observed as a result of increasing elevation and latitude is a decrease in temperature level.
The higher we go, the cooler it becomes, this is a popularly proven assertion as temperature level drops as altitude increases. Similarly, latitude increases as we move towards the north pole with temperature also decreasing simultaneously.Therefore, similar change experienced as latitude and elevation increases is a decrease in temperature level.
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I need 5 abiotic factors and examples that go along with it
An abiotic factor is a non-living part of an ecosystem, including its physical and chemical aspects.
Examples of abiotic factors include:
Sunlight: It is the source of energy for plants and affects animal habits.
Temperature: It affects the life of every species, determining where they can exist, afects metabolic reactions and is determinant for the variation of plants and animals.
Atmosphere: It sustains life on earth protecting animals from UV radiation for example.
Humidity: it affects the internal balance of organisms.
Soil: It is a source of nutrients for plants, therefore its composition affects their functions
The depth of a body of water can also be considered an abiotic factor. It affetcs for example the type of species that can live there and it determines the preassure they would have to withstand.
65 points, please answer ASAP
Who is Ross Carr? Who is Ross Carr?
represents the presence of the
rhesus protein on blood.
AlohaS4
Answer & Explanation:
( Rh Factor ) represents the presence of the Rhesus protein in the blood.
( Rh+ ) blood contains the rhesus protein.
( Rh- ) blood does not contain the rhesus protein.
( Type O ) blood is the universal donor.
( Type AB ) blood is the universal recipient.
( Rh+ ) blood can receive Rh+ or Rh- blood.
( Rh- ) blood can receive Rh- blood.
Hope you found this helpful! <3
~Aloha
Btw: This contains the full Edge question. So, if you're using Edge, just click "done" for each part of the question and answer it. :)
Answer:
( Rh Factor ) represents the presence of the Rhesus protein in the blood.
( Rh+ ) blood contains the rhesus protein.
( Rh- ) blood does not contain the rhesus protein.
( Type O ) blood is the universal donor.
( Type AB ) blood is the universal recipient.
( Rh+ ) blood can receive Rh+ or Rh- blood.
( Rh- ) blood can receive Rh- blood.Explanation:
Which term describes the process of water moving from plant leaves to the atmosphere?
Answer:
Transpiration
Explanation:
How many different 8-mer sequences of DNA are there? (Hint: There are 16 possible dinucleotides and 64 possible trinucleotides.)
A "k-mer" sequence in a DNA is just a sequence of k characters in a string (or nucleotides in a DNA sequence). Now, it is important to remember that to get all k-mers from a sequence you need to get the first k characters, then move just a single character for the start of the next k-mer, and so on. Effectively, this will create sequences that overlap in k-1 positions. There are a total of 65,536 different 8-mer sequences of DNA.
To calculate the number of different 8-mer sequences of DNA, we need to consider that each position in the sequence can have 4 different nucleotides: adenine (A), thymine (T), cytosine (C), and guanine (G). Since we are considering an 8-mer sequence, there are a total of 8 positions.
For each position, there are 4 possible nucleotides, so the total number of possible sequences is obtained by multiplying the number of choices for each position. Therefore, the total number of different 8-mer sequences is 4⁸, which equals 65,536.
It's important to note that the hint provided about 16 possible dinucleotides and 64 possible trinucleotides is not directly relevant to calculating the number of different 8-mer sequences. The number of dinucleotides and trinucleotides represents the number of possible combinations of adjacent nucleotides, but for an 8-mer sequence, we need to consider all possible combinations of nucleotides for each position.
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Which hormone only has an effect in females?
oxytocin
prolactin
growth hormone
Answer:
Oxytocin
Prolactin
Explanation:
Oxytoxin ( love drug ) suppresses Uterus and breasts.
Prolactin simulates milk
All animal cells are diploid except
options:
gametes.
muscle cells.
nerve cells.
germ-line cells.
somatic cells.
Except for gametes, all mammal cells are diploid.
With the exception of the gametes, almost all animal cells are diploid, however some are polyploid (three or more copies of each chromosome, often found in plants). The human genome has 46 diploid chromosomes, which is twice as many as the 23 haploid chromosomes found in human ova and sperm.
From the Greek term meaning "double," a cell or organism with two sets or copies (or homologs), typically one from each parent and so twice the number of haploids, of each somatic chromosome.
The right response is (a) gametes. In contrast to diploid cells, which have two sets of chromosomes, haploid cells only have one set.
Due to the fusing of two haploid gametes, all mammals are diploids genetically. The haploid gamete cells make sure that the amount of chromosomes or genetic material is constant from generation to generation.
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Within a plant leaf, most photosynthesis occurs in cells called ______ cells, which are often interspersed with air spaces to maximize gas exchange.
Answer:
The spongy mesophyll is the kind of cell described.
Explanation:
"Most of the interior of the leaf between the upper and lower layers of epidermis is a parenchyma(ground tissue) or chlorenchyma tissue called the mesophyll (Greek for "middle leaf"). This assimilation tissue is the primary location of photosynthesis in the plant."
The main layers of the leaf are the cuticle, which is the "skin," the palisade mesophyll (the second topmost layer of cells), the spongy mesophyll, which is lower, and the lower cuticle. The spongy mesophyll is so called because it consists of leaf cells interspersed with air, which maximises their access to oxygen.
In which two ways do plant cells use the sugar made in photosynthesis?
A.
To store energy for life processes
B.
To make more complex sugar molecules
C.
To produce carbon dioxide
D.
To produce hydrogen ions
Answer:
the two ways in which plants use sugar made during photosynthesis are A and B.
Explanation:
A. plants need further energy to carry out their major functions like - respiration and transpiration for which they need sugar obtained during photosynthesis .
B. plants need starch and cellulose as a food which are also sugar products.
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The two ways in which plant cells use sugar made in photosynthesis are to store energy for life processes and to make complex sugar molecules. The correct options are A and B.
Plant cells utilize the sugars produced in photosynthesis in various ways.
They store some of the sugar as energy reserves for life processes. This storage is often in the form of starch or other complex carbohydrates, which can be broken down later to release energy as needed.
The sugars are also used to synthesize more complex molecules. These include polysaccharides like cellulose, which form the structural components of the cell wall, as well as other carbohydrates such as sucrose, which are used for transport and energy storage within the plant.
During photosynthesis, plants use carbon dioxide from the environment along with sunlight and water to produce sugars.
Hydrogen ions are involved in certain cellular processes, such as ATP synthesis during cellular respiration, but their production is not directly linked to the utilization of sugars.
Thus, the correct options are A and B.
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Volcanoes form most commonly in regions where one tectonic plate plunges beneath another tectonic plate. How does this process
lead to volcano formation?
OA. The plate plunging downward suddenly turns upward, breaking through the surface to form volcanoes.
OB. The plate plunging downward knocks loose part of the Earth's core, which rises up to form volcanoes at the surface.
OC. It causes strong earthquakes, which shake the ground upward into the shapes of volcanoes.
OD. It causes part of the overriding plate to melt into magma, which rises up to form volcanoes at the surface.
Answer:
OD is the correct answer
Answer:
The answer is
OD. It causes part of the overriding plate to melt into magma, which rises up to form volcanoes at the surface.
Our biggest loser went from 403lbs to 288lbs. He lost a total of 215lbs. Explain what happened to the 215lbs. Be sure to discuss what he did, the process(es) that took place, the type of matter he lost, and the type of matter he lost it as.
Answer:
Explanation:
Weight on a human body is mainly stored as muscle or fat. When we exercise we don't necessarily lose fat. Instead, the fat cells tend to shrink in size but remain the same amount. Fat is converted into energy which the body uses to function. This energy is expelled from the body in many different forms such as carbon dioxide and sweating. Therefore those are the matter that the individual in question lost when losing the 215lbs
Which type of density do you think puts more of a strain on the environment? Why?
High population density puts more strain on the environment because it leads to greater demand for resources and increased pollution.
A high population density means more people are living in a particular area, which in turn increases the demand for resources such as water, food, and energy. This leads to a greater strain on the environment, as more resources need to be extracted, produced, and transported, resulting in increased greenhouse gas emissions and pollution.
High population densities also put pressure on natural habitats, as land is cleared for housing and infrastructure. This can lead to deforestation, loss of biodiversity, and destruction of ecosystems.
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When animal cells divide, they follow a specific sequence of events. Which event happens during mitosis of an animal cell?
A. The cell divides its nucleus into two new nuclei.
B. The cell grows larger in size to prepare for duplication.
C. The cell produces structures, such as centrioles, to help with the division.
D. The cell replicates its DNA, which results in the formation of chromosomes.
Answer:
I believe the best answer would be A.) The cell divides its nucleus into two new nuclei.
Explanation:
Mitosis is part of the division process in which the DNA of the cell's nucleus is split into two equal sets of chromosomes.
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The invaginations of the mitochondria, which increase the surface area of the inner membrane, are called.
Answer:
Crista/Cristae
Explanation:
The name is from Latin.It gives the inner membrane it's wrinkled shape which provides huge space for chemical reactions to occur on.
The _____ is a biochemical test used to determine the identity of an unknown microbe.
The biochemical test used to determine the identity of an unknown microbe is called the "biochemical identification test" or "biochemical assay."
The biochemical identification test is a laboratory technique used to determine the identity of an unknown microorganism, such as a bacterium or yeast. It relies on the unique metabolic characteristics of different microorganisms, which can be revealed through their specific biochemical reactions.
In this test, a series of biochemical assays are performed on the unknown microbe to assess its ability to metabolize or produce certain compounds. These assays typically involve adding specific substrates or reagents to a growth medium and observing the resulting reactions, such as color changes, gas production, or the formation of precipitates.
By analyzing the pattern of reactions exhibited by the microorganism, trained laboratory personnel can compare the results to established databases or reference guides to identify the microbe. Each microorganism has a distinctive set of metabolic capabilities, and the combination of positive and negative reactions in the biochemical test helps narrow down its identity.
Biochemical identification tests are commonly used in clinical microbiology, food microbiology, and environmental microbiology to identify pathogens, monitor food safety, or study microbial communities. They provide valuable information for determining appropriate treatment strategies, tracking disease outbreaks, and understanding the ecological roles of different microorganisms.
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How are the Domain Bacteria and the Domain Achaea similar?
Answer:
-They both have unicellular organisms
- They also both have autotrophes & hetertrophes
Which of the following is the ONLY action that can prevent eventual death from a tension pneumothorax?Select one:A. Early administration of high-flow oxygenB. Rapid administration of intravenous fluidsC. Decompression of the injured side of the chestD. Positive-pressure ventilation with a bag-valve mask
The ONLY action that can prevent eventual death from a tension pneumothorax is decompression of the injured side of the chest. A tension pneumothorax is a life-threatening condition that occurs when air enters the pleural cavity and cannot escape, causing a buildup of pressure that compresses the lungs and heart.
This can lead to respiratory failure and cardiac arrest if left untreated. Early administration of high-flow oxygen and rapid administration of intravenous fluids can help to stabilize the patient, but they will not address the underlying problem of the trapped air. Positive-pressure ventilation with a bag-valve mask may worsen the condition by increasing the pressure within the chest cavity.
Therefore, decompression, either through needle or chest tube insertion, is the most effective way to relieve the pressure and prevent further damage to the vital organs. It is important to recognize the signs and symptoms of a tension pneumothorax and act quickly to decompress the chest in order to improve the chances of a positive outcome.
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A measure of the nutrients a portion of food provides relative to the energy it provides is known as
A measure of the nutrients a portion of food provides relative to the energy it provides is known as
Nutrient Density#CarryOnLearning\( \mathfrak{WatanabeHaruto}\)
Which is the best evidence that the climate of a location has changed overtime
Answer:
direct surface temperature measurements. changes in rainfall and weather patterns. an increase in the frequency of extreme weather events.
Ice cores drawn from Greenland, Antarctica, and tropical mountain glaciers show that Earth's climate responds to changes in greenhouse gas levels. Ancient evidence can also be found in tree rings, ocean sediments, coral reefs, and layers of sedimentary rocks.
Strongest Evidence:
Scientists say the accumulation of heat in the oceans is the strongest evidence of how fast Earth is warming due to heat-trapping gases released by the burning of fossil fuels.
Which of the following statemetns is true of a typical animal?
a. They have a definite structure.
b. They have an independent structure.
c. They lack cell wall.
d. They can have chloroplast.
Answer:
They have an independent structure
The statement that is true of a typical animal is they lack a cell wall. The correct option is c.
What is a cell wall?The cell wall, which is located next to the cell membrane, also known as the plasma membrane, is the outer layer of a cell. As was already mentioned, all plant cells as well as those of fungi, bacteria, algae, and some archaea contain a cell wall.
All animals have multicellular cells, which make up an animal cell. Animal cells are distinguished primarily by the absence of a cell wall.
Animal cells lack elements like vacuole and chloroplast that are found in plant cells. Animal cells contain cell organelles like mitochondria, endoplasmic reticulum, ribosomes, and nuclei, which house the animal's genetic material.
Therefore, the correct option is c. They lack a cell wall.
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PLSSSS HELPPP!! What is one way that bacteria is essential to the cycling of nitrogen in an ecosystem, helping to maintain the overall health of the ecosystem? *
They release oxygen for plants to use during photosynthesis.
They fix nitrogen into a usable form for plants and animals.
They produce ammonia and nitrites for respiration.
They assimilate carbon dioxide into the soil for plants.
Answer:
They assimilate carbon into the soil for plants