cerebrospinal fluid is formed from blood by clusters of capillaries in the brain known as ________.
Answers
Cerebrospinal fluid is formed from blood by clusters of capillaries in the brain known as choroid plexuses.
These clusters of capillaries are located in the ventricles, or hollow cavities, of the brain and the central canal of the spinal cord. The choroid plexuses act as a filter, taking in essential nutrients and proteins from the blood and releasing them into the CSF.
This process is known as ultrafiltration. The CSF also contains electrolytes, such as sodium, potassium, and chloride. These electrolytes play an important role in maintaining the proper balance of body fluids. The CSF is constantly flowing around the brain and spine, providing cushioning and protection for the brain and spinal cord.
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Related Questions
Globular proteins are usually all EXCEPT?
a. Insoluble in water.
b. Roughly spherical.
c. Folded so that the hydrophobic amino acids are in the interior of the molecule
Answers
Globular proteins are usually insoluble in water.
In terms of structure, globular proteins are folded in such a way that their tertiary structures are made up of polar amino acids that are ordered on the exterior and the non-polar amino acids that are placed on the inside. Globular proteins are typically spherical in shape.
They are also referred to as sphero-proteins, and they have a mediocre water solubility. Because the non-polar amino acids on the inside of the protein globules, which are not in direct contact with water, make this type of protein soluble. Polar amino acids are present on the globules' exterior, where they interact with water to turn it into a soluble material.
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what is referred to as pain, and how is it useful in diagnosing internal disorders?
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Pain is defined as an unpleasant sensory and emotional experience associated with actual or potential tissue damage or described in terms of such damage. Pain is essential in diagnosing internal disorders because it serves as a warning signal that the body is experiencing injury or tissue damage.
Doctors can use pain to pinpoint the location of the internal disorder, as well as to determine its severity.
Pain is defined as a discomfort, distress, or suffering caused by damage or illness to a part of the body. Pain can be caused by injury, surgery, illness, emotional distress, or chronic conditions such as arthritis. Pain can be experienced in different ways depending on the type, location, and severity of the injury or illness. It can be sharp, dull, burning, throbbing, stabbing, aching, or cramping.
Additionally, pain can be classified as acute or chronic depending on its duration.Acute pain is sudden and typically lasts less than three months. It is typically caused by tissue damage or injury and is often accompanied by inflammation. Acute pain is a warning sign that the body is experiencing injury or tissue damage. It serves as a protective mechanism to prevent further damage or injury to the affected area.
Referred pain can be caused by a problem in an internal organ, which can make it difficult to diagnose. Doctors use pain to help diagnose internal disorders by taking a detailed medical history, performing a physical exam, and ordering diagnostic tests such as blood tests, imaging tests, or biopsies. In some cases, pain may be treated with medications or other therapies to help alleviate discomfort.
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What would you expect to occur if you were to repeatedly lift 25 pounds over your head for 1 minute, rest for 1 minute, and then repeat the exercise?
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Can someone explain what polymers, monomers, and isomers are to me? What is the difference between isomers and polymers? Thanks, I'm studying for a test in about a week :)
Answers
Answer:
A monomer is a single unit of a substance (eg. Amino acid). A polymer is a chain of monomers (eg protein). An isomer is a molecule of an element with the same chemical formula but a different chemical structure (sucrose and maltose).
Explanation:
Help as fast as possible please will give brainlist
Answers
Answer:
Hey!
Your answers are:
CONDENSATION--from a gas to a liquid
DEPOSITION--from a gas to a solid
I HOPE THIS HELPS YOU!which of these characteristics are adaptive? group of answer choices pathogen receptors are extremely varied responds more quickly upon secondary exposure to pathogens response takes several days to weeks to develop all of the answers are adaptive characteristics none of the answers are adaptive characteristics
Answers
The characteristics that are adaptive are the ones that enable the body to respond quickly to pathogens and cause an adaptive immune response.
The receptors of pathogens are extremely varied, and the response takes several days to weeks to develop. Both of these characteristics are adaptive. The immune system is a complex network of cells, organs, tissues, and molecules that interact with one another to protect the body from pathogens. It is made up of two main components: the innate immune system and the adaptive immune system. The innate immune system is the first line of defense against pathogens, and it includes physical barriers like skin and mucous membranes, as well as cellular and molecular defenses that recognize and respond to common pathogens. The adaptive immune system, on the other hand, is a more specialized response that recognizes and responds to specific pathogens. This system involves the production of antibodies, which are proteins that bind to specific pathogens and help to neutralize them. The characteristics that are adaptive are the ones that enable the body to respond quickly to pathogens on secondary exposure and cause an adaptive immune response. The receptors of pathogens are extremely varied, and the response takes several days to weeks to develop. Both of these characteristics are adaptive.Learn more about adaptive immunity: https://brainly.com/question/9979134
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Status
This test will not impact your grade.
Exam
Large animals, like hippos, spend
much of their time in water. Why
do they do this?
A. It reduces their mass.
B. It reduces the effects of gravity.
C. It increases their weight.
D. It increases the effects of gravity.
Answers
Help!!
Describe how plants and animals each contribute to the survival of the other.
Answers
Answer: Plants contribute to the survival of animals:
Food and Energy: Plants are primary producers that convert sunlight into energy through photosynthesis. They provide food sources for herbivorous animals, including insects, mammals, and birds. By consuming plants or plant parts, animals obtain the nutrients and energy they need for survival.
Shelter and Habitat: Plants provide shelter and habitats for a wide range of animal species. Trees, for example, offer nesting sites for birds and provide protection from predators. Plants also create microhabitats within their structures, such as burrows formed by plant roots, which offer shelter to small animals.
Oxygen Production: Through photosynthesis, plants release oxygen into the atmosphere. Animals, including humans, rely on this oxygen for respiration, enabling them to breathe and survive. Oxygen-rich environments created by plants support the survival of aerobic organisms.
Animals contribute to the survival of plants:
Pollination: Animals, particularly insects, birds, and bats, play a crucial role in pollinating plants. As they feed on the nectar or pollen of flowers, they inadvertently transfer pollen grains between flowers, facilitating fertilization and reproduction in plants. This enables the production of seeds and ensures the genetic diversity and survival of plant populations.
Seed Dispersal: Many plants rely on animals for seed dispersal. Animals eat fruits or seeds and subsequently excrete the undigested seeds in different locations. This dispersal mechanism helps plants colonize new areas, reduces competition among offspring, and increases their chances of survival and successful germination.
Nutrient Cycling: Animals contribute to nutrient cycling by acting as seed dispersers, pollinators, or decomposers. Through their movement and consumption, they help distribute nutrients within ecosystems, facilitating their uptake by plants. Animal waste products, such as feces, also serve as natural fertilizers, enriching the soil and providing essential nutrients for plant growth.
Explanation:
What factor determines when an animal species will enter an ecosystem insuccession?A. Food availabilityB. PioneersC. CompetitionD. Minerals
Answers
Ecology: Ecological succession
Ecological succession is the process of change in the species present in an ecosystem over time.
There are two types of succession:
• Primary succession,, where an area that hasn't had any life before begins to be colonized, such as a new island.
,• Secondary succession,, where there is a disturbance, such as a fire, that removes the organisms living in that area.
The changes in plants depend on changes in the soil and interactions with other organisms, such as competition for light with other plants and feeding from herbivores.
On the other hand, the changes in animals depend on sources of food and predation interactions.
This means the correct answer would be A. Food availability.
When Nemo’s father says “a fish can breathe out here” – fish use this organ system to breath
Answers
during which phase of mitosis do the nuclear envelope and nucleoli disappear?
Answers
The nuclear envelope and nucleoli dissolve during prophase of mitosis.
In the process of mitosis, sometimes referred to as cell duplication or reproduction, a cell divides into two genetically identical daughter cells. Chromosome duplication and dispersion, the biological processes that contain genetic material, are what are meant when the term "mitosis" is used precisely. Early prophase marks the beginning of the cell's preparation for chromosomal division, with certain structures being destroyed and others being built. The chromosomes are beginning to condense (making them easier to pull apart later on). Starting to form is the mitotic spindle. Strong threads that make up the spindle are known as microtubules, which serve as the cell's "skeleton." It moves and organises the chromosomes during mitosis. The spindle enlarges as the centrosomes split.
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which term describes the results of blood tests that reveal a person's total cholesterol, triglycerides, and various lipoproteins?
Answers
Answer:
A lipid profile
Explanation:
A lipid profile is a panel of blood tests used to find abnormalities in lipids, such as cholesterol and triglycerides.
For the rock formation shown above make a hypothesis of what processes went into it's formation.
Answers
Answer:
Sedimentary RocksSedimentary rocks are formed from pieces of other existing rock or organic material. There are three different types of sedimentary rocks: clastic, organic (biological), and chemical. Clastic sedimentary rocks, like sandstone, form from clasts, or pieces of other rock. Organic sedimentary rocks, like coal, form from hard, biological materials like plants, shells, and bones that are compressed into rock. The formation of clastic and organic rocks begins with the weathering or breaking down, of the exposed rock into small fragments. Through the process of erosion, these fragments are removed from their source and transported by wind, water, ice, or biological activity to a new location. Once the sediment settles somewhere, and enough of it collects, the lowest layers become compacted so tightly that they form solid rock. Chemical sedimentary rocks, like limestone, halite, and flint, form from chemical precipitation. A chemical precipitate is a chemical compound—for instance, calcium carbonate, salt, and silica—that forms when the solution it is dissolved in, usually water, evaporates and leaves the compound behind. This occurs as water travels through Earth’s crust, weathering the rock and dissolving some of its minerals, transporting it elsewhere. These dissolved minerals are precipitated when the water evaporates. Metamorphic RocksMetamorphic rocks are rocks that have been changed from their original form by immense heat or pressure. Metamorphic rocks have two classes: foliated and non-foliated. When a rock with flat or elongated minerals is put under immense pressure, the minerals line up in layers, creating foliation. Foliation is the aligning of elongated or platy minerals, like hornblende or mica, perpendicular to the direction of pressure that is applied. An example of this transformation can be seen with granite, an igneous rock. Granite contains long and platy minerals that are not initially aligned, but when enough pressure is added
5. What are virus hoaxes? Why are the hoaxes sometimes more dangerous than an actual virus?
Answers
Answer:
An actual computer virus is a malicious software, often known as malware, that can harm a computer and its users.
Virus hoaxes are false or misleading information about viruses that circulate through various communication channels.
They can be more dangerous than actual viruses due to their ability to spread quickly, cause panic, and undermine effective public health measures.
Virus hoaxes are deceptive messages or claims that often exaggerate the severity or impact of a particular virus. They can be spread through social media, email chains, or word of mouth. These hoaxes may include misinformation about symptoms, transmission methods, or false remedies, leading people to take ineffective or even harmful actions.
What makes virus hoaxes particularly dangerous is their potential to create panic and misinformation at a rapid pace. The viral nature of social media and other communication platforms allows these hoaxes to reach a wide audience within a short period. As a result, people may make decisions based on false information, such as avoiding necessary medical treatment, taking unnecessary precautions, or spreading fear and misinformation to others.
Moreover, virus hoaxes can undermine public health efforts by diverting attention and resources from legitimate preventive measures. They can erode trust in healthcare authorities and disrupt the dissemination of accurate information, making it harder for individuals to make informed decisions and follow recommended guidelines.
This can have severe consequences, especially during outbreaks or pandemics, where timely and accurate information is crucial for public safety. Therefore, it is essential to verify the credibility of information and rely on trusted sources to mitigate the risks associated with virus hoaxes.
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Help!!
Biology A
30 Ptss!!
Answers
Answer:
d
Explanation:
Photosynthesis is manufacturing of food(glucose) and the release of by-product (oxygen) with the use of sunlight, carbon dioxide, water and other minerals.
Nastic movements and solar tracking; In nictinastic movements, the leaves:
a. they roll up during the day and unroll at night.
b. they curl around a support such as a fence post.
c. they have their stomata open at night and closed during the day.
d. they are extended during the day and folded at night
e. they are oriented horizontally in the dark and vertically in the light.
Answers
In nictinastic movements, the leaves roll up during the day and unroll at night.(option a)
Nictinastic movements are a type of nastic movement that is caused by the change in light intensity. In the case of nictinastic movements, the leaves roll up during the day and unroll at night. This is because the leaves contain a pigment called phytochrome, which is sensitive to light.
When the phytochrome is exposed to light, it changes shape and triggers the production of a hormone called auxin. Auxin then causes the cells on the underside of the leaf to swell, which causes the leaf to roll up. At night, when there is no light, the phytochrome reverts to its original shape and stops producing auxin. This allows the cells on the underside of the leaf to shrink, which causes the leaf to unroll.
Nictinastic movements are thought to have a number of benefits for plants. For example, rolling up the leaves at night helps to protect them from cold temperatures and from being eaten by insects. Additionally, rolling up the leaves helps to reduce the surface area of the leaf, which reduces the amount of water that is lost through transpiration.
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Why does temperature change always move from regions of hot to regions of cold?
Answers
When two bodies with different temperatures come into thermal contact, they exchange heat energy until they attain thermal equilibrium, at which point the cold body warms up and the hot body cools down.
What is thermal conduction?The process by which heat is transmitted from an object's hotter end to its colder end is known as conduction.
The term "thermal conductivity" refers to an object's capacity to transfer heat, and it is represented by the letter k. Heat naturally moves in the direction of a temperature gradient.
Thermal conduction is the term used to describe the flow of energy (heat) caused by temperature variations between nearby body parts.
The kinetic energy of the atoms in hot bodies is higher than that of the atoms in cold bodies.
The higher kinetic energy atoms attempt to move and collide with the lower kinetic energy atoms in order to preserve thermal equilibrium. As a result, heat can be transferred from a hot body to a cold body.
Thus, temperature change always move from regions of hot to regions of cold.
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using a genetic code chart and the mRNA codons provided in the table below, fill in the appropriate amino acids in the BLANK boxes.
Answers
Answer: easy
Explanation:
When the current pulse charges the bare membrane, the voltage rises as _____.
Answers
When the current pulse charges the bare membrane, the voltage rises as an exponential function.
When the current pulse charges the bare membrane, the voltage rises as an exponential function due to the charging of the capacitance of the membrane.
A bare membrane is a type of capacitor that stores electrical charge and has a capacitance. When a current pulse is applied to the bare membrane, it starts to charge and the voltage across the membrane rises.
The rate of rise of the voltage is determined by the capacitance of the membrane and the resistance in the circuit. The voltage rise is modeled as an exponential function because the charging of the capacitance is governed by an exponential differential equation.
The exponential rise of the voltage eventually reaches a maximum and starts to decay as the membrane approaches full charge. The final voltage across the membrane will depend on the initial conditions, the capacitance, and the resistance in the circuit.
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What does the phrase "water loss control" mean?
Read the excerpt from "Water Efficiency Strategies."
Water Loss Control—National studies indicate that, on
average, 14 percent of the water treated by water systems is lost
to leaks. Some water systems have reported water losses
exceeding 60 percent. Accounting for water and minimizing
water loss are critical functions for any water utility that wants to
be sustainable
o preventing water from being wasted due to leaks
O limiting the number of household sinks and toilets
O limiting use of dishwashers and washing machines
O preventing pipes from rusting and growing mold
Answers
Answer: Answer: preventing water from being wasted due to leaks
Explanation:
Water loss control has to do with the efforts which involves managing leakage to low levels.
From the excerpt, we can infer from the information given that 14 percent of the water treated by water systems is lost due to leaks. Therefore, the phrase "water loss control" simply means how water loss will be minimize.
The phrase "water loss control" means preventing water from being wasted due to leaks.
What is Water loss control ?A water loss control program helps to identify real or physical losses of water from the water system and. apparent losses, the water that is consumed but not accounted for.
Water loss control includes
utility efforts to manage leakage to economically low levels, andreducing metering and billing errors such that reliable measures of customer consumption are attained and sufficient revenue is garnered by the water utility.To know more about Water loss control here
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An accidental discovery led scientists to identify the _____ as one of the brain structures responsible for compulsions.
Answers
An accidental discovery led scientists to identify the cingulum as one of the brain structures responsible for compulsions. It is formed by a group of axons.
What is the cingulum?The cingulate cortex or cingulum, which is part of the limbic system, is a group of axons in the brain that project from the cingulate gyrus to the entorhinal brain cortex.
It has been proposed that the cingulum may be responsible for some types of aggressive and competitive behaviors in males.
This part of the brain (i.e., the limbic system) can be affected by different neurodegenerative diseases such as multiple sclerosis and Parkinson's disease.
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Ben measures the height of two bottles. One is 12 centimeters and the other is 15 centimeters. In millimeters what is the difference of the two heights
Answers
The difference in height between the two bottles is 30 millimeters.
To calculate the difference in height between the two bottles in millimeters, we need to convert the heights from centimeters to millimeters and then subtract one from the other.
First, we convert the height of the first bottle from centimeters to millimeters. Since there are 10 millimeters in a centimeter, we can multiply the height of 12 centimeters by 10 to get the height in millimeters:
12 centimeters * 10 millimeters/centimeter = 120 millimeters.
Next, we convert the height of the second bottle from centimeters to millimeters using the same conversion factor. We multiply the height of 15 centimeters by 10:
15 centimeters * 10 millimeters/centimeter = 150 millimeters.
Now that we have both heights in millimeters, we can calculate the difference. We subtract the height of the first bottle from the height of the second bottle:
150 millimeters - 120 millimeters = 30 millimeters.
Therefore, the difference in height between the two bottles is 30 millimeters.
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Compared to a maxillary first premolar a maxillary second premolar is most likely to?
Answers
Compared to a maxillary first premolar, a maxillary second premolar is most likely to have a smaller size and a single root.
It is situated in front of or preceding the molar teeth. especially: being or relating to those teeth of a mammal in front of the true molars and behind the canines when the latter are present.
What are premolar teeth?
Premolars, also known as bicuspids, are the permanent teeth located between the molars in the back of your mouth and your canine teeth, or cuspids, located in the front. Because premolars are transitional teeth, they display features of both molars and canines and primarily grind and break up food.
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Movement at the San Andreas fault is an example of:
a. Dip-slip
C. Tipping
b. Strike-slip
d. Subduction
Answers
Answer: B. Strike-slip.
Explanation:
The fault is slipping past on another, while striking itself.
Slide A has cells with a visible nucleus, mitochondria, a cell membrane, a cell wall, and chloroplasts.
Slide B has cells with a visible nucleus, mitochondria, and a cell membrane.
How should these slides be labeled?Immersive Reader
(9 Points)
Slide A, animal cells; Slide B, animal cells
Slide A, animal cells; Slide B, plant cells
Slide A, plant cells; Slide B, animal cells
Slide A, plant cells;Slide B, plant cells
Answers
Plant cells: eukaryotic. Relatively large. Have a nucleus, have mitochondria, sometimes have chloroplasts. Have a large central vacuole and a cell wall.
Define mitchondria?Small structures in a cell that are found in the cytoplasm (fluid that surrounds the cell nucleus). Mitochondria make most of the energy for the cell and have their own genetic material that is different from the genetic material found in the nucleus.
Mitochondria are known as the powerhouse of the cell because it is responsible for the extracting energy from food through cellular respiration. The energy is released in the form of adenosine triphosphate (ATP). It is an energy currency of the cell. Download the app to view unlimited solutions on app.
Mitochondria originated by permanent enslavement of purple non-sulphur bacteria. These endosymbionts became organelles through the origin of complex protein-import machinery and insertion into their inner membranes of protein carriers for extracting energy for the host.
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Explain in your own words what a dichotomous key is:
Answers
Answer:to know which animals belong to which classification or which group they are. And to know they features like how many legs and how many fingers like this. Like the animal what makes it special from others animals
Explanation: hope this help
What is composed of cells that produce hormones and secrete them into the bloodstream?.
Answers
Endocrine glands are made up of cells that release hormones into the bloodstream.
Endocrine glands are also known as ductless glands as they release certain chemical substances called as hormones directly into the bloodstream in the body. These hormones in turn, act on certain specific target organs in order to produce a certain effect.
Endocrine glands vary in shape as well as size. The important ones are the pituitary gland, thyroid gland, parathyroid gland, adrenal or supra-renal glands, pineal gland, etc. Hormones act as chemical messengers in the body. A hormonal imbalance in the body may lead to health-related problems such as obesity, elevated blood pressure or hypertension, etc.
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What are the two types of venomous snakes? Describe each type and include an example.
Answers
Answer:
The King Cobra and the Black Mamba
EXPLANATION:
The black mamba is a species of highly venomous snake belonging to the family Elapidae. It is native to parts of sub-Saharan Africa. First formally described by Albert Günther in 1864, it is the second-longest venomous snake after the king cobra; mature specimens generally exceed 2 m and commonly grow to 3 m
The king cobra, also known as the hamadryad, is a venomous snake species in the family Elapidae, endemic to forests from India through Southeast Asia. It is threatened by habitat destruction and has been listed as Vulnerable on the IUCN Red List since 2010. It is the world's longest venomous snake.
Answer:
The two types of venomous snakes are Elapine snakes, and Viperine snakes. Elapine snakes have shorter fangs and venom that paralyzes the respiratory system. Cobras and coral snakes are Elapine snakes. Viperine snakes have longer hollow fangs and venom that attacks red blood cells. Rattlesnakes are viperine snakes.
Explanation:
in a 3-point testcross, the nonrecombinant progeny are e f g and efg. double crossover progeny are ef g and e fg. which locus is in the middle?
Answers
A 3-point testcross is a type of genetic cross used to determine the relative order and distances between three loci on a chromosome
The cross involves a heterozygous individual for three linked genes (A-B-C) crossed with a homozygous recessive individual (aabbcc). The progeny are then analyzed to determine the order of the three loci and their genetic distances from each other.
In the given scenario, the nonrecombinant progeny are e f g and efg, which suggests that the e and g loci are on either side of the f locus. This is because nonrecombinant progeny are the result of no crossovers between the loci on the chromosome during meiosis.
The double crossover progeny are ef g and e fg, which tells us that the e and g loci are farthest apart from each other because the double crossover events occurred between the e and f loci and between the f and g loci. The f locus is in the middle because it is the only locus that is present in both the nonrecombinant progeny and the double crossover progeny.
Therefore, in the given scenario, the f locus is in the middle of the chromosome with the e and g loci on either side.
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What is the importance of the protein used in Method B during cellular transport?