The blood barrier system (BBS) consists of the a. blood-brain barrier and b. blood-CSF (cerebrospinal fluid) barrier.
The blood-brain barrier is a highly selective semipermeable border that separates the circulating blood from the brain and extracellular fluid in the central nervous system (CNS). It plays a crucial role in maintaining a stable environment for proper neuronal function and protects the brain from harmful substances. The blood-CSF barrier, on the other hand, is a similar selective barrier found at the choroid plexus, which is responsible for producing and regulating the cerebrospinal fluid. This barrier helps control the exchange of molecules and ions between the blood and the cerebrospinal fluid, providing a stable environment for the brain and spinal cord.
The dura mater, although part of the meningeal layers that protect the CNS, is not a component of the blood barrier system. It is the outermost, tough, fibrous protective covering of the brain and spinal cord, playing a significant role in the structural support and protection of the central nervous system. So therefore the the correct answer is a. blood-brain barrier and b. blood-CSF (cerebrospinal fluid) barrier. are the blood barrier system (BBS).
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How is the brain involved with the senses and what is the relationship to the person to the way reacts to objects
Answer:
The five senses collects informations from the surrounding and sends to the brain.
Explanation:
The brain through the help of the five senses helps a person to react to objects in their surroundings.
The five senses of touch sight, smell, hearing and taste all have their special sensors. These sensors are what picks messages from objects and sends to the brain. The brain then interprets the message received by the person from any of the senses.
On which side of the mountain would you be most likely to find a forest?
Answer:
Mountain lands provide a scattered but diverse array of habitats in which a large range of plants and animals can be found. At higher altitudes harsh environmental conditions generally prevail, and a treeless alpine vegetation, upon which the present account is focused, is supported. Lower slopes commonly are covered by montane forests. At even lower levels mountain lands grade into other types of landform and vegetation—e.g., tropical or temperate forest, savanna, scrubland, desert, or tundra.
The largest and highest area of mountain lands occurs in the Himalaya-Tibet region; the longest nearly continuous mountain range is that along the west coast of the Americas from Alaska in the north to Chile in the south. Other particularly significant areas of mountain lands include those in Europe (Alps, Pyrenees), Asia (Caucasus, Urals), New Guinea, New Zealand, and East Africa. The worldwide distribution of mountain lands is shown in Figure 1.
Figure 1: Worldwide distribution of mountain lands.
Explanation:
How does the Department of Environmental Protection try to prevent water breaks from happening? Answer
Answer:
water mains break. And when they do, they disrupt the lives of those serviced by them. Breaks can close down roads, cause damage to property and generally wreak havoc on the area around it. So why does it happen? This simple guide can help explain it to your customers.
Explanation:
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Ribosomes assemble proteins from___?
DNA
amino acids
mitochondria
cytoplasm
Answer:
Amino acids.
Explanation:
As a senior high school student, is it important for you to participate in any physical
activities especially in this time of pandemic? Why?
Answer: I believe that it should be the student's choice and not forced upon them, though it is important for them to get some sort of exercise to stay healthy. During this pandemic, kids have an excuse to not do sports if they or their parents aren't comftoable with doing any extracurriculars after school.
Explanation:
How do trees and forests evolve over time?
Answer:
The particular changes that take place are influenced by the amount of light, nutrients, and water available to the plants. The gradual change in species composition and replacement of some forest species with others over time or after a disturbance is called succession.
Explanation:
Answer:
The particular changes that take place are influenced by the amount of light, nutrients, and water available to the plants. The gradual change in species composition and replacement of some forest species with others over time or after a disturbance is called succession.
Explanation:
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(brainliest please, if possible)
What objects did scientists use to help determine the age of the Earth? *
Which of the 8 characteristics prove that a virus is or is not considered living?
Answer:
Nonliving characteristics include the fact that they are not cells, have no cytoplasm or cellular organelles, and carry out no metabolism on their own and therefore must replicate using the host cell's metabolic machinery.
Explanation:
Viruses lack membranes. Hence, they do not show characteristics of life until they enter a living cell. On entering the living cell they use the cell machinery to multiply.
B cells can divide to form plasma cells. Each plasma cell contains many mitochondria
and an extensive endoplasmic reticulum. Referring to the function of plasma cells in your answer, explain why these features are important adaptations.
Answer:
Explanation:
The presence of mitochondria and an extensive endoplasmic reticulum are the features that are important for adaptations of the plasma cell because plasma cells (white blood cells) secrete immune proteins also called antibodies which only formed due to the presence of endoplasmic reticulum whose function is to formed proteins for the cell so that's why plasma cells have large sized endoplasmic reticulum.
I WILL GIVE BRAINLIEST PLEASE HELP, DUE IN 30 MINUTES
Fill in the blanks:
Law of Segregation: Mendelian principle explaining that because each plant has ___ different alleles it can produce __ different types of __. During fertilization, male and female gametes randomly __ to produce four combinations of alleles.
Word Bank: (picture below)
Answer:
I think it goes like this:
Explanation:
Law of Segregation: Mendelian principle explaining that because each plant has 2 different alleles it can produce 2 different types of genes. During fertilization, male and female gametes randomly pair up to produce four combinations of alleles.
Write your question here (Keep it simple and clear to get the best answer). Define the tearm physicology?
Correct question: Write your question here (Keep it simple and clear to get the best answer). Define the term physiology?
Answer: physiology is the study of how the systems of the body works, and the ways in which their integrated cooperation maintains life and health of the individual.
Explanation:
The goal of physiology is to explain the physical and chemical factors that are responsible for the origin, development and progression of life. Each type of life, from the simple virus to the largest tree or the complicated human being, has its own functional characteristics.
In the study of the human physiology, we attempt to explain the specific characteristics and mechanisms of the human body that make it a living being. The very fact that we remain alive is almost beyond our control, for hunger makes us seek food and dear makes us seek refuge. Sensation of cold make us look for warmth.
Therefore in a simple term, PHYSIOLOGY is the study of how the systems of the body works, and the ways in which their integrated cooperation maintains life and health of the individual.
What allele combination results in type A blood?
what are the importance of labour as a factor of production
Answer:
hope this is useful
Explanation:
Labour is an active factor of production. It is the factor that starts production. Land and Capital alone cannot start production, so they are passive factors. They need the active factor of production, i.e. labour to be productive themselves.
When a plant or animal is no longer found anywhere on Earth, it is described as
being
locally extinct
geographically extinct
biologically threatened
biologically extinct
Answer:
B. Geographically extinct
Explanation:
Lets take a moment to look at the words provided. Geographical means physical features of an area, or relating to geography. It can also relate to when we are talking about information on the Earth's surface. Extinct means that the organism is no longer alive, and that there are none left of its species. So, putting the two words together, geographically extinct means that the organism is no longer found on Earth.
Hope this helps!
Panna
What is an area where an organism lives?
a. niche
b. community
c. habitat
d. population
Answer:
c)Habitat is an area where an organism live
the frequency of a wave in a stretched string depends on the length L, tension T and linear density m with dimension ML-1 . deduce the formula for f in terms of L , T and M using dimensional analysis
Answer:
[tex]f = \frac{1 }{L}\sqrt{\frac{T}{m} }[/tex]
Explanation:
Let the frequency ,
[tex]f = L^{x}T^{y}m^{z}[/tex]
Now the unit of frequency is hertz = s⁻¹ = T⁻¹ where T is time, tension T = kgm/s² = MLT⁻¹ and linear density m = kg/m = ML⁻¹.
So,
[tex]T^{-1} = L^{x}[MLT^{-2} ]^{y}[ML^{-1} ]^{z}\\[/tex]
collecting the like bases, we have
[tex]T^{-1} = [L^{x + y -z}][M^{y + z} ][T^{-2y} ] \\L^{0} M^{0} T^{-1} = [L^{x + y -z}][M^{y + z} ][T^{-2y} ][/tex]
Equating powers on both sides, we have
x + y - z = 0 (1)
y + z = 0 (2)
-2y = -1 (3)
From (3), y = 1/2
From (2), z = -y = -1/2
Substituting y and z into (1), we have
x + y - z = 0
x + 1/2 - (-1/2) = 0
x + 1/2 + 1/2 = 0
x + 1 = 0
x = -1
So,
[tex]f = L^{x}T^{y}m^{z}\\f = L^{-1}T^{\frac{1}{2} }m^{\frac{-1}{2} }[/tex]
[tex]f = \frac{1 }{L}\sqrt{\frac{T}{m} }[/tex]
Answer fast please. !!!!!!!!!!!!!!!!!!A geologist who needs to curricula to rock formations in different areas can match exposed rock layers
true or false
Answer:
A geologist who needed to correlate two rock formations in different areas could match exposed rock layers? A geologist who needed to correlate two rock formations in different areas could match exposed rock layers. TRUE.Explanation:
Answer:
true
Explanation:
state birth control methods according to Islam view
help me
Answer:
There is no single attitude to contraception within Islam; however eight of the nine classic schools of Islamic law permit it. But more conservative Islamic leaders have openly campaigned against the use of condoms or other birth control methods, thus making population planning in many countries ineffective.
What activities can increase the amount of atmospheric CO2?
Answer:
Human activity is the main cause of CO2
Your body's metabolism is controlled by the thyroid gland. What's the best synonym for "metabolism?"
A The rate at which your cells use energy
B Sleep cycle
C Sexual maturity
D Body temperature
Answer:
A The rate at which your cells use energy
Explanation:
Answer:
A. The rate at which your cells use energy
Explanation:
Ever heard of something being "metabolized"? It's converted to energy we use.
Have a great day!
Which feature do both roundworms and segmented worms have?
A They are usually microscopic.
B They lack a circulatory system.
C They have setae covering their bodies.
D They have a one-way digestive system.
Answer:
D
Explanation:
why cant you touch your palm to your shoulder? (on the same arm)
Answer: cause
Explanation:
Some people can some cant
what is the main product of the light-dependent reaction
Answer: The light-dependent reactions convert light energy into chemical energy, producing ATP and NADPH.
Explanation:
Process performed by plants (producers) using the sun's energy to make their own food.
A. Conduction
B. Photosynthesis
C. Fission
D. Fusion
Answer: B.Fotosintesis
Explanation:
Answer:
option B
Explanation:
photosynthesis is the correct answer.
plz mark my answer as brainlist plzzzz.
hope this will be helpful to you.
how are yarns made up of?
Answer:
Yarn is a strand composed of fibres, filaments (individual fibres of extreme length),... Yarns are made from both natural and synthetic fibre, in filament or staple form. Filament is fibre of great length, including the natural fibre silk and the synthetic fibres.
Answer:
cotton you can get cotton from sheep
During the Krebs Cycle, high-energy electrons and hydrogen ions are transferred to carrier molecules to form NADH and FADH2. What are the two other molecules released during the Krebs Cycle?
Answer:
During the Krebs cycle, pyruvic acid from glycolysis is used to make carbon dioxide, NADH, ATP, and FADH2. ATP NAD+ NADH Citric acid is broken down into a 5-carbon compound, then into a 4-carbon com- pound. Along the way, two more molecules of CO2 are released, and electrons join NAD+ and FAD, forming NADH and FADH2.
Explanation:
Answer:
The Krebs cycle uses pyruvic acid from glycolysis to produce carbon dioxide, NADH, ATP, and FADH2.
ATP Citric acid is decomposed into a 5-carbon compound, which is subsequently decomposed further into a 4-carbon compound.
Along the way, two additional molecules of CO2 are released, and electrons join NAD+ and FAD to form NADH and FADH2.
Explanation:
How do free energy machines work
Answer:
The machine is plugged into an electrical source, which gets the motor's wheel spinning. The machine is then unplugged and the wheel keeps spinning under its own inertia. Then electrical energy is extracted from the spinning wheel.
Explanation:
Answer:
spinning electromagnetic
Explanation:
What is the carrying capacity of the graph?
The carrying capacity on a graph is the horizontal asymptote as X tends toward + .So you are looking at the y-value for your carrying capacity.
what do u mean by being sick ?
Answer:
umm that I don't feel good
Answer:
don't know what you mean... but having an infection, virus, disease, or general illness...?
Explanation:
Hope this helped! Good luck! :)
A condition that describes an individual that carries two different alleles of a gene.
Answer:
Het erozygous
Explanation:
People with alleles that are the same are hom ozygous for the physical trait. Ones with two different alleles are het erozygous.
There is no space, just didn't let me spell it correctly.