Bacterial and viral infections of the brain are rare because the ________ prevents most viruses, proteins, and bacteria from entering the cerebrospinal fluid.

Answers

Answer 1

Answer:

blood-brain barrier

Explanation:

The brain is well protected against microbial invasion by cellular barriers, such as the blood-brain barrier (BBB) and the blood-cerebrospinal fluid barrier (BCSFB). In addition, cells within the central nervous system (CNS) are capable of producing an immune response against invading pathogens.


Related Questions

A.flowering plant located in one part of the garden is producing showy purple flowers. A plant in the same species in a different part
of the garden has bright pink flowers. When the pollen from one of these plants is transferred to the ovule of the other plant, seeds
and then offspring are generated. When these seeds are planted in a different place in the garden, the resulting plants are allowed to
flower, and data are gathered. Which statements predict the appropriate outcomes based on the inheritance patterns? Select ALL that
apply
A)
All offspring would be magenta in a codominance inheritance pattern
B)
All offspring would be magenta an incomplete dominance inheritance
pattern
All offspring would be magenta if the pH of the soil is intermediate to the
other two locations.
C)
D)
Half of the offspring would be magenta and half would be pink in a
codominance inheritance pattern
All offspring would be purple if this is dominant to pink according to a
simple Mendelian inheritance pattern
E)

Answers

Answer:

its B,C,andE

Explanation:

i just did the usa testprep

The appropriate outcomes based on the inheritance patterns is all the offspring would be magenta on incomplete dominance inheritance pattern, they are magenta is the pH of the soil is intermediate to the other two locations. Thus, the correct options are B, C, and E.

What is Inheritance pattern?

Inheritance pattern describes how the genetic variants are distributed in the families. These help in understanding the patterns which is crucial to predicting disease risk in the family members of an affected individual.

According to the data given, all the offspring would be magenta in an incomplete dominance pattern, offspring would be magenta if the pH of the soil is intermediate to the other two locations, and all the offspring would be purple if this is dominant to pink according to a simple Mendelian inheritance pattern.

Therefore, the correct options are B, C, and E.

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1. What makes up a phenotype of a plant or animal?
2. What are the genes that produce a phenotype?

3. The study of heredity is called _________________.

4. Who is considered the “father” of genetics?

5. Genes had two copies each. These copies are called ___________.

6. What are Mendel’s 4 findings from his study?

7. The nucleus contains genetic material, or ______. (This is short for _______________________.)

8. How many PAIRS of chromosomes do humans have?

9. True/False: All species have the same number of chromosomes.

10. What are the four kinds of bases that join together in DNA strands?

11. What three people were instrumental in discovering DNA?

12. ___________ _________ make up proteins, and ____________ provide the code to make those proteins.

13. The human genome contains ________________ genes.

14. Describe sequencing.

15. Human DNA is 96% identical to the DNA of ___________________.

16. What are mutations and what do they cause?

17. Adaptations are caused by a ________________ in the DNA of an organism.

18. Describe one way studying genetics of organisms can be beneficial?

19. What are some ethical concerns we have about genetic studies?

Answers

Answer:

KANDEL FAMILY

Explanation:

1=Denish Kandel

2=Sujata Kandel

3=Bishnu Kandel

4=Luna Kandel

What is gel electrophoresis used for? Select all that apply.
O A) It is used to sort DNA strands.
B) It is used to produce more DNA strands.
C) It is used to measure DNA strands.
D) It is used to break down DNA molecules.

Answers

Answer:

used to separate mixtures of DNA, RNA, or proteins according to molecular size

Gel electrophoresis is used for the separation of genetic material present in the cell such as DNA, RNA and even proteins. Thus, the correct option is A.

What is Gel electrophoresis?

Gel electrophoresis is a technique which is used to separate the genetic material such as DNA fragments, RNA and proteins on the basis of their size and charge. Gel Electrophoresis involves running an electric current through a gel containing the molecules of interest in it.

The principle of Gel electrophoresis is that the DNA or protein sample to be separated is loaded on to a porous gel placed in an ionic buffer. On the application of electric charge, each of the molecules having different size and charge will move through the gel at different speeds and therefore separates out.

Therefore, the correct option is A.

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Give an example of a buffer in the body.

Answers

Answer:  Several substances serve as buffers in the body, including cell and plasma proteins, hemoglobin, phosphates, bicarbonate ions, and carbonic acid.

Explanation:

What does a pyramid of biomass represent? A. Amount of living tissue within a tropic area.

B. Percentage of energy that’s passed through each tropic level.

C. Range of food webs found in one trophies level.

D. Number of total organisms within each trophic level.

Answers

Answer: B. Percentage of energy that’s passed through each tropic level.

Explanation:

I hope it's helpful

Answer

B

Explanation

What is plants?
Answer will be marked as brainlist. ​

Answers

Answer:

Plants are multicellular organisms in the kingdom Plantae that use photosynthesis to make their own food. There are over 300,000 species of plants; common examples of plants include grasses, trees, and shrubs. Plants have an important role in the world's ecosystems. ... The study of plants is called botany.

Please mark as brilliant answer

What are some possible applications of therapeutic cloning?

Answers

Answer:

Hey mate....

Explanation:

This is ur answer....

Other applications of therapeutic cloning include the diagnosis of epigenetically triggered cancer and the tailoring of a treatment using SCNT, the creation of animal models of human diseases, and could eventually lead to tissue engineering of organs de novo.

Hope it helps!

Brainliest pls!

Follow me! ♤

one more 20 points what is sun light ?

Answers

Answer: sun light are light that comes from sun only

Explanation:

Sunlight is the suns rays

Which organ system is used for smelling

Answers

olfactory system, the bodily structures that serve the sense of smell. The system consists of the nose and the nasal cavities, which in their upper parts support the olfactory mucous membrane for the perception of smell and in their lower parts act as respiratory passages.
olfactory system, the bodily structures that serve the sense of smell.

HOPE THIS HELPS!!! ;)

Plants use these ______ as food for growth, maintenance, reproduction

Answers

Answer:

Explanation:

Fertilizers

planets and moons shine in the sky due to reflected sunlight TRUE or FALSE
NO SITES PLEASE

Answers

Answer:

its true but internet should tell you that in a short amount of time

Describe how the digestive tracts of zebra and lions will differ based on their different diets.
(10 points pls help!!)

Answers

Answer: Zebras eat primary carbonation in the form of grasses keep in mind that zebras get their energy from eating grasses and lions get energy from eating the zebra

Explanation:

in which order do plants development​

Answers

Answer:

According to plant physiologist A. Carl Leopold, the properties of organization seen in a plant are emergent properties which are more than the sum of the individual parts. "The assembly of these tissues and functions into an integrated multicellular organism yields not only the characteristics of the separate parts and processes but also quite a new set of characteristics which would not have been predictable[by whom?] on the basis of examination of the separate parts."[7]

Growth

Leaf development

Flower development

References

Although chickens, chimpanzees, cows, and humans share a gene for insulin, two species are more closely related to one another than the others. Select the correct pair of species. (10 points)

A. chickens and cows
B. chimpanzees and cows
C. chickens and humans
D. chimpanzees and humans

Answers

As the rise of humans or the homosapins on the planet the earth was full of creatures from all races and they were located in different habitats and inches.  

The rise of man was initiated by the primates and marsupials and these later on lead to the development of monkey like large land animals. The gene of insulin is hared between the man and his processor chimpanzee.

Hence the option D is correct.

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The molecule is illustrated in figure ________.
A) is a saturated fatty acid B) stores genetic information
C) will be liquid at room temperature D) is a carbohydrate

Answers

The molecule is illustrated in the figure is an unsaturated fatty acid. These molecules are liquid at room temperature (Option C).  It is for that reason that unsaturated fatty acids are called oils.

The unsaturated fatty acids are liquid at room temperature, thereby they are known as oils (they are mainly found in plant fats).

The unsaturated fatty acids have one or more double bonds of carbon to carbon atoms.

Conversely, saturated fatty acids are solid at this temperature and do not have double bonds (they are mainly found in animal fats).

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What would most likely happen to a person who is not getting enough essential amino acids in his or her diet?
The body would synthesize the amino acids.
Muscle growth and repair would be limited.
Stored protein would break down.
The formation of proteins would increase

Answers

Answer:

Muscle growth and repair would be limited.

PLEASE HURRY IM ON A TIMER
What causes the differences in physical characteristics like hair color among people?
A. different versions of genes
B. variations in DNA length
C. different numbers of chromosomes
D. variations in cell nucleus size ​

Answers

A. Different versions of genes.

The dna length doesn’t even matter.
The amount of chromosomes doesn’t make people different.
And all nuclei are the same size in the cell even though they all perform different functions

Answer:

i think B

Explanation:

:)))))

write the two importance of cilia in ciliated protozoan​

Answers

Explanation:

They are primarily responsible for locomotion, either of the cell itself or of fluids on the cell surface. They are also involved in mechanoreception. There is even a class of microorganisms named for these small structures. Ciliates are protozoans that possess cilia which they use for both locomotion and feeding.

Help please, 30 points.
*VIEW ATTACHMENT BELOW*
Which represents cellular respiration. Hint: There is only 1 process for photosynthesis?

Ignore the answers I put in at the bottom, I don't know if I did them right.

Photosynthesis:
Respiration:

Answers

Answer:

Answer:

Explanation:

Answer:

Photosynthesis: photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.

If a mutation occurs such that splicing does not remove one of the introns in a gene, what effect will this have on the protein encoded by that gene

Answers

Translation will continue, but it is likely that a nonfunctional or aberrant protein will be made as a result of this effect.

Mutation is described as the alteration in the genetic sequence caused by varying effects. Diseases and exposure to dangerous materials or elements (like x-rays) can cause mutation.

However, when alteration in a genetic sequence is effected such that the splicing that occurs prior to mRNA translation, does not remove a segment of a DNA or RNA molecule (which does not code for protein), and this will disrupt the gene sequence. Although, translation will continue, but the protein synthesised will be a nonfunctional or abnormal one.

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3. Would a cliff in the desert or a cliff along the seashore experience more weathering? Explain your answer.​

Answers

Answer:

A sea shore would have more weathering, because the gust of wind from the shore line will surley weather out the mountain, including the waves washing out rocks.

Explanation:

Pls give brainliest

A seashore would experience more weathering than the desert. This is because of the gust of wind on the cliff of the mountain.

What is Weathering?

Weathering can be considered as the breaking down or dissolving of rocks and minerals on the Earth's surface. Once a rock or mineral has been broken down by the process called erosion, it transports the small bits of rocks and minerals away from each other. Water, acids, salt, plants, animals, and change in temperature are all the agents of weathering and erosion.

A cliff along the seashore would experience more weathering, because of the gust of wind from the shore line. This will surely weather out the mountains, including the waves washing out the rocks and minerals.

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The eyes of some birds contain cells that detect ultraviolet (UV) light.
UV light is reflected by some fruits and the urine of small mammals.
Explain how birds that detect UV light have evolved from birds that could not detect
UV light
[6 marks

Answers

Birds that detect UV light have favorable characteristics that enable them to survive and reproduce. These  characteristics are passed on to their offspring.

According to Darwin's theory of evolution, organisms that are better adapted to their environment live long enough to survive and reproduce and pass on these favorable traits to their offspring.

Since birds depend on these fruits for food and these fruits reflect UV light. A bird that can not detect UV light will find it difficult to obtain food. Hence, birds that have developed the ability to detect UV light will live long enough and reproduce, passing on these favorable characteristics to their offspring. Hence, birds that can detect UV light appears from birds who do not originally detect UV light.

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which type of restraint equipment works well in controlling the head movement of a large dog?

Answers

Answer:

Standing restraint

Explanation:

place one arm under the dog's neck with the forearm holding the head

Standing restraint equipment works well in controlling the head movement of a large dog. The correct option is (C).

What do you mean by standing restraint?

Standing restraint is place one arm under the dog's neck with the forearm, holding the head. The other arm is placed around the animal's body to pull it close to the handler. Can be used on floor or table. Use.

Place one arm under the dog's neck and place your hand onto the side of the head. Pull the dog's head gently into your body. Place your other arm over and around the dog's hindlimbs. This technique can be used to encourage the dog to sit if it is standing, by applying gentle pressure.

There are three types of restraints: physical, chemical and environmental. Physical restraints limit a patient's movement. Chemical restraints are any form of psychoactive medication used not to treat illness, but to intentionally inhibit a particular behaviour or movement.

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Your question is incomplete, but most probably your full question was,

Which type of restraint equipment works well in controlling the head movement of a large dog?

A. Leash

B. Hands

C. Standing restraint

D. Towels

Petroleum and natural gas
form from

Answers

Answer:

formed from the remains of ancient marine organisms, such as plants, algae, and bacteria. Heat and pressure over millions of years turn it into natural gas.

Select the correct answer.
An enzyme in a cell became dysfunctional because of an alteration. As a result, the DNA strands would not separate to begin the replication process. Which enzyme has been affected?
A.
DNA ligase
B.
DNA polymerase
C.
helicase
D.
RNA primase
E.
topoisomerase

Answers

Answer:

C

Explanation:

because it separate the strands so it is affected so it cannot unwind the strand of the DNA double helix .

hope this helps :)

As in the given scenario, the enzyme DNA helicase is affected, the correct option is C.

What is the function of DNA helicase during DNA replication?

Helicases are a type of enzyme that is thought to be essential to all organisms. Their primary function is to unpack the genetic material of an organism.

Helicases are motor proteins that use ATP hydrolysis to move directionally along a nucleic acid phosphodiester backbone, separating two hybridized nucleic acid strands.

DNA helicases are required during DNA replication because they split double-stranded DNA into single strands, allowing each strand to be copied independently.

During DNA replication, DNA helicases unwind DNA at locations known as origins, which are where synthesis will begin.

If the DNA strands were unable to separate during the replication process, DNA helicase is the enzyme most likely to be affected.

The enzyme that unwinds the DNA and creates the replication bubble is known as DNA helicase.

Thus, the correct option is C.

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How does the mass of an object hitting you affect the force you feel on the hit? Provide evidence from your life.​

Answers

Answer:

Momentum is a concept or law that says if you ad speed or mass or both to a given object, the force you receive will be greater. so if a basball, say is coming at you you could easily catch it. But if a bowling ball was coming at you the same speed it would probably nock your head off.

Explanation:

Here is your equation for momentum

P=v*m

where P is momentum, V is velocity and M is mass.

A DNA segment has base order TCG TAT AAC. Which copy exhibits an insertion mutation without a frameshift?
A. TCG CCG TAT AAC
B. TCG TAT GAAC
C. TCC TAT AAC
D. TCG TAT AC

Answers

A. TCG CCG TAR AAC

Explanation:

I JUST DID THIS QUESTION

The nucleotide sequence TCG CCG TAT AAC exhibits an insertion mutation without a frameshift (Option A).

A mutation is any alteration in the nucleotide (DNA) sequence of the genome of an organism.

An insertion mutation is a type of mutation where one or more nucleotide bases are added to the original sequence.

A frameshift mutation is a type of mutation that alters the open reading frame of the nucleotide sequence, thereby modifying the linear order of amino acids that will be added from the new nucleotide sequence.

An insertion mutation of three consecutive nucleotides does not modify the open reading frame of the sequence because they encode for a new codon.

In conclusion, the nucleotide sequence TCG CCG TAT AAC exhibits an insertion mutation without a frameshift (Option A).

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Which two formulas contain 4 atoms of oxygen

Answers

Answer:

Methane CH4 1 carbon atom : 4 hydrogen atoms

Sulfuric acid H2SO4 2 hydrogen atoms : 1 sulfur atom: 4 oxygen atoms

The structural formula for methane contains symbols for one C atom and four H atoms, indicating the number of atoms in the molecule (Figure 1).

why behavioral perspectives is the most logical perspectives in your opinion. Explain

Answers

Answer:

The behavioral approach is the most logical perspective because it is easier to quantify and collect data and information when one is conducting a research.

Explanation:

WILL GIVE BRIANLIEST AND 30 POINTS!
When trying to reach a decision, what is happening in the brain?

A. The frontal lobe reaches out to the hippocampus.

B. The cerebral cortex accesses information stored in the thalamus.

C. The limbic system draws information from the cerebral cortex.

D. The hippocampus accesses memories stored in the thalamus.

Answers

The answer is A since the frontal lobe is in charge of personality characteristics desicion making and movement

When trying to reach a decision, multiple brain regions are involved in a complex network of communication and processing. However, out of the options given, the most accurate answer is C, "The limbic system draws information from the cerebral cortex."

What is a limbic system ?

The limbic system is a complex network of brain regions that are involved in emotional processing, motivation, and memory formation.

The cerebral cortex, which is the outer layer of the brain, is involved in many functions, including perception, consciousness, and decision-making. The limbic system communicates with the cerebral cortex, and draws upon information processed by it to make decisions.

The limbic system, which includes the amygdala, hippocampus, and other structures, plays an important role in processing emotions and memories, and influences decision-making by providing input on the emotional significance of different choices.

Additionally, the basal ganglia, which is a group of structures deep in the brain, is involved in decision-making by integrating information about the potential rewards and punishments associated with different choices and helping to select an appropriate action based on that information.

Therefore, the limbic system draws upon information processed by the cerebral cortex, and takes into account emotional and motivational factors to help us make decisions.

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