which structure provides protection by cushioning the brain?
Answer:
The arachnoid, fluid that cushions the brain.
Explanation:
Three layers of membranes known as meninges protect the brain and spinal cord. The delicate inner layer is the pia mater. The middle layer is the arachnoid, a web-like structure filled with fluid that cushions the brain. The tough outer layer is called the dura mater.
The basic pattern of blood flow from the lungs to the rest of the body is:
pulmonary vein; left ventricle; left atrium; vena cava.
O pulmonary artery; left atrium; left ventricle; aorta.
O vena cava; aorta; right ventricle; right atrium.
O pulmonary vein; left atrium; left ventricle; aorta.
Answer: pulmonary vein; left atrium; left ventricle; aorta
Explanation: I just did this question in the final exam of A&P and it was correct, hope this helps:)
The basic pattern of blood flow from the lungs to the rest of the body is: pulmonary vein; left atrium; left ventricle; aorta. The option (B) is correct.
What are pulmonary vessels?Pulmonary veins are blood vessels that carry oxygen-rich blood from your lungs to your heart. Your pulmonary veins are part of your body's pulmonary circuit. This is a system of blood vessels that moves blood between your heart and your lungs. This circuit also includes your pulmonary arteries.
For the exchange of gases to occur effectively, the lungs require a dual vascular supply known as pulmonary and systemic circulations. The pulmonary circulation is responsible for bringing deoxygenated blood from the body to the lungs for gaseous exchange and then returning oxygenated blood to the heart.
There are 4 total pulmonary veins—with 2 pulmonary veins coming from each lung, left and right—that empty into the left atrium of the heart.
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which is not involved with an inflammatory Response
A. Fever - increased temperature
B. Slowed blood flow
C. White blood cells move to the area of infected
D. inflammation in area
This is an inflammatory reaction to an infection in the body. Option D is correct.
What is the inflammatory response?When tissues are harmed by toxins, germs, trauma, heat, or any other cause, the inflammatory response (inflammation) ensues. A fever is induced by the body's attempt to destroy any infections with heat.
Histamine, bradykinin, and prostaglandins are among the substances released by injured cells. Because of these substances, blood vessels leak fluid into the tissues, producing swelling.
White blood cells migrate to the affected location to destroy any germs. Because white blood cells are primarily intended to aid in the killing of infections, sending white blood cells to destroy the pathogen is an inflammatory reaction.
Finally, inflammation results from the body's attempt to cleanse the contaminated region of microorganisms. Similar to the label “inflammatory,” the body will frequently create inflammation in an attempt to cleanse the body of any undesirable infections.
Therefore, option D is correct.
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define active transport in your own words
Answer: Define Active transport
Explanation: The moving of molecules or ions across the cell membrane.
Hope this helps!
at what point in sperm production do you hypothesize that loss of the testis-blood barrier would have an immunological effect on sperm production?
Answer:
when u do ittttt
Explanation:
A mother has type O blood and a father is heterozygous for type B blood. What are the chances of the offspring having type O blood?
Answer:
50 percent
Explanation:
O is a recessive trait. The father has a B and an O, using a punnet square you are able to determine that the possible outcomes are BO, BO, OO, and OO
What molecule is the source of information for transcription.
DNA is the molecule, which is the source of information for transcription.
• During the process of transcription, RNA polymerase is an enzyme, which is accountable for copying a sequence of DNA into a sequence of RNA.
• The RNA polymerase monitors the phenomenon of transcription.
• At the time of transcription, the information is stored within a molecule of DNA, which is further copied into a new molecule of messenger RNA.
Thus, the correct answer is DNA.
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Which unit should be used when measuring the height of an adult?
Answer:
Feet and inches, or centimeters unit should be used when measuring the height of an adult
Explanation:
What explains a child's growth over time?
New atoms and molecules are added to the body through cellular respiration.
New cells with identical DNA are created through cell division.
Answer:
New cells with identical DNA are created through cell division.
Explanation:
in turkeys the allele for brown feather is dominant to the allele for a yellow feather. if two heterozygous turkeys mate and produce offspring, what is the probability of an individual offspring having yellow feather?
50%
0
25%
100%
Answer:
50%
Explanation:
trust me because the heterozygous is so weird but I know this.
In turkeys the allele for brown feather is dominant to the allele for a yellow feather. if two heterozygous turkeys mate and produce offspring, than the probability of an individual offspring having yellow feather is 50%. Thus, option A is correct.
What will be produced in turkeys a dominant gene?In turkeys a dominant gene, R, produces the familiar bronze color; its recessive allele, r, results in red. Another dominant gene, H, results in normal feathers; its recessive allele, h, produces feathers without webbing, so that they resemble tufts of hairs.
Two bronze turkeys with normal feathers were mated, and their offspring consisted of eight bronze with normal feathers, three bronze with hairy feathers, two red with normal feathers, and one red with hairy feathers.
Since, this offspring received a recessive red, r, allele from each parent and a recessive hairy, h, allele from each parent, both parents must heterozygous for both characters: RrHh.
Therefore, In turkeys the allele for brown feather is dominant to the allele for a yellow feather. if two heterozygous turkeys mate and produce offspring, than the probability of an individual offspring having yellow feather is 50%. Thus, option A is correct.
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5 A prokaryotic cell is 5.0 um in length. A virus particle is 300 nm in length. How many times larger is the prokaryotic cell compared to the virus particle?
A 2
B 17
C 60
D 167
The prokaryotic cell is 17 times larger as compared to the virus particle.
Both values first need to be converted to the same unit.
5.0 um = 5.0 x [tex]10^-^6[/tex] m
300 nm = 3.0 x [tex]10^-^7[/tex] m
Dividing both values:
5.0 x [tex]10^-^6[/tex] m/3.0 x [tex]10^-^7[/tex] m
= 16.667
Hence, the prokaryotic cell is approximately 17 times bigger than the virus particle.
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5. Which of the following enclose their DNA in a nucleus?
b. bacteria
c. eukaryotes
d. viruses
Describe the relationship between the atmosphere and the geosphere regarding the movement of carbon.
Answer:
Several processes move carbon from the geosphere to the atmosphere. Volcanic eruptions release carbon dioxide from molten rock beneath the earth's surface. The production of cement that's used for homes, skyscrapers, streets and other hardscapes around the world releases an enormous amount of carbon dioxide.
Explanation:
how do identify veins in our body
Answer:
Veins are blood vessels in humans, and most other animals that carry blood towards the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the pulmonary and umbilical veins, both of which carry oxygenated blood to the heart. In contrast to veins, arteries carry blood away from the heart.
Explanation:
the words ""antigen"" and ""virus"" are interchangeable.
Answer:
False
Explanation:
A virus (which is a pathogen) has a lot of antigens on its surface, so they can't be used interchangeably.
1. Transcription happens in the _______ and translation happens at the _________.
a. mitochondria, chloroplasts
b. chloroplasts, mitochondria
c. nucleus, ribosome
d. ribosome, nucleus
2. Proteins are long chains of _________ assembled by _____ bringing them to the ribosomes.
a. nucleotides, mRNA
b. mRNA, nucleotides
c. amino acids, tRNA
d. tRNA, amino acids
3. What are three amino bases on the mRNA strand that codes for a specific amino acid is? What is the complementary bases on a tRNA molecule called?
a. Genetic code, DNA
b. DNA, RNA
c. Codon, anticodon
d. bird, dog
Answer:
1. C
2. C
3. C
Explanation:
Hope this helps.
when two haploid gametes unite, they create a diploid cell called a
2 haploid gametes combine to produce a diploid zygote
A mordant that is applied after the primary stain to bond chemically the alkaline dye to the bacterial cell wall is
Answer:
A mordant that is applied after the primary stain to chemically bond the alkaline dye to the bacterial cell wall is: safranin.
Explanation:
Helpppoo please no filessss
Answer:
i can’t see the answer choices
Explanation:
WHAT R THE ORGANSIMS THAT CAN BE SEEN BY LIGHT MICROSCOPE
Answer:
bacteria, mitochondria, human egg
While walking along the street, you and your friend see an elderly woman whose left arm appears to be swollen to several time its normal size. Your friend remarks that the woman must have been in the tropics and contracted a form of filariasis that produces elephantiasis. You disagree, saying that it is more likely that the woman had a radical mastectomy (removal of the breast because of cancer). Explain the rationale behind your answer.
What percentage of the earth’s land and what percentage of the earth’s oceans have been disturbed by human activities?
Answer:
the first 1 :)
Explanation:
QUIK QUESTION: have any of y'all be on probation lol? And if so help a gurley out what ya gotta do?
Answer:
yes
Explanation:
What are villi?
don't spam
Answer:
Villi are finger-like outgrowths on the inner walls of the small intestine. The villi increase the surface area for absorption of the digested food.
Answer:
Villi are tiny finger-like projections seen in the small intestine. They are more than millions of villi in the small intestine performing the following functions: The villi absorb nutrients from the food and cause their conversion into glucose.
Think about the importance of energy. Without a source of energy organisms cannot respond, build, reproduce, or carry out most of the functions of living things. From where does our energy come? Explain how Photosynthesis and Cellular Respiration are important in your everyday life. Be Scientific! 5-6 sentences!
Answer:
Cellular respiration and photosynthesis are important parts of the carbon cycle. The carbon cycle is the pathway through which carbon is recycled in the biosphere. While cellular respiration releases carbon dioxide into the environment, photosynthesis pulls carbon dioxide out of the atmosphere. The exchange of carbon dioxide and oxygen during photosynthesis and cellular respiration worldwide helps to keep atmospheric oxygen and carbon dioxide at stable levels.
Photosynthesis is a very important process in plants. It helps in the formation of glucose in plants. Cellular respiration takes place in human beings.
What is energy?Energy is the ability to do work. All living organisms require energy to do work. Energy is transformed to chemical energy in plant cells through a process called photosynthesis.
Plants utilise the chemical energy stored during photosynthesis in their cellular respiration for essential life functions. Energy is changed during both photosynthesis and cellular respiration.
The light-dependent and light-independent processes of photosynthesis are also important for plant management.
Therefore, Photosynthesis is a very important process in plants. It helps in the formation of glucose in plants. Cellular respiration takes place in human beings.
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what are processes of the water cycle that return water to the atmosphere
Answer:
Evaporation and transpiration change liquid water into vapor, which ascends into the atmosphere due to rising air currents.
Toll-like receptors are eukaryotic membrane proteins that bind with bacterial surface molecules and: ____________
a. cause the cell to phagocytize the bacteria.
b. activate the complement cascade.
c. cause the release of antibiotics to kill the bacteria.
d. form channels through which bacterial proteins can enter the eukaryotic cell.
e. cause the release of cytokines that trigger host defenses against the bacteria.
Answer:
release cytokines that trigger host defenses against the bacteria
Explanation:
Plz help! 15 points
• Would a plant be able to survive if the ground tissue was damaged?
Answer: I don’t think so because it needs the carbohydrates produced by the plant.
Explanation: No because the soil would be contaminating the soil until it reaches a point where the soil begins to tear and cracks will open in the soil and the air will be polluted, it would be an uninhabitable planet
specific enteroendocrine cells of the stomach, called g cells, are stimulated by partially digested proteins, caffeine, and rising ph. when stimulated, g cells secrete ________.
when stimulated, g cells secrets oocytes
The following list of events happens during meiosis:
Prophase I: Crossing over between homologous chromosomes occurs.
Metaphase I: Tetrads line up at the metaphase plate.
Anaphase I: Tetrads are separated.
Telophase I: Nuclear envelopes reform around the separated chromosomes.
Prophase II: Chromosomes condense.
Metaphase II: Chromosomes line up at metaphase plate.
Anaphase II: Sister chromatids separate into daughter chromosomes.
Telophase II: Nuclear envelopes reform around the daughter chromosomes.
Identify the answer choice that correctly lists the events from above that lead to new genetic combinations in the gametes.
(1 point)
1 and 2
1, 2, and 5
5 and 6
5, 6, and 7
Meiosis is a form of cell division that occurs in the sex chromosomes. This form of division ensures genetic diversity and also allow for the chromosome set to be halved.
The events from above that lead to new genetic combinations in the gametes include:
Prophase I: Crossing over between homologous chromosomes occurs.
Metaphase I: Tetrads line up at the metaphase plate
(1 and 2) option a.
During meiosis, possibilities of new genetic combinations occurs which allows for variations to exist between the offspring and parents. These ensures that offspring are not entirely identical to the parents and also allow for survival and other benefits.Learn more about genetic combinations: https://brainly.com/question/8418041
