Blood vessels are the important components of circulatory system. Blood vessels can be compared to irrigation network as they are the closed network of vessels which circulate blood to all parts of the body.
What are Blood vessels?Blood vessels are the tubes through which different components like gases, blood cells, nutrients are circulated in the body.
Blood vessels are divided into three main types depending upon their thickness- Artery, Vein and Capillary. Among the three, capillaries are the thinnest blood vessels and arteries are the thickest vessels.
Arteries are responsible for carrying oxygenated blood from the heart to different parts of the body. Veins carry deoxygenated blood from other parts of the body to the heart which is then transported to lungs for oxygenation. Capillaries are the blood vessels responsible for the exchange of gases at the site of alveoli.
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Does osmosis require the use of energy to transport water across a cell membrane?.
Which statement about genetic diseases is
TRUE?
A. Genetic diseases are NOT heritable.
B. Genetic diseases are CURABLE but not TREATABLE.
C. Genetic diseases are TREATABLE but not CURABLE.
C. Genetic diseases are TREATABLE but not CURABLE.
Answer:
C
Explanation:
cause it it is fool!!!!!!
hudson, w. h. et al. proliferating transitory t cells with an effector-like transcriptional signature emerge from pd-1 stem-like cd8 t cells during chronic infection. immunity 51, 1043–1058.e4 (2019).
T cell failure is a defining trait of both cancer and persistent viral infections. A PD-1+ Tcf-1+ CD8+ T cell subset with the ability to self-renew and differentiate into more terminally differentiated cells that downregulate Tcf-1 and express additional inhibitory molecules like Tim3 has been identified in recent studies of chronic lymphocytic choriomeningitis virus (LCMV) infection.
Here, we show that this terminally differentiated population is divided into two subgroups by the expression of the glycoprotein CD101. Initially differentiating into a transitory population of CD101-Tim3+ cells, stem-like Tcf-1+ CD8+ T cells later transformed into CD101+ Tim3+ cells. Recent CD101-Tim3+ cell proliferation in vivo, viral control, and expression of the chemokine receptor CX3CR1, pro-inflammatory cytokines, and granzyme B are all characteristics of these effector-like cells. Increased CD101-Tim3+ CD8+ T cell counts in response to PD-1 pathway inhibition raise the possibility that these recently formed transitional cells are essential for PD-1-based immunotherapy.To learn more about immunity visit:
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The green revolution changed agricultural methods and
allowed farmers to produce more food than ever before.
however, many scientists argue that these methods are
not sustainable.
which action would be most likely to increase future developments in science
and engineering relating to agriculture?
The actions are taken to increase development of science and agricultural are drip irrigation, more effective fertilizer and newly developed seed helped in proficient crop growth.
In what ways can agriculture contribute to sustainable development?Given that the agricultural industry has the ability to improve food security, reduce poverty, and lower child mortality through better nutrition, among other goals, it is well-positioned to contribute to the Sustainable Development Goals (SDGs, often known as the "post-2015" development agenda).
Crop rotation, interplant, implementing land forms, raised beds, water management and heat tolerant can be a help help to increase the development in agriculture.
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Please help me
I’m in need
This is pass due
The egg will hatch when it reaches a temperature of 36°C. Zone of Hatching Potential is the official name of this region. It ranges from 35 to 40.5°C.
What exactly is a zone of potential for a hatch is "Temperatures between 35 and 40.5°C (84.5 and 104.9°F) are permissible for egg emergence"
The ideal temperature (for hens) is 37.5 degrees Celsius (99.5 degrees Fahrenheit); above this temperature, the hatch rate will be reduced and there will be a greater proportion of deformed and crippled chicks.
Any temperature increase above 40.5°C (104.9°F) will result in the death of all embryos.
Growth will be hindered and mortality will rise at constant temperatures in this range, although below the optimal.
Once more, early embryos are more susceptible to persistent low temperatures than later embryos.
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Your question is incomplete. For full question please refer
At which temperature will the eggs hatch?
A) 22°C
B) 24°C
C) 28°C
D) 30°C
E) 36°C
Which term is defined as food components such as fibers that are not digested by the human body but are used as food by the gi bacteria to promote their growth and activity?
Prebiotic is a food component such as fibers that are not digested by the human body but are used as food by the gi bacteria to promote their growth and activity.
What are prebiotics?Prebiotics will stimulate the growth of bacteria that are beneficial to the body in the intestine. They will be found in fruits and vegetables, more than anything in those made up of complex carbohydrates such as fiber or starch. These foods are not digestible by the body, so the bacteria in the intestine will feed on these.
Therefore, we can confirm that prebiotic is a food component such as fibers that are not digested by the human body but are used as food by the gi bacteria to promote their growth and activity.
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Which term is defined as food components that are not digested by the human body but are used as food by the GI bacteria to promote their growth and activity?
Select one:
a. Symbiotics
b. Abiotics
c. Prebiotics
d. Probiotics
e. Postbiotics
Antibiotics - for example, penicillin - cannot be used to treat viral infections, such as the common cold. why?
Viruses are surrounded with the aid of using a shielding protein coating; they do not have mobileular partitions that may be attacked with the aid of using antibiotics like micro organism does. It is due to this that antibiotics do not paintings on viruses.
Because antibiotics best combat micro organism, and now no longer viruses, they may be typically useless in opposition to colds.Antibiotics harm the mobileular wall of residing organisms main to their death. Antibiotics are produced with the aid of using micro organism and fungi that deal with bacterial infections.
So, they can not kill viruses.No interactions have been located among amoxicillin and Day Relief Cold and Flu. However, this doesn't always suggest no interactions exist. Always seek advice from your healthcare provider.
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Leukocytes displaying red cytoplasmic granules when treated with wright's stain are most likely ________.
Leukocytes displaying red cytoplasmic granules when treated with wright's stain are most likely Basophil.
Each kind of granulocyte is diagnosed with the aid of using the shade of the granules while the cells are stained with a compound dye. The granules of the neutrophil are pink, the ones of the eosinophil are pink, and people of the basophil are blue-black.
Leukocytes have a bi-lobed nucleus with huge cytoplasmic unique granules which are eosinophilic, staining pink to pink. Basophils are 12 to15 µm in diameter, have bi-lobed or S-formed nuclei, and comprise cytoplasmic unique granules (0.five µm) in diameter that stain blue to purple.Basophils comprise huge cytoplasmic granules which difficult to understand the mobileular nucleus below the microscope while stained.
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Why would scientists find it useful to know the densities and volumes of different materials? Please respond in 1–2 complete sentences using your best grammar.
It is useful to know the densities and volumes of different materials as it helps in deducing various properties pf the material and also helps to perform certain calculation.
Density is defined as the mass of any substance divided by its per unit volume. Density is actually the measure of the degree of the compactness of any material. Usually, heavier substances are more dense the lighter ones.
Volume can be defined as the three-dimensional space any object can occupy in the space. The volume is measured in cubic units. The formula for calculating volume may differ from one object to another, depending upon its shape.
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How can rocks be turned into sediment?
The ________, a spot on the back of the retina, contains the highest concentration of cones in the retina.
The Fovea, a spot on the back of the retina, contains the highest concentration of cones in the retina.
What is Fovea?The fovea centralis, often known as the fovea, is a tiny depression located in the neurosensory retina that has the best visual acuity.
There are a lot of cones in the macula lutea, commonly known as the fovea. These are the retina’s light-sensitive cells that provide clear, center vision.
Is the region of the retina with the greatest concentration of cones also the region with the sharpest vision?The area that follows the spot of the retina located on the main axis of the eye is known as the fovea centralis. Since the fovea region of the retina contains the most cone cells, it offers the sharpest potential vision.
Where is the greatest concentration of cones?The 0.3 mm fovea centralis contains a strong concentration of cone cells.
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Listeria monocytogenes moves around inside host cells using their own cellular structures. which host cell structures does this bacterium normally hijack for movement?
Listeria monocytogenes moves around inside host cells using their own cellular structures. Microfilaments host cell structures does this bacterium normally hijack for movement.
Microfilaments- As they are made up of two entangled strands of the globular protein recognized as actin, microfilaments are also known as actin filaments. They are the tiniest filaments of a cytoskeleton and polymers of the protein actin. They are essential for muscle contraction, cell division, and cellular mobility.
Bacteria- Microorganisms that are unicellular, capable of autonomous reproduction, and generally free-living are known as bacteria. In nature, bacteria are found everywhere. The foundation of all life on earth, they are architecturally basic but functionally sophisticated creatures.
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Neurotransmitters are released from secretory vesicles in neurons by a process called ____________.
Neurotransmitters are released from secretory vesicles in neurons by a process called exocytosis.
A cell moves molecules out of the cell through exocytosis, a type of active transport and bulk transport. Exocytosis uses energy to move materials because it is an active transport process. All cells require exocytosis and its counterpart, endocytosis, because the majority of the chemicals that are necessary to them are big polar molecules that cannot passively pass through the hydrophobic region of the cell membrane.The proper operation of sophisticated neurological systems depends on neurotransmitters. More than 100 neurotransmitters have been found to be unique to humans, while the precise number is unknown.To learn more about exocytosis.
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help help help help help help
Answer:
Explanation: positive feedback response
HELPLLEOELWLELELEPLELELPELELELPPPP
that is correct, keep it up your doin well.
Fill in the Blank.
1.) Temperature and pressure both ___________ as you move toward the center of the Earth.
2.) When earthquakes occur they produce ____________ ______________.
3.) P waves can go through ______________ & _______________.
4.) S waves can only go through ______________.
5.) We study the ______________ & ______________ of seismic waves to determine what Earth’s layers are made of.
5.) Material that is less dense will _______________. Material that is denser will _____________.
6.) When radioactive elements decay they produce __________ that drives convection currents in the mantle. This radioactive decay happens in the _______________ ______________.
As we move towards the center of Earth, both the temperature and pressure increases progressively. The temperature and pressure at the center of the Earth are 5,200°C and 3.6 million (atm) respectively.
What is Earthquake?As we move to the inner core of Earth, the increase in temperature and pressure is observed. This is because the Earth's core is a sphere of molten nickel and iron.
Earthquake is a natural disaster. When earthquakes occur they produce sudden release of energy which causes the seismic waves that make the ground shake.
P-wave is a type of body wave that can go through both solid and liquid materials present in Earth's interior. S-wave is another type of body wave that can pass through only solids.
The study of speed and path of seismic waves determine what Earth's layers are made up of. In convection currents, material that is less dense will rise while material that is denser will sink deeper.
Mantle convection currents can be determined by the decay of radioactive elements. They emit energy in the form of ionizing radiations including alpha- particles. The radioactive decay happens in the mantle as well as in the rocks of Earth's crust.
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Triglycerides are a type of fat molecule found in your blood, created from storing excess food in long-term energy storage. Based on that knowledge, which macromolecule do you think it is most likely to be?
Based on that knowledge, lipid is the macromolecule i think it is most likely to be.
What is lipid ?Lipid has been as defined as an organic compound that is unable to dissolve in the water. The example of the lipid is oils, waxes, hormones, and fats. The main function of lipid has to maintain the structure or components of the cell membranes, the storage site of energy, and most important molecule of the cell signaling.
The main function of the protein has to the maintain the structure and function of the organs, and to repair muscle, and muscles. Diet contains the high protein which has recommended for the purpose of losing weight, reducing fat, or increasing fat.
Therefore, Based on that knowledge, lipid is the macromolecule i think it is most likely to be.
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How many atoms of carbon are there in each molecule of glucose, fructose, and galactose?
There are 6 atoms in every molecule of glucose, fructose, and galactose.
Each of these objects are examples of what? House, Desk, Pencil, Car
O wood
O metal
O plastic
O matter
________5. The chromatin is found in the nucleus.
P = prophase
I= interphase
A = anaphase
M = metaphase
T= telophase
Answer:
Mitosis PMAT
Explanation:
During prophase, the complex of DNA and proteins contained in the nucleus, known as chromatin, condenses. The chromatin coils and becomes increasingly compact, resulting in the formation of visible chromosomes.
Why is fat the preferred stored energy for cells
A gram of fat is oxidized to generate nearly twice as much energy as a gram of glycogen.
What is the purpose of glycogen?This kind of stored glucose, which is made up of many connected glucose molecules, is known as glycogen. When the body needs an immediate boost of energy or when it cannot get the glucose it needs from food, glucose is released from glycogen into the bloodstream and used as fuel for the cells.
Where are glycogen found?Small amounts of glycogen are also stored in your brain, but the majority of it is found in your liver and skeletal muscles (the muscles that are related to your bones and tendons).
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the hereditary units of a eukaryotic cell are organelles, and they are found in the nucleus organelles, and they are found in the cytoplasm genes, and they are found in the nucleus genes, and they are found in the cytoplasm
Genes, and they are found in the nucleus.
What is Genes?The term "gene" can refer to a variety of biological concepts. Mendelian genes are the fundamental building blocks of heredity, and molecular genes are DNA sequences that are translated to create functional RNA. Noncoding and protein-coding genes are the two different categories of molecular genes.
The DNA is initially transcribed into RNA when a gene is expressed. A protein that fulfills a function can be directly generated from the RNA or it can serve as the intermediary template. Phenotypic qualities are passed down through gene inheritance from an organism to its progeny. Numerous DNA sequences known as genotypes are composed of these genes. What the phenotypes will be depends on the genotypes as well as the environment and developmental variables.
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What is the
purpose of a conclusion? For biology
When a white powder is added to a glass of water, it dissolves. what will happen to the mixture when you let it settle?
1. the water in the glass becomes cloudy, and you can see two different parts.
2. the powder appears as one big solid substance and floats on top of the water.
3. the powder will form a thin layer at the bottom of the glass of water.
4. the powder will seem to disappear, and you can only see one part.
When a white powder is added in water ,the water will become cloudy and you can see that in two parts.
This white powder is made in what manner?Calcium breaks down into a white powder when burned with nitrogen, and when that powder dissolves in enough water, it turns into a gas (A) and an alkaline solution. After being exposed to air, the solution forms a thin, solid coating of (B) on the surface
Option 1 will be correct because when you add white powder the water will become cloudy and when you leave it for a time the powder will settle down the bottom.
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After cellular replication, a nucleolus failed to reform in the nucleus. What would be the most immediate implication of this failure?
If after cellular replication, a nucleolus failed to reform in the nucleus, the most immediate implication of this failure would be the inability to make ribosomes.
The nucleolus, which is the location of rRNA transcription and processing as well as ribosome assembly, is the most noticeable substructure within the nucleus. As was covered in the chapter before, cells need a lot of ribosomes to produce all the protein they need. Mammalian cells that are actively growing, for instance, need to produce between 5 million and 10 million ribosomes during every cell division. The nucleolus was created as a ribosome manufacturing facility to meet the demand for extensive rRNA production and ribosomal subunit assembly.
Inability to make ribosomes is the most immediate implication when a nucleolus is failed to reform in the nucleus.
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What explains a difference between prokaryotic and eukaryotic gene reguation
Answer:
Transcription is responsible for most gene regulation in prokaryotes but in eukaryoes gene regulation is more complicated and genes are regulated before and after transcription. And another difference is that eukaryotes don't express their genes all at once; they express one at a time. Prokaryotes do.
Explanation:
During static
electricity, what
positive particles
do electrons try
to find?
A. neutrons
B. other electrons
C. protons
neutrons
protons
←electrons
Answer:
c.protons
Explanation:
they are positively charged
Transmission of nerve impulses relies on the concentrations of ______ in the neuron.
Transmission of nerve impulses relies on the concentrations of sodium and potassium in the neuron.
Why is conduction at synapses one way?Conduction at synapses is always one way because, at each synapse, only one neuron has neurotransmitter (which is released into the synaptic cleft), while the other has the neurotransmitter receptors that open Na+ ion channels. Therefore, the transmission can never be in the opposite direction.
The sodium potassium pump maintains an electrical gradient across the plasma membrane of a neuron when it is not actively transmitting a nerve impulse.
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Hypertonicity causes cells to____?
Answer:
Hypertonicity causes cells to shrivel.
Explanation:
hope this helps
Answer:
Hypertonicity causes cells to transfer of fluid from inside the body cells into the fluid compartment surrounding the cells.
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What are the scientific goals for the Mars Science Laboratory? HELP PLEASE
A. correcting the packaging of the MSL mission components that has been the essential technology of all space missions
B. what kinds of technology to use for landing, what kind of instruments to use on the rover, how to power the rover and how to control the Mars Science Laboratory
C. to determine if Mars could have ever supported life, study the climate and geology, gain knowledge for future manned mission to Mars
D. completing the technology design process and constructing an MSL prototype that would successfully land on Mars
E. what kinds of technology to use for landing, what kind of instruments to use on the rover, how to power the rover and how to control the Mars Science Laboratory
The scientific goals for the Mars Science Laboratory is to C. to determine if Mars could have ever supported life, study the climate and geology, gain knowledge for future manned mission to Mars.
What was the experiment about?The carbon and water cycles on the planet throughout its history are being studied by the Mars Science Laboratory. In other words, it looks to find out how much and in what form carbon and water are stored on the planet or in its atmosphere, as well as whether those quantities have changed through time.
The goal of NASA's scientific research on Mars is to "seek indications of life." Life as we know it would not have been possible without water, either in the present or in the past. On Earth, water is essential for life.
Therefore, the scientific goals for the Mars Science Laboratory is to l to determine if Mars could have ever supported life, study the climate and geology, gain knowledge for future manned mission to Mars.
In conclusion, the correct option is C.
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Answer:
to determine if Mars could have ever supported life, study the climate and geology, gain knowledge for future manned mission to Mars
Explanation: