what system is composed of the brain, spinal cord, and nerves
Answers
Answer:
Nervous System
Explanation:
The nervous system contains all the important organs of the body, and it helps us to live
Related Questions
What is a nebula? A. The core of a massive star B. A cloud of gas and dust in space C. A swirling disk with a lot of gravity D. The debris remaining after a supernova
Answers
Answer:
its B. a cloud of gas and dust in space
Nebula is a cloud of gas and dust in space. The correct option is B.
What is special regarding nebula?A nebula is a distinct luminescent component of the interstellar medium that can be composed of ionized, neutral, or molecular hydrogen, as well as cosmic dust.
When stars form within a nebula, they emit a stream of charged particles known as stellar wind.
Massive stars and young stars have stellar winds that are much stronger than the Sun's.
When the wind collides with the gas in the nebula, it creates shock waves or hydrodynamic instabilities, which shape the gas clouds.
Nebulae are frequently star-forming regions, as seen in the Eagle Nebula's "Pillars of Creation."
Thus, the correct option is B.
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1. all living things are composed of one or more cells. adult humans are composed of trillions of cells that have a stunning array of forms and functions. how many different types of cells are there in the human body?
Answers
The fundamental units of all living things are cells. There are many billions of cells in a human body.
What is Cell?They give the body structure, absorb nutrients from meals, turn those nutrients into energy, and perform certain tasks. Moreover, cells have the ability to replicate themselves and contain the body's genetic material.
Each component of a cell has a different purpose. These components include organelles, which are specialized structures that carry out specific functions for the cell.
The framework of the cell is made up of a network of lengthy fibers known as the cytoskeleton. The cytoskeleton performs a number of vital tasks, including regulating cell shape, taking part in cell division, and enabling cell movement.
Therefore, The fundamental units of all living things are cells. There are many billions of cells in a human body.
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agarose gels can be used to study what size of dna fragments?
Answers
Agarose gels can be used to study the size of DNA fragments ranging from 100 base pairs to 25,000 base pairs.
This technique is called gel electrophoresis and it works by applying an electrical current to the gel, causing the negatively charged DNA fragments to move through the gel towards the positively charged end. The smaller fragments will move faster through the gel, while the larger fragments will move slower. This creates a pattern of DNA bands on the gel, which can be visualized using a staining technique. By comparing the DNA bands to a known size marker, the size of the DNA fragments can be determined.
In summary, agarose gels are used to study the size of DNA fragments by separating the fragments based on their size and visualizing them using a staining technique. This allows researchers to determine the size of the DNA fragments and analyze their genetic information.
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LOOK AT PIC!!!!!!!!!!!!!
Answers
Answer: black
Explanation:
Yes
Answer:
wow it is blank
Explanation:
For each of the following, 1. identify whether is is nonexcludable, nonrival, neither, or both and briefly explain your answer. and 2. determine which one or more of the following (a, b, c, d) would suffer from the free rider problem. Make sure to fully explain your answers:
a. The Great Smoky Mountains National Park (covers over 800 square miles, has dozens of access points for hiking trails located along public roads and highways).
b. a playground at a local park, such as Luetta Moore Park in Statesboro, GA (if you aren't familiar with Statesboro - it's an open playground in a residential area, there's a fence around part of it, but there's no gate/fence doesn't close)
c. National defense
d. A subway train
Answers
a. The Great Smoky Mountains National Park: Nonexcludable and rivalrous. Free rider problem likely.
b. Luetta Moore Park playground: Nonexcludable. No free rider problem.
c. National defense: Nonexcludable and nonrivalrous. Free rider problem exists.
d. Subway train: Nonexcludable. Free rider problem possible during peak hours.
a. The Great Smoky Mountains National Park: It is nonexcludable because it is difficult to prevent individuals from accessing the park. However, it is rivalrous as the park's resources, such as campsites or parking spaces, can be depleted. Both nonexcludability and rivalry suggest that the park is both nonexcludable and rivalrous. The free rider problem may occur since people can enjoy the benefits of the park without paying for its maintenance or preservation.
b. Playground at Luetta Moore Park: The playground is nonexcludable since it is difficult to prevent people from using it. However, it is nonrival as one person's use does not diminish the usability of the playground for others. Therefore, it is only nonexcludable. The free rider problem may not apply here since the use of the playground does not impose costs on others.
c. National defense: National defense is both nonexcludable and nonrival. It is nonexcludable because it is challenging to exclude individuals from benefiting from defense. It is nonrival because the defense provided to one person does not diminish the defense available to others. Both characteristics make national defense both nonexcludable and nonrival. The free rider problem is prevalent in national defense since individuals can benefit from defense without incurring the costs associated with it.
d. Subway train: A subway train is nonexcludable since it is difficult to prevent individuals from using it. However, it can be rivalrous during peak hours when overcrowding may limit the available space. Therefore, a subway train is only nonexcludable. The free rider problem may not be significant here as long as there are no capacity constraints or overcrowding issues.
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which of the below is true about cellular respiration? group of answer choices it oxidizes carbon compounds and reduces oxygen it is an anabolic process it is endergonic it includes the calvin cycle and glycolysis all of these
Answers
Statement which is true about cellular respiration is option A: it oxidizes carbon compounds and reduces oxygen.
Glucose is converted to ATP through a metabolic process termed cellular respiration. Glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation are the various phases of cellular respiration. Cellular respiration does not include the Calvin cycle. The initial stage of all forms of cellular respiration is glycolysis.
During the process, glucose is broken down into carbon dioxide and water. It lowers oxygen while oxidizing carbon-based molecules. It is a catabolic process that releases energy by breaking down complex molecules into simpler ones. It releases energy because it is exergonic.
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Complete question is:
Which of the below is true about cellular respiration? group of answer choices
it oxidizes carbon compounds and reduces oxygen
it is an anabolic process
it is endergonic
it includes the calvin cycle and glycolysis
all of these
3 examples of abiotic factors
Answers
Answer:
rock
water
soil
Explanation:
these items have never lived and relate to an environement :)
Explain how weathering is occurring in A, B, and C.
Temperature -3° C
Ice
Answers
This is the process in which rocks are broken down into smaller
fragments to form soil. In weathering caused by wind, the rocks
are blown away to other parts which causes them to break.
In weathering caused by water and ice, the water seep into
rock particles and causes them to expand and contract as a
result of changing temperatures thereby resulting in the
breakdown of rock particles.
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Tor F: During diffusion, molecules move from low to
high concentration.
Answers
Answer:
False
Explanation:
During diffusion molecules move according to the concentration gradient from high to low concentration
Answer:
during diffusion, molecules move from a region high concentratiom to a region of low concentration until equilibrium is reached.
Can you guys please help me I will mark you brainelest if you get 2-5 answers right
2. What is a convergent boundary? Name one example of a convergent boundary.
3. What is a transform boundary? Name one example of a transform boundary.
4. Using the map provided, where are convergent boundaries typically found on the earth (middle of oceans or near edges of continents)?
5. Using the map provided, where are divergent boundaries typically found on the earth (middle oceans or near edges of continents)?
Answers
Explanation:
2. A convergent boundary is an area on earth where two or more lithospheric plates collide. The Oregon-Washington coastline is an example of this boundary.
3. A transform boundary is a fault along the plate boundary where the motion is predominately horizontal. An example of this is the Alpine Fault in New Zealand.
Identify the organelles labeled on the cell to the right.
A
nucleus
B
C
D
E
F
The organelles in a cell are labeled. Part A is a large round structure at the center of the cell. Part B is a small round structure floating in the cell. Part C is a cylindrical structure made up of small sticks. Part D is the area inside of the cell. Part E is the outside of the cell. Part F is a bean-shaped structure with folding inside.
Answers
Answer:
A: Nucleus
B: Lysosome
C: Centrioles
D: Cytoplasm
E: Cell Membranes
F: Mitochondria
Explanation:
Edge :)
Cell organelles are the subparts in a cell. Organelles are the microscopic structures.
Organelles in the cells are ultra-structures that can be visualized with the help of specialized microscopes.
Cell organelles help in performing various functions in the cell thus exhibiting division of labour.
Some of these organelles and their functions are as follows:
Nucleus – It regulates all the cellular activities. It is the control centre of a cell.Lysosomes – Lysosomes contain many digestive enzymes. It function is to degrade dead or worn out cell.Centrioles – Centrioles are present only in animal cells. It frames the cell’s skeleton and helps in cell division.Cytoplasm – It is fluid in nature and forms the matrix. It acts as a medium for many cellular reactions.Cell membrane – It is made up of proteins and lipids. It controls the movement of molecules in and out of the cell.Mitochondria – It helps in the production of energy in the form of ATP moleculesTherefore, cell organelles are important for maintaining cell structure and function.
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What is an allele that can have a harmful effect?
1 Deleterious allele
2 Dominant allele
3 Recessive trait
4 Recessive allele
Answers
Answer:
option A is correct i hope you like it
in mice, black fur (b) is dominant to white (b). at a different locus, a dominant allele (a) produces a band of yellow just below the tip of each hair in mice with black fur. this gives a frosted appearance known as agouti. expression of the recessive allele (a) results in a solid coat color. if mice that are heterozygous at both loci are crossed, what is the expected phenotypic ratio of their offspring?
Answers
In mice bearing black fur, a dominant nucleotide (A) causes a ribbon of yellow to appear immediately below the tip within each hair at a separate locus. Agouti, a kind of frosted appearance, results from this.
What do hairs do?The spindle and thus the hair shaft are two separate components of hair, a descendant of the epidermis. The ovary is the fundamental building block for the production of hair.
What do hair and hair mean?Although it has a simple structure, hair is quite important in social contact. Hair is made of the strong protein keratin. A hair follicle serves as the anchor for each hair on the skin. The hair bulb constitutes the base of the epidermis. The hair shaft is made in the strands bulb by the differentiation and expansion of living cells.
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7. What are some problems / diseases associated with hypertension?¶
Answers
Answerrrr- Heart disease, heart attack, strokes and i'm pretty sure kidney disease as well
please help , give me a good paragraph & ill give you extra points
Answers
Answer:
kinetic potential energy is turned into speed as it slides down the hill
the more kinetic energy the ball had the further it moved the cup
Explanation:
What are the two types of crust in the lithosphere?
Answers
Answer:
Oceanic crust and continental crust
Imagine that you fill a shallow tray with water and place a drop of red ink in one end of the tray and a drop of green ink in the other end. Which of the following is TRUE at equilibrium?
(A) The red ink is uniformly distributed in one half of the tray, and the green ink is uniformly distributed in the other half of the tray.
(B) The red and green inks are both uniformly distributed throughout the tray.
(C) Each ink is moving down its concentration gradient.
(D) The concentration of each ink is higher at one end of the tray than at the other end.
(E) No predictions can be made without knowing the size of the ink molecules.
Answers
When you fill a shallow tray with water and place a drop of red ink in one end of the tray and a drop of green ink in the other end. The following is true at equilibrium is B. The red and green inks are both uniformly distributed throughout the tray.
At equilibrium, the ink molecules will move from the region of higher concentration to the region of lower concentration until the concentration of both the red and green ink is uniform throughout the tray. Therefore, the correct option is (B).Option (A) is incorrect because it predicts that the red ink will be uniformly distributed in one half of the tray, and the green ink will be uniformly distributed in the other half of the tray.
However, at equilibrium, the ink molecules will move towards the region of lower concentration until both the red and green ink are uniformly distributed throughout the tray. Option (C) is incorrect because it suggests that each ink is moving down its concentration gradient. However, both inks are moving down their respective concentration gradients, from regions of higher concentration to regions of lower concentration, until both are evenly distributed throughout the tray.
Option (D) is incorrect because it states that the concentration of each ink is higher at one end of the tray than at the other end. However, both inks will spread out until their concentration is the same throughout the tray. Option (E) is incorrect because the size of the ink molecules is not a relevant factor in this scenario as it does not influence the behavior of ink molecules during diffusion. Therefore, the correct answer is (B) The red and green inks are both uniformly distributed throughout the tray.
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Which strategy best describes a way to address polluted air? Select three options.
Answers
Answer:
replace the type of chemicals used in industrial processes
minimize the burning of fossil fuels used at industrial plants
study the effects of mold exposure on people who suffer from asthma
Explanation:
PLEASE HELP ASAP
We usually only hear about major oil spills. But smaller oil releases occur regularly in United States waters. (LOOK AT PICTURE FOR THE KEY THINGY) They can cause damage to water organisms.
Which of the following statements best summarizes the information provided by the graph?
A. All of these releases happen in the ocean, not in fresh water.
B About two-thirds of the oil released comes from natural sources.
C: The largest amount of human-caused oil release comes from shipping
D. Only 2% of oil release is from ocean drilling and does not damage organisms.
Answers
Answer:
C
Explanation:
it is true in this case, that it is C "the largest amount of human-caused oil release comes from shipping" (hope this helps have a good day/night!)
Which step of the procedure corresponds to the release of DNA-coupled conjugates? A. B. B. C. C. E. D. D. D is correct.
Answers
Step D of the procedure corresponds to the release of DNA-coupled conjugates.
Option D is correct.
We are looking for the step in which the DNA-coupled antibodies are released. Paragraph 2 outlines each step of the procedure shown in Figure 1. Beginning with step A, DNA oligonucleotides are hybridized to the oligonucleotides in the mixture.
In step B, agarose beads are used to capture the biotinylated capture oligonucleotides, both in the form of conjugates and free oligonucleotides.
In step C, the unconjugated antibodies are removed by washes.
In step D, the MlyI enzyme is used to cleave the captured oligonucleotide hybrids, allowing both conjugates and oligonucleotides to be eluted from the solid support. Thus, step D is our answer.
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Question 45 (1 point)
(DOK 2) The role of the pancreas in the human body is to make insulin to prevent
individuals from developing diabetes. Sue goes to visit the doctor and the doctor
reports that her pancreas is indeed producing proteins necessary to create insulin
but the proteins are not being delivered to the correct location in the cell, to trigger
the release of the insulin. Which organelle is responsible{for this lack of homeostasis?
vacuole
golgi bodies
nucleus
Endoplasmic reticulum
Answers
The organelle here that is responsible for delivering the protein to correct location is Golgi bodies. The correct option is B.
What are Golgi bodies?The Golgi apparatus is an organelle located in almost all eukaryotic cells. It is also referred to as the Golgi complex, Golgi body, or the Golgi.
It is a mandatory part of the cytoplasmic endomembrane system which aids in packaging of proteins into membrane-bound vesicles as they are transported to their destination.
The packaging and transportation of materials would cease if the Golgi apparatus was not present.
Various substances, such as sugar monomers, would be unable to be converted into usable forms. The cell's secretory activities would also cease to exist.
In the given scenario, as Sue's pancreas is indeed producing proteins necessary to create insulin but the proteins are not being delivered to the correct location in the cell, to trigger the release of the insulin.
This shows that she is not able to transport the insulin due to some problems with the Golgi apparatus.
Thus, the correct option is B.
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which greenhouse gas is created by humans exclusively?
Answers
Answer:
carbon dioxide is a greenhouse gas created by humans
Explanation:
due to the burning of fossil fuels
"If a scientist isolates genes for Hepatitus B antigens from a Hepatitus virus, then inserts them into a bacterial plasmid and replicates the bacteria in a fermenter, what product will be collected?"A. Transgenic bacterial plasmidsB. Hepatitus B frusesC. Hepatitus B vaccineD. Hepatitus resistant bacteria
Answers
If a scientist isolates genes for Hepatitus B antigens from a Hepatitus virus, then inserts them into a bacterial plasmid and replicates the bacteria in a fermenter, the product collected will be transgenic bacterial plasmids, inside the bacteria, in order to proove if the transgenic plasmid actually gives the bacteria resistance to the virus, it has to be grown in an infected medium.
The correct answer is option A.
The point at which the nerves from the left side of the body cross over into the right side of the brain, and vice versa, is the __________. Group of answer choices
Answers
The point where the nerve passes from the left side of the body to the right side of the brain and vice versa is the medulla oblongata.
The medulla oblongata, also called the medulla oblongata, the lowest part of the brain, the lowest part of the brainstem. The medulla oblongata is connected to the midbrain via the pons, enters posteriorly into the spinal cord, and joins at an opening in the base of the skull (foramen magnum).
The left hemisphere controls the right half of the body, and vice versa because of a crossing of the nerve fibres in the medulla or, less commonly, in the spinal cord. Although the right and left hemispheres are mirror images of each other in many ways, there are important functional differences.
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what's a Gologi apparatus
Answers
Answer:
a complex of vesicles and folded membranes within the cytoplasm of most eukaryotic cells, involved in secretion and intracellular transport.
What is the smallest lava fragments produced by an explosive eruption called?
Answers
Explanation:
rock fragments between 2 and 64 mm in diameter they were ejected from a volcano during explosive eruption
and that is called LAPILLI
A pyroclastic grain, lapilli is the smallest lava fragment produced by an explosive eruption.
What is a pyroclastic grain?Any volcanic piece that was propelled through the air by volcanic activity is known as a pyroclastic. A pyroclastic eruption is one in which fountains or explosions make up the vast majority of the activity. Lapilli, lava bombs, and lava blocks are some pyroclastic grains.
Pyroclasts include volcanic bombs, cinders, and ash. Pyroclasts are created either directly from the magma or by removing solid fragments from the conduit's walls, which are typically found close to the surface. Most parks with volcanoes or volcanic rocks have pyroclastic rocks that can be seen.
Lapilli is the smallest lava fragment produced by an explosive eruption, and it is a pyroclastic grain.
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If you observe a Full Moon on Jan 12th, on what date would you observe the next New Moon? What date
Answers
Answer:
14.765 days
Explanation:
The Moon has 8 different phases that create an entire Cycle starting with a New Moon. The phases of this cycle are the following...
New Moon
Waxing Crescent
First Quarter
Waxing Gibbous
Full Moon
Waning Gibbous
Last Quarter
Waning Crescent
This entire cycle takes 29.531 days to complete the entire cycle and start with the New Moon phase again. Therefore since the Full Moon phase is halfway through the cycle we can divide the total time it takes for the cycle to complete by 2 to calculate the time between a New Moon and a Full Moon.
29.531 / 2 = 14.765 days
Help please due in 5 mins will give brainliest if you explain right.
Answers
Answer:
its snowing so the colour of their fur changes during winter
Explanation:
In this activity you will select one of the species below to model. You will write each function for your chosen species in chart in number 2. Then you will decide what matching characteristic (form) this species would need to carry out that function. plus you can just downloads the doc so you can see it better
1. Read through each of the species descriptions below, and highlight the species that you would like to model.
Species A can … Species B can … Species C can … Species D can …
Fly
See far into the distance
Hide easily in a tree
Collect multiple small berries and nuts in its body
Alert others of danger by releasing gas Jump from uneven surfaces
Walk on the ground and on the side of a mountain
Blend in with the surroundings of a mountain
Look up and down without moving its head
Sift through small rocks to find food Swim
Dive from high elevations
Catch small fish with its limbs
Gulp fish whole or tear into it with its mouth
Double in size when scared Hop but cannot jump
Move very close to the ground
Burrow into the ground
Hear many sounds and smell many scents
Eat plant matter that has fallen onto the ground
Answers
The specie that I would like to model would be a housefly.
The classification of a housefly are:
Kingdom: Animalia Phylum: Arthropoda Class: Insecta Order: Diptera Family: Muscidae Genus: Musca Scientific Name: Musca domestica.What is a Specie Classification?This refers to the binomial nomenclature that is used to classify living organisms and show their relationship with others.
Hence, we can see that the name of the person that invented this system is known as Carl Linnaeus who developed the system in the 18th Century.
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a researcher may use a blanket authorization for all research purposes?
Answers
An IRB has authorized a waiver of authorization for hiring. It is not acceptable to obtain a general research authorization for recruiting purposes.
A patient cannot be asked to sign a form authorizing a researcher (or anybody else) to contact them about undetermined future studies, as a result. An authorization is a comprehensive document that grants covered entities permission to use protected health information for specific purposes that are typically not related to treatment, payment, or health care operations or to disclose protected health information to a third party that the individual specifies.
With the exception of disclosures connected to the TPO (Treatment, Payment, Operations) of the entity in charge of the PHI or under certain circumstances, PHI disclosures under HIPAA require a special permission.
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