The following is TRUE about theories and laws are-
D. A theory can never become law.
All scientific hypotheses are supported by data, are testable, and—most importantly—can be used to forecast the future. Accordingly, ideas never become laws, regardless of how much evidence there is to support them. In actuality, the end purpose of science is the formulation of theories. Any (expressed) law is a theory even though it can contain some truth that can only be derived from facts or another theory.
A theory is something we can only (temporarily) believe in since we are unable to prove it. A law cannot be a fact since it usually has an undefined, universal scope, and we can only collect a limited number of observations, some of which may be nothing more than dreams.
Therefore, I would say that any scientific law is a theory, a conviction, or a hypothesis, and we should anticipate that it will be challenged, improved, or supported by... another (simpler or more compelling) idea.
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To sterilize the nutrient broth and nutrient agar, the tubes and bottles are __________.
The tubes and bottles are autoclaved in order to sterilize the nutrient broth and nutrient agar.
What do you mean by sterilize?To rid (something or someone) of all live microbes in order to make it sterile (as by the use of steam or dry heat) Use an autoclave to sterilize surgical instruments. to surgically sterilize cats and dogs in order to remove their reproductive ability.
How do we sterilize?Combining heat, chemicals, irradiation, high pressure, and filtration can result in sterilization. Examples include the use of steam under pressure, dry heat, UV radiation, gas vapor sterilant, chlorine dioxide gas, etc.
What makes sterilization important?To stop the spread of diseases linked to the usage of an object, sterilization eliminates all bacteria on its surface or in its fluid.
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If a case of anorexia nervosa has neared a medical crisis, the first step in treatment is to?
If a case of anorexia nervosa has neared a medical crisis, the first step in treatment is to restore adequate body weight.
Anorexia nervosa is an eating disorder in which a person has a fear of being overweight and thus avoids eating as much as possible. He is very concerned about his body shape and weight. He tries unhealthy routines to acquire a perfect body shape or indulges in unhealthy practices like vomiting after eating.
Anorexia nervosa can be diagnosed by oneself. Various symptoms associated with anorexia nervosa include fatigue, underweight, insomnia, abnormal blood count, excessive hair fall, etc. It can take over your life if not treated in time. Treatment may help you develop a better sense of your personality and can return to your normal diet to keep you healthy.
Younger people are more at risk. they become self-obsessed with their thin body shape and avoid treatment. This could be quite life-threatening. It can even affect your health and cause many problems like kidney disorders, heart disorders, low bone density, muscle loss, etc.
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How do the upper layers receive nourishment if epithelial tissues are not vascular?
The avascularity of epithelial tissues is almost complete. For example, no blood arteries may get through the basement membrane to enter the tissue, therefore nutrients must be absorbed or diffused from the surface or underlying tissues.
What is Epithelial tissue ?The epithelium is a type of body tissue that covers all of the internal and exterior body surfaces, lines hollow organs and body cavities, and makes up the majority of glandular tissue.
Epithelial tissue has three main purposes: acting as a barrier of protection, secreting chemicals, and absorbing substances. The primary function of particular tissues varies depending on the location and cell type. Goblet cells and stratified epithelium commonly form protective barriers.Simple squamous, simple cuboidal, simple columnar, and simple pseudostratified are the four main classes of simple epithelium.Learn more about Epithelial tissue here:
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How does the structure of the plasma membrane depend on the amphiphilic (means both hydrophobic and hydrophilic) nature of phospholipids?
The amphiphilic molecules arrange themselves into a bilayer, with their hydrophilic phosphate-containing heads facing the water on each side of the membrane and their hydrophobic tails directed towards the center, avoiding water.
A phospholipid is a lipid composed of two fatty acid tails, glycerol and a phosphate-linked head group. Biological membranes typically have two phospholipid layers with their tails pointing inward, a configuration known as a phospholipid bilayer.
The primary material of the plasma membrane is composed of phospholipids arranged in a bilayer. They are amphipathic, which means they have both hydrophobic and hydrophilic regions, making them ideal for this role.
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Thin-walled vessels that connect the smallest arterioles to the smallest venules are?
Capillaries
Thin-walled vessels that connect the smallest arterioles to the smallest venules are capillaries.
Nutrients and waste products are exchanged between the blood and body tissues through the tiny, thin-walled capillaries that connect the arterioles and venules.What are capillaries?These little blood vessels have thin walls. Oxygen and nutrients from the blood can enter organs and tissues through the walls. The capillaries also eliminate waste from your tissues. In capillaries, carbon dioxide and waste are exchanged for oxygen and nutrients.Where do capillaries reside within the body?Continuous capillaries are the smallest blood veins in your circulatory system.They link your arteries and veins. Additionally, they support the endocrine system, brain, kidneys, lungs, small intestines, and kidneys.To learn more about capillaries visit:
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The recessive alleles do not contribute to the red coloration of the seed casing. True or false
The statement "the recessive alleles do not contribute to the red coloration of the seed casing" is definitely true.
What are Recessive alleles?Recessive alleles may be defined as a type of alternate form of a gene that must be homozygous when inherited in order to be expressed in the phenotype.
In a more simple sense, a recessive allele may be characterized as a type of allele that when present on its own will not affect the individual.
The red coloration of the seed casing is determined by the effect of dominant alleles while the green coloration of the seed casing is influenced by the effect of recessive alleles.
Therefore, the statement "the recessive alleles do not contribute to the red coloration of the seed casing" is definitely true.
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The cells in the nervous system that handle information processing are called? specialty cells. blood cells. synapses. neurons.
Option D: The cells in the nervous system that handle information processing are called neurons.
Nerve cells, often called neurons, are the building blocks of the nervous system. They interact with the information and transfer this information along various distances through electrical impulses. The nervous system is generally made up of two types of cells: nerve cells and glial cells. Glial cells are the supporting system of neurons. The nervous system is broadly divided into two categories:
The central nervous system (CNS) contains the brain and spinal cord
The peripheral nervous system (PNS) contains neurons and their parts such as sensory neurons and motor neurons.
Analysis of the information brought in by sensory neurons is done in CNS while PNS works as transportation for these signals from one neuron to another. Motor neurons carry the signals out of the CNS after analysis.
Information processing in the nervous system is handled by neurons or their parts like interneurons that connect one neuron to another in the CNS. These signals are then transferred by motor neurons to respond to stimuli.
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What are the limitations of classical conditioning in addressing the cognitive processes of humans?
Humans' thoughts, perceptions, and expectations impact the success of associating. Humans take into account the predictability of an event as well.
What is cognitive process?Thanks to a series of chemical and electrical impulses that occur in your brain during cognitive processes, you may understand your surroundings and learn new things. Numerous messages are produced by chemical discharges from neurons, which other neurons in the area then convert into conscious and unconscious thoughts. A few examples of cognition are procedural knowledge, emotional responses, and the conscious interpretation of your five senses. Complex mental processes including memory, learning, language use, problem-solving, decision-making, reasoning, and intelligence are also considered to be parts of cognition.Learn more about the cognitive process with the help of the given link:
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Assume that you have a eukaryotic cell with three chromosomes within it. how many 5' ends would there be?
The number of 5' ends would be Gap 1:6, Gap 2:12.
The carbon atoms in the sugar ring are numbered from 1' to 5', and the "5 prime end" of a nucleic acid strand has a free hydroxyl (or phosphate) on a 5' carbon and the "3 prime ends" has a free hydroxyl (or phosphate) on a 3' carbon. For a single-stranded (ss) DNA strand or an RNA strand, that is an easy enough task.
The pairing of the 5' end of one strand with the 3' end of the other strand in double-stranded (ds) DNA is not immediately apparent, however (it is "antiparallel"; ). If one strand is the sense strand of a gene. In that situation, the direction is determined by the sense strand's orientation.
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Transport proteins (transporters) require energy expenditure for each molecule of substrate transported. the reason for this energy requirement is?
Transport proteins (transporters) require energy expenditure for each molecule of substrate transported. the reason for this energy requirement is option(a) i.e, the solute must be transported against a concentration gradient.
Transport proteins are integral transmembrane proteins, which means they span the membrane across which they transport things and remain there permanently. Through enhanced diffusion or active transport, the proteins may aid the movement of molecules. Transport proteins that participate in assisted diffusion include channel proteins, gated channel proteins, and carrier proteins.
Transport proteins enable everything from nerve impulses to cellular metabolism by transferring molecules across membranes. For instance, the sodium-potassium gradient that causes our nerves to fire would not exist without transport proteins.
The cell membrane contains transport proteins that enable the selective transit of particular molecules from the surrounding environment. Each transport protein recognizes a particular molecule only (indicated by matching colors).
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The complete question is:
Transport proteins (transporters) require energy expenditure for each molecule of substrate transported. The reason for this energy requirement is __________.
A) the solute must be transported against a concentration gradient
B) the solute must be forced through the hydrophobic membrane
C) the conformational shape of the solute must be changed during transport
D) the solute must be chemically altered
Which types of drugs taken by a pregnant patient are more likely to have effects on a fetus? a.protein-bound drugs b.ionized drugs c.drugs that are highly polar d.lipid-soluble drugs
(D) Drugs that are lipid-soluble cross the placenta more easily. Highly polar, ionised, or protein-bound medications have a hard time crossing the placenta.
Why are drugs lipid soluble?Lipid-soluble medicines diffuse more quickly because the cell membrane is lipoid. Larger molecules typically take longer to cross membranes than smaller ones. The majority of pharmaceuticals are weak organic acids or bases that exist in aquatic environments as both ionised and unionised forms.
The gut wall and liver substantially process the more lipophilic medications (first-pass metabolism). The variability of this first-pass clearance can lead to 20-fold variations in the plasma drug concentrations of patients who received the same dose. Additionally, it makes patients with hepatic disease, particularly cirrhosis, more susceptible to pharmacological interactions with substances that change the hepatic drug metabolism, such as cimetidine.
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Blo 182 in assignments the artificial selection of which organisms was useful for darwin to come up the term natural selection?
When Darwin returned to England aboard the HMS Beagle after his voyage to the Galapagos Islands, he used artificial selection to help gather data to justify his theory of evolution. After studying the finches on the islands, Darwin moved to raising birds, notably pigeons, back home to test his theories.
What, according to Darwin, is artificial selection?Artificial selection is the discovery of desirable qualities in plants and animals by humans, as well as the procedures taken to improve and maintain such traits in future generations.
They may adjust an organism's properties by choosing which creatures were permitted to reproduce. . Darwin referred to this form of alteration in organisms as artificial selection.
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Each peroid of the periodic table begins on the left with a:
very active metal
metalloid
rare-earth metal
Answer:
Rare Earth medals
Explanation:
The rna responsible for bringing the amino acids to the ribosomes for protein synthesis is ___.
The RNA responsible for bringing the amino acids to the ribosomes for protein synthesis is tRNA.
In the field of science, Ribonucleic acid (RNA) can be described as a nucleic acid molecule that is single-stranded. RNA plays important functions such as helping is coding and decoding of the genome.
During the process of transcription, mRNA is formed from the DNA. These mRNA is referred to as transcripts that have a coding sequence for the formation of proteins. The mRNA carries a sequence for proteins in the form of codons. These codons have complementary amino acids which are brought to the ribosomes by the tRNA.
In the ribosomes, where the formation of protein has to occur, it is the transfer RNA (tRNA) that brings the amino acids to the ribosomes for protein synthesis.
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Function of the kreb's cycle is to? a. remove hydrogen ions and transfer them to coenzymes b. transfer a hydrogen to an acetyl group c. degrade glucose d. produce carbon dioxid
Function of the Krebs cycle is to (a) remove hydrogen ions and transfer them to coenzymes.
Krebs cycle is also called the Citric acid cycle or the TCA cycle. It occurs in the matrix of the mitochondria. It is an important cycle of the aerobic respiration that functions to provide energy to the cells. The energy released is in the form of NADH, FADH₂ and GTP.
Coenzymes are the organic molecules that aid in the catalysis process to the enzymes. They bind to the active site of the enzymes. These are not proteinaceous in structure. The examples of coenzymes are NAD, NADP and FAD.
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Can you tell three lines about the following words
1- Nutritionist
2- Psychologist
3- Osteologist
4- Geneticist
Nutritionists typically work with individuals or populations to teach them more about general nutrition, food and health.
Can you tell three lines about the following words
1- Nutritionist:
The Nutritionist is a person who advises other people on the matter of food and nutrition and also the impacts on the life of the peoples. Some people specialize in particular subjects like sports, food, public health and animal and in many others subjects.
2- Psychologist:
A psychologist is a person who practices the psychology and other mental healths which relates with the emotional behaviour of the patient. Their work usually includes the experiments, interpretation and many other things.
3- Osteologist:
Osteologist is a person which study about the bones. The osteologist is the sub discipline of anatomy, anthropology, and paleontology. It is that study in which the student learns about the deep study in bones.
4- Geneticist:
The Geneticist is that kind of study in which the student learns about the genetics, heredity, the science of genes and variation of organism. A geneticist can be employed as a scientist or a lecturer.
So we can conclude that: Nutritionists typically work with individuals or populations to teach them more about general nutrition, food and health.
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What is an important regulation process that connects various parts of a system?
Answer:
An important regulation process that connects various parts of a system is feedback.
Explanation:
A reaction inside a biological system—a molecule, tissue, species, or population—that affects the behavior or performance of that system is known as feedback. It essentially involves the regulation of a metabolic pathway by the activity's byproducts.
Both positive and negative feedback is possible. Negative feedback is indeed a component of any feedback mechanism that keeps things in balance. Positive feedback in biology occurs far less frequently. Whenever a change in variable results in a reaction that undoes the original change, this is known as negative feedback. A reaction is generated by a change in a factor when there is positive feedback. For instance, a warm-blooded species like a whale keeps a greater body heat to improve the internal equilibrium and while a cold-blooded animal such as fish retains a lower temperature of the body in accordance with the surrounding environment.
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The p in ph stand for the german word potenz, witch means "power" or "potential." the h represnts hygrogen ions. how are these related to the definition of ph
Answer:
The answer is following:
Explanation:
The definition of pH is "power of hydrogen ions," as stated above.
An indicator of a solution's acidity is its hydrogen ion percentage. A much more acidic solution is indicated by a greater concentration.
The pH equation is
pH = -log(H+)
In this way, pH serves as a measurement for hydrogen ions.
The hydrogen ion potential increases with increasing pH negativity. Hydrogen is the meaning of the H in pH. However, there is significant disagreement regarding what the p stands for. According to the Carlsberg Foundation, pH stands for "power of hydrogen." The French argue that it is their term for power, puissance, while German scientists assert that it refers for Potenz, which also means power. According to ancient Romans, the word is pondus hydrogen (Latin for "amount of hydrogen"). The British would say that the possible hydrogen is the only complexity involved.
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In contrast to the sympathetic nervous system, the parasympathetic nervous system:_____.
In contrast to the sympathetic nervous system, the parasympathetic nervous system controls the functions when an individual is at rest.
Sympathetic nervous system controls the body's fight or fright response. This means it is functional when the body undergoes some stress, danger or excitement. The hormones associated with it are epinephrine and nor-epinephrine.
Parasympathetic nervous system controls all the activities that relax the body. These functions include digestion, breathing, lacrimation, etc. The chemical released during this response is acetylcholine. Acetylcholine can bind to two types of receptors: nicotinic receptors and muscarinic cholinergic receptors.
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Which type of stroke correlates with the clinical manifestations of a severe headache?
Hemorrhagic stroke is a type of stroke correlates with the clinical manifestations of a severe headache.
Hemorrhagic stroke- The term "hemorrhage" also refers to bleeding, which is the loss of blood. Internal bleeding is when it occurs within the body, while external bleeding is when it happens outside the body.
Severe headache- The agony of a migraine headache is frequently characterized as throbbing and hammering. They typically occur one to four times each month and can last anywhere from four hours to three days. Along with the discomfort, individuals also have additional symptoms including sensitivity to light, sound, or scents; nausea or vomiting; appetite loss; and an upset stomach or pain in the abdomen.
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Plant cells, unlike animal cells, are characterized by the presence of a ______. select all that apply.
Plant cells, unlike animal cells, are characterized by the presence of a cell wall.
Cell walls are a protective layer that is rigid and only partially permeable on some types of cells. This outer layer is located near the cell membrane in the majority of plant cells as well as those of fungi, bacteria, algae, and some archaea (plasma membrane).
Animal cells, however, do not have a cell wall. The cell wall of a cell performs a number of essential functions, including support, construction, and defence.
Depending on the organism, the cell wall's makeup varies. The vast majority of a plant's cell wall is made up of sturdy cellulose fibres. Cellulose, a substance used in the production of paper, is found in large quantities in both wood and cotton fibre. The walls of bacterial cells are composed of a polymer of sugar and amino acids called peptididoglycan.
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On a blood smear slide prepared using wright's stain, you observe a large cell with a u-shaped nucleus and pale-blue cytoplasm. this cell is most likely a(n) __________.
If on a blood smear slide prepared using wright's stain, you observe a large cell with a u-shaped nucleus and pale-blue cytoplasm, then this cell is most likely a monocyte.
What is a monocyte?A monocyte is a blood cell ( a white blood cell) that plays a fundamental role in immune responses by protecting the body and eliminating pahtogenic harmful entities such as viruses and microorganisms such as bacteria.
In conclusion, if on a blood smear slide prepared using wright's stain, you observe a large cell with a u-shaped nucleus and pale-blue cytoplasm, then this cell is most likely a monocyte.
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Why do scientists use diamonds to help them gain understanding of the
conditions inside the Earth?
Your answer
* 1 point
Answer:
Scientists use Diamonds instead of other Metals or Non-Metals to help them gain understanding of the conditions inside the Earth as Diamond is the hardest material discovered in this world so far. Its Melting Point and Boiling Point is extremely high, which explains why it doesn't melt when in contact with Lava.
Name the 6 sets of extraocular muscles and the cranial nerve that innervates each one.
Answer:
Each of the six groups of extraocular muscles is innervated by a different cranial nerve.
Explanation:
Superior oblique, inferior oblique, superior rectus, and inferior rectus are all located on the Cranial Nerve Number 3. The lateral rectus is located on Cranial Nerve Number 6.
The extraocular muscles are indeed the 7 extrinsic muscles of something like the human eye. These 4 recti muscles, both superior as well as inferior oblique muscles, and indeed the levator palpebrae superioris are the 6 extraocular muscles that control visual stimuli and eyelid lifting, accordingly. The location of the eye just at the time of muscle contraction affects the activities of the 6 ocular muscles.
The typical tendinous ring, the fibrous ring near the rear of the orbit, is the basis of a 4 extraocular muscles known as the recti.
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Characteristics that are genetically transferred from parents to their offspring are said to be a product of.
Characteristics that are genetically transferred from parents to their offspring are said to be a product of heredity.
The transfer of traits from one generation to the next is known as heredity, also known as inheritance or biological inheritance. Whether through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic make-up of their parents. Variations between people can accumulate through genetics and lead to the natural selection-driven evolution of species. Genetics is the study of heredity in biology. It is well acknowledged that DNA, a molecule that conveys genetic information, is a significant carrier of heritable traits. DNA is a lengthy polymer that contains four types of interchangeable bases. The entire set of characteristics that can be observed in an organism's structure and behavior is referred to as its phenotype.
These traits are the outcome of the interplay between the genotype and the environment.
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Please explain so I can learn how to do questions like this.
Voluntary green power purchases began through a variety of state and utility programs. Between 1999 and 2004, more than 500 utilities in 34 states began to offer their retail customers the option to buy green power. Mandates that required utilities to offer green power products were enacted in 5 states between 2001 and 2003. All but one statement describes a benefit of green power.
A Green power supports the use of renewable energy resources.
B Green power is a cheaper energy resource for the general population.
C Green power reduces greenhouse gas emissions and other pollutants.
D Green power fosters an improved living and community enviorment.
it is A
The green power supported the resources
Who/or what can fix melting polar ice caps????
Answer:
Scientist says giant walls and cooling tunnels may be the best ways to save polar ice.
Explanation:
For years, scientists have been exploring ways to save the vast sheets of ice covering Greenland and Antarctica, which as the climate warms are melting and falling into the ocean.
Answer:
humans can fix it if we stopped using so many polutants to the air and cause climate change but really the savior would be trees because they produce fresh air so if we plant or let the earth grow then it would go back to normal.
Explanation:
cuz
When a person is in a state of fear, the hormone epinephrine is released. This stimulates the activation of energy-generating catabolic pathways in order to provide the body with energy for a response to danger. How would that be helpful to a person who encounters a lion?.
The release of the hormone epinephrine will be helpful to a person who encounters a lion because it will lead to the supply of more energy to the muscles in the body and increased blood supply due to which the person can run away from the place of danger to a safe place.
The adrenal gland is a part of the endocrine system of the body.
It consists of two parts- the adrenal cortex and adrenal medulla.
The adrenal medulla secretes two hormones- adrenaline/epinephrine and noradrenaline/norepinephrine.
These hormones are released in response to any stressful situation and during emergency conditions, so they are called emergency hormones or hormones of Fight or Flight.
These hormones have the following effects on the body:-
They increase alertness.
They increase the heartbeat, the strength of contraction of the heart, and also the respiratory rate.
They also stimulate the activation of energy-generating catabolic pathways.
The above-mentioned effects help a person to escape a stressful situation.
Thus, the release of the hormone epinephrine will be helpful to a person who encounters a lion because it will lead to the supply of more energy to the muscles in the body and increased blood supply due to which the person can run away from the place of danger to a safe place.
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Complete the following sentence.
Humorism is the idea that health is maintained by keeping four fluids in the body in balance. The four “humors” are: yellow bile, black bile, blood, and
.
Phlegm i think this is the correct answer hopefully this helps
In studies of disease-discordant monozygotic twin pairs, one searches each pair for __________________, focusing on those areas of dna that are thought to be involved in the disorder
In studies of disease-discordant monozygotic twin pairs, one searches each pair for epigenetic differences.
What is DNA?The DNA is the genetic material that is found in human beings. The DNA of a person contains the information that could be passed on from parents to the offspring and this is the basis of inheritance.
In studies of disease-discordant monozygotic twin pairs, one searches each pair for epigenetic differences , focusing on those areas of DNA that are thought to be involved in the disorder.
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