The model is what the mice constitutes when researchers test a new human cancer drug using mice.
Scientific insight, or discovery, entails the creation of a theory to explain an observed phenomenon, the planning and carrying out of experiments to test the theory, and the feedback of experimental findings to the theory's evolution. This procedure, which is sometimes referred to as the scientific method, is essential to all scientific discovery projects.
Experimental modeling is the use of animals (experimental models) to simulate the onset and progression of diseases as well as to evaluate novel treatments before they are administered to humans. Xenograft models are animals that have human malignancies or other tissues implanted.
Because they offer extra insights that are frequently impractical or impossible to learn through real-world experimental and theoretical analysis alone, modeling and simulation are highly appreciated in scientific discovery.
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Question correction:
An experienced goldfish breeder receives two unusual male goldfish. One is black rather than gold, and the other has a single tail fin rather than a split tail fin. The breeder crosses the black male to a female that is gold. All the F1 are gold. She also crosses the single-finned male to a female with a split tail fin. All the F1 have a split tail fin. She then crosses the black male to F1 gold females and, separately, crosses the single-finned male to F1 split-finned females. The results of the crosses are shown below.
Black male ×F1 gold female:
Gold 32
Black 34
Single-finned male ×F1 split-finned female:
Split fin 41
Single fin 39
1. What do the results of these crosses suggest about the inheritance of color and tail fin shape in goldfish?
-The inheritance of color and fin shape are due to segregation of two alleles at the same gene.
-The inheritance of color and fin shape are each due to segregation of two alleles at a single gene.
-The inheritance of color is due to segregation of two alleles at different genes; the same is true for fin shape.
Roberto examines two molecular models. He sees that the atoms are the same in each model and are attached in the same order in each model. However, he cannot make the models appear the same without breaking a double bond.
The thing that the models represent isB. two geometric isomers that have the same molecular formula.
How to illustrate the information?Their prior and subsequent positions are depicted by the bond's hue. The two models that Roberto is in possession of are Structure 1 and Structure 2. Due to differences in the blue and green bonds, these two structures are not identical to one another (still the molecular formula of both compound is same). Structure 2 is identical to and becomes structure 3 when structure 2 is broken at the double bond, rotated 180 degrees, and then reassembled.
It indicates that the positions of the substituents in space are different (3D). Furthermore, we are aware that a double bond cannot be turned into a single bond. Consequently, we have two isomers (such isomers that have distinct positions) as a result of the restriction on double bond rotation.
Therefore, the thing that the models represent is two geometric isomers that have the same molecular formula.
In conclusion, the correct option is B.
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Roberto examines two molecular models. He sees that the atoms are the same in each model and are attached in the same order in each model. However, he cannot make the models appear the same without breaking a double bond. What do the models represent?
two structural isomers that have the same molecular formula
two geometric isomers that have the same molecular formula
two organic compounds that have the same structural formula
two models of a single organic compound
Microbes were first considered for bioremediation after marjory stephenson observed that they were digesting enormous quantities of waste from a sugar beet factory. the waste was accumulating in:_______
Microbes were first considered for bioremediation after Marjory Stephenson observed that they were digesting enormous quantities of waste from a sugar beet factory. The waste was accumulating in river.
Define microbes.Microbes are extremely little living entities that can't be seen with the human eye and are present all around us. In the air, on land, and in water, they exist. Millions of these germs, also known as microorganisms, reside inside the human body.
Some microorganisms make us sick, while others are crucial to our wellbeing.
The most prevalent kinds include fungus, viruses, and bacteria. Protozoa are a class of microorganisms as well. These are tiny living creatures that cause toxoplasmosis and malaria, among other illnesses.
Most microorganisms don't pose a threat to people. Numerous of them even reside on or in our bodies and support our continued wellness.
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Histones are special proteins in nucleosomes:
true
false
Answer:Your answer is true.
Explanation:
A substance with 20 carbon-14 atoms will have only
years.
left after
A substance with 20 carbon-14 atoms will have only nitrogen - 14 left after over 5730 years due to radioactive decay.
What makes carbon - 14 different from carbon - 12?The element carbon has a naturally stable isotope C- 12, but C -14 is the unstable isotope.
C - 14 is the most commonly consumed isotope of carbon by all living organisms. Radiocarbon dating is the process of determining the age of a sample by examining the existence half life-life of this element. In the course of certain years when the life form's existence is extended the C- 14 gradually turns into N - 14 (Nitrogen).
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What are the two circular dark purple structures that appear in the middle of the central red blood cell?
Plasmodium trophozoites are the two circular dark purple structures that appear in the middle of the central red blood cell.
Plasmodium falciparum's ring-shaped trophozoites (rings) are frequently slender and delicate, with an average diameter of 1/5 the size of a red blood cell. One or two chromatin dots may be present in rings. RBCs that have been infected multiple times are not uncommon, and they can be detected on the RBC's periphery.The most lethal form of malaria in humans is caused by the unicellular protozoan parasite Plasmodium falciparum. Falciparum malaria, the most serious type of the illness, is brought on by the parasite and is spread through the bite of a female Anopheles mosquito.To know more about plasmodium visit:
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A clinical trial powered to show the efficacy of a drug in a specific disease population, with the goal of using these data as part of a marketing application, is usually considered a _____ study
A clinical practice powered to show the effectiveness of a drug in typical condition residents, to use these data as part of a transaction application, is usually deemed a Phase IV study.
How do clinical trials work?Clinical trials are research studies carried out on people with the intention of evaluating a behavioral, surgical, or therapeutic intervention. They are the primary technique employed by researchers to ascertain whether a novel therapy, such as a new drug, food, or medical device (such as a pacemaker), is secure and efficient in people. Pay close attention to the sound. a specific kind of research project that tests the efficiency of cutting-edge medical treatments on people. These studies investigate novel methods for illness prevention, detection, diagnosis, and treatment. A clinical trial may evaluate brand-new drugs, medical devices, vaccines, biologicals, surgical methods, and other medical practices.A Phase IV study is typically defined as a clinical practice that is powered to demonstrate the efficacy of a treatment in patients with typical conditions in order to use the data as part of a transaction application.To learn more clinical trials, refer to:
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7.
message
Which best describes how winds in the jet stream blow?
No pattern
Between two boundaries of hot air
Between two boundaries of cold air
Between a boundary of cold air and a boundary of hot air
Answer:
D.
Explanation:
Between a boundary of cold air and a boundary of hot air
What is the average amount of time an American spends consuming media in a week?
A.
10 hours
B.
18 hours
C.
22 hours
D.
28 hours
Please select the best answer from the choices provided
A
B
C
D
Answer: The correct choice would be 18 hours.
Explanation:
Answer:
d. 28 hours
Explanation:
Which of the following groups would be associated with all scientists?
1.scientific community
2.biologists
3.scientologists
4.body of scientists
Answer: Scientific Community
Explanation: I believe it would be the scientific community. Biologists are scientist that specialize in biology, scientologists are not scientist they are a religious group, and body of scientist usually refers to a group of scientists. So I believe that the answer would be community.
Why would whole grains be such a good source of energy
Answer:
Whole grain contains carbs, proteins, vitamins, etc. this creates a food supply for the germ, and energy for the rest of the plant.
Most fats and fat-soluble nutrients are absorbed and carried through the ______ system.
Most fats and fat-soluble nutrients are absorbed and carried through the lymphatic system.
Which circulatory system transports the majority of lipids and nutrients that are fat soluble?The lymphatic system's second job is to transfer lipids and fat-soluble vitamins from the digestive tract to the venous circulation once they have been absorbed from the digestive system. Villi, which resemble fingers, cover the mucosa that borders the small intestine.
The majority of the nutrients in your meal are absorbed in your small intestine before being transported by your circulatory system to other areas of your body for storage or use. A special type of cell helps nutrients pass through the gut lining and into the circulation.
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Which of the following best describes the relationship between enzymes and substrates?
1.Each enzyme can form many products from a specific set of substrates.
2.Each enzyme can change the form of the substrates attached to it.
3.Each enzyme is designed to work with specific substrates for specific metabolic reactions.
4.Each enzyme is designed to work with substrates from all metabolic reactions.
The relation between substrates and enzymes can be best described as: (3) Each enzyme is designed to work with specific substrates for specific metabolic reactions.
Substrates are the actually the reactant in an enzymatic chemical reaction. It combines with the enzymes to undergo some conformational or chemical change in itself and form the product. Each substrate can reacts with some certain type of enzymes only.
Enzymes are the biological catalysts. These work to to make the rate of any reaction faster. This is done by lowering the activation energy of the chemical reaction. Enzymes are generally proteinaceous in nature.
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How are prokaryotic cells like eukaryotic cells?
Which example demonstrates metabolism? (brainly wont let me see other answers ;( )
The group of chemical processes in organisms that maintain life is known as metabolism. The three primary functions of metabolism are: converting the energy in food into energy that can be used to power cellular functions.
It is convenient to divide metabolism into two groups: Molecules are broken down during catabolism to provide energy. All of the substances that the cells require are synthesised during anabolism. Metabolic processes include the chemical reactions that keep you alive. One example of metabolism is the rate at which you burn fat and consume calories. the constant anabolic and catabolic chemical and physical processes that occur in living things and their cells. Specific areas of the cell host metabolic events. The cytoplasm is where amino acid degradation and some phases of glycolysis, fatty acid synthesis, and glycogen synthesis take place. Within mitochondria, certain metabolic pathways are located at particular points.
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What Anatomical Term Would You Use To Refer To The Positioning Of Body Parts In Relation To The Midsagittal Plane?
What does the success of southwest airlines tell you about the relative importance of industry company-specific factors in explaining a con performance?
Answer:Southwest Airlines' business model is based on extremely efficient operations, low-cost pricing, and innovative logistics solutions. Furthermore, their strategy also includes a deep focus on customer experience and looking ahead. Finally, none of this would be possible without a motivated team of employees.
Explanation:
The __________ is a thin fiber that carries signals away from the cell body. a. axon b. dendrite c. neuron d. glial cell please select the best answer from the choices provided a b c d
Answer:
Axon, also called nerve fibre, portion of a nerve cell (neuron) that carries nerve impulses away from the cell body.
Explanation:
Letter A.
Mitotic cell division is a process by which a cell divides to produce blank______ new daughter cells that are genetically blank______ the original cell.
Mitotic cell division is a process by which a cell divides to produce Two new daughter cells that are genetically identical to the original cell.
What is Mitotic cell division?In the cell cycle, the newly generated DNA is divided during mitosis, which also results in the formation of two new cells with the same number and type of chromosomes as the parent nucleus.Asexual reproduction is a process called mitosis that is seen in unicellular organisms.The proliferation of cells and the replacement of damaged cells depend on mitosis. Genetic diseases could be caused by aberrations during mitosis.What are the stages of Mitotic cell division?The mitotic phases are:
Prophase: The chromosomes shorten and thicken during prophase.Metaphase: Chromosomes align in the center of the cell during metaphase.Anaphase: Chromatids split off at the centromere and migrate to opposite poles during anaphase.Telophase: Following the reorganization of nuclear envelopes around each cluster of chromosomes, two nuclei are created.To learn more about Mitotic cell division visit:
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Read the sentence. then answer the question that follows. the actor's final performance was galvanizing; as a result, everyone in the audience was mesmerized. which type of context clue would you use to determine the meaning of galvanizing? antonym cause and effect example inference
The actor's final performance was galvanizing; as a result, everyone in the audience was mesmerized. From this we can conclude that the clue from the context that could be used to know about the meaning of galvanizing is “the audience was mesmerized''.
We can know about the meaning of the word galvanizing by reading it further how the audience was mesmerized. Thus, the context clue is that the word is something that is a synonym of mesmerized or expresses the same feeling of being mesmerized.
Galvanizing originally means excite or energized and its antonym is demotivated or bored. For example, the figure skater's performance was galvanizing.
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Epithelial tissue described as many layers of thin flat cells is classified as
Stratified
Simple
Transitional
Squamous
Pseudostratified
Cuboidal
Columnar
Epithelial tissue described as many layers of thin flat cells is classified as stratified tissue.
What are epithelial tissue?
Epithelial tissue are widespread amongst the body. They form the covering of a body surface. Epithelium tissue is found in variety of functions such as protection, excretion, filtration and diffusion.
Epithelial tissue are of different types : Cuboidal, columnar and squamous. Simple cuboidal epithelium is found in glandular tissue and in kidney tubules.
Pseudostratified epithelium is found in respiratory tracts and the male reproductive tract. Glandular epithelium is specilized to produce and secrete substance. Squamous epithelium is flattened, polygonal tissue found in the skin tissue.
Therefore, Epithelial tissue described as many layers of thin flat cells is classified as stratified tissue.
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Which of the enzymes listed is most likely to be found in an organism that lives in the arctic?
(c) P. haloplanktis DNA ligase is the enzyme listed which js most likely to be found in an organism that lives in the arctic.
In the ocean around the Arctic shore, pseudoalteromonas haloplanktis grows. It is a chemoautotrophic oxygenic organism. It has a number of cold-resistant enzymes that keep its metabolism going. In general, the greater flexibility at low temperatures results in decreased stability at higher temperatures.
Though widespread, thermolability isn't present in all cold-adapted enzymes. Recently, it was shown that three superoxide dismutases from the Antarctic psychrophilic ciliate Euplotes focardii have melting points between 50 and 70 °C, indicating a mix of cold adaption and relative tolerance to high temperatures.
It was discovered that the Escherichia coli homologs of groEL and thioredoxin from the Antarctic bacterium Pseudoalteromonas haloplanktis TAC125 were only slightly less stable.
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Question correction:
Which of the enzymes listed is most likely to be found in an organism that lives in the Arctic?
a. Salivary amylase
b. F. acidiphilum DNA ligase
c. P. haloplanktis DNA ligase
d. Rennin
e. T. kodakaraensis DNA ligase
What are the differences between the health risks of young men and young women?
young women
young men
Answer:
The health risks depend on the immune system.
Explanation:
It is more likey a young women survives a desease than a man if she keeps her body as healthy as possible
Drugs undergo biotransformation in the liver or gastrointestinal track. what benefit is produced when the drugs become water soluble (hydrophilic)?
Biotransformation is a metabolic process that occurs primarily in the liver and helps facilitate the removal of both exogenous and endogenous substances .A series of reactions alters the chemical structure of these substances. Enzymes that catalyze these reactions can inactivate, activate, or even poison their substrates.
Basic
Biotransformation pathways are divided into Phase I, Phase II, and Phase III. These reactions can occur simultaneously or sequentially.
Phase I: Delivers polar, water-soluble metabolites that are often still active. Many of the products in this phase are also substrates for Phase II. Oxidation by cytochrome P450 (most common)
discount
Hydrolysis
Phase II: Gives large polar metabolites by adding endogenous hydrophilic groups to form water-soluble, inert compounds that can be removed from the bod.
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Consumers film in the blanks
_____get thriller energy requirements by consuming other organisms.______do this by eating only plants while______eat only anímals.______eat both plants and animals while_______eat fragments of dead matter.Heterotrophs are also called_______.
Autonomic motor neurons can be blank______, while somatic motor neurons are always excitatory.
Autonomic motor neurons can be stimulatory or inhibitory, while somatic motor neurons are always excitatory.
What is an autonomic nervous system?The autonomic nervous system is a component of the peripheral nervous system that controls involuntary physiologic processes like heart rate, blood pressure, respiration, digestion, and sexual arousal.It is divided into three anatomical divisions: sympathetic, parasympathetic, and enteric.Motor neurons' post-ganglionic axonal processes in the autonomic ganglia innervate organs and tissues throughout the body."Autonomic motoneurons" or "final motoneurons" are motor neurons found in the autonomic ganglia. The hypothalamus is the primary brain site for autonomic nervous system central control, and the paraventricular nucleus is the primary hypothalamic site for this control. Some symptoms of an autonomic nerve disorder include dizziness and fainting when standing up, as well as orthostatic hypotension.To learn more about Autonomic nervous system:
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The net primary production of a pine forest on a lava flow on mount fuji is about 175,000kcal/m2/yr, and the plant respiration is estimated to be 115,000kcal/m2/yr. What is the total amount of energy transferred during photosynthesis for this ecosystem?.
The total amount of energy transferred during photosynthesis for this ecosystem equals 260,000 kcal/m2/yr.
In order to respond to this question, we must be aware of Energy gathered and transformed into chemical energy throughout photosynthesis is known as gross primary productivity (GPP). Net primary productivity (NPP) is the product of gross primary output and respiration rate.
Therefore, we must add NPP to the respiration rate in order to determine GPP. If, then
NPP = 165,000 kcal/m2 per year
R = 9.5 kcal/m2/year
NPP equals GPP - respiration
NPP equals GPP - respiration
NPP=GPP-Respiration
Therefore,
NPP + R, therefore GPP.
NPP+R= GPP
GPP is equal to 95,000 kcal/m2/yr plus 165,000 kcal/m2/yr.
GPP = 260 kcal/m2/year
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Why must the glandular tissue be close to the capillaries?
What would be the resulting 6 base sequence after combining the xhoi-generated sticky end with a sali-generated sticky end? (you can choose more than one correct answer.)
GTGAC would be the resulting 6 base sequence after combining the xhoi generated sticky end with sali generated sticky ends.
How sticky ends produce? Why they are called sticky ends?Restrictions enzymes cause sticky ends to form. Although they cut the DNA strand between the identical two bases on the opposing strands, the restriction enzymes cut the DNA strand somewhat outside of the palindromic sequences' centers. At the ends, single-stranded sections are left. On each strand, there are protruding sections known as "sticky ends."
Due to the hydrogen connections that these sticky ends create with their complementary cut counterparts, they are known as sticky ends. The DNA ligase enzyme's function is made easier by the ends' stickiness.
So, the answer would be GTGAC .
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GTC GAC would be the resulting 6 base sequence after combining the Choi-generated sticky end with a sali-generated sticky end.
What are sticky ends?A restriction enzyme may cut DNA at a specified sequence of nucleotides, typically 4, 6, or 8 nucleotides long, and can produce blunt ends with symmetrical cleavage or "sticky" ends with asymmetrical cleavage.
When the restriction enzyme makes a cut between two bases on the same strand at one end of the sequence and then a second cut on the opposite end of the complementary strand, the result is a "sticky" end.
The result will be two ends of DNA with certain nucleotides lacking complementary bases.
A restriction enzyme recognizes palindromic sequences or sequences that are the same whether they are read forward or backward.
Palindromic sequences are sequences that are the same whether they are read forward or backward.
These "sticky" ends allow "foreign" DNA to be inserted into the host genome.
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Which term best describes the plasma membrane? hypotonic permeable selectively permeable solid
The plasma membrane is selectively permeable. Plasma membrane is also known as cell membrane.
What is Plasma membrane? The plasma membrane is also known as the cell membrane. The primary function of the plasma membrane is to protect the constituents of the cell from the outside environment. They are primarily composed of lipids and proteins that exhibit selective permeability. The plasma membrane is selectively permeable, keeping track of which components enter and exit the cell. The plasma membrane's four primary functions are identification, communication, regulation of solute exchange across the membrane, and isolation of the cytoplasm from the external environment. The plasma membrane is mostly made up of phospholipids, which are made up of fatty acids and alcohol. The phospholipids in the plasma membrane are organized in two layers, known as a phospholipid bilayer, with a hydrophobic (water-hating) interior and a hydrophilic (water-loving) exterior.To learn more abut plasma membrane:
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Help please if u can brainless I will give
The two statements that pertain both to the groups and the period according to the question are;
Information about the element can be obtained from itEvery element is in oneWhat is the periodic table?The periodic table is arranged in rows and columns. The rows are called the periods while the columns are called the groups. The elements in the same group are chemically similar and have the same number of valence electrons.
The elements in the same period may be dissimilar in the sense that there is a graduation from reactive metals to nonmetals but the number of shells in the elements in a period remains the same.
Thus, the two statements that pertain both to the groups and the period are;
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