Answers
Option B. Pour the drinks into the plain paper cups as blind trials.
A sort of scientific trial wherein neither the contributors nor the researcher is aware of which remedy or intervention participants are receiving till the clinical trial is over. This makes the consequences of the study much less probably to be biased. The blind trials is a test of belief and verbal exchange. a group is blindfolded and then led around the path beneath the instruction of one or more people.
A blind trial examination is one in which neither the individuals nor the experimenters recognize who's receiving a particular treatment. This manner is applied to prevent bias in studies results. Double-blind research is especially beneficial for stopping bias because of the call for traits or the placebo impact.
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Related Questions
What are the Mendelian inheritance principles?
Answers
The Mendelian inheritance principles are called the Law of Segregation, the Law of genetic Dominance and the Law of Independent Assortment.
What are the Mendelian genetic inheritance principles?The Mendelian genetic inheritance principles are a series of laws that dominate genetic patterns of inheritance which were discovered by Gregor Mendel who investigated inheritance in pea plants.
The Law of Segregation indicates that alleles separate in different gametes when they are not linked, and the law of dominance indicates that certain alleles mask the expression of recessive alleles in heterozygous individuals. Moreover, the Law of Independent Assortment is based on genes that are located on different chromosomes.
Therefore, with this data, we can see that the Mendelian genetic inheritance principles are fundamental to understanding inheritance patterns and they were discovered by Gregor Mendel working with different traits in the pea plant.
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The graph shows the altitude and temperature for different layers of Earth’s atmosphere. Based on the diagram, which of the following identifies a characteristic of the atmosphere between the stratopause and the tropopause?
answer choices
Cloud formation occurs in the stratosphere.
The warmest air is found in the mesosphere.
The ozone layer is in the stratosphere.
The troposphere is the closest layer to the sun.
Answers
The statement that is correct regarding the troposphere and the stratosphere is The ozone layer is in the stratosphere. The third one is true. The ozone layer acts as a protection layer that prevents UV light.
What are the layers of the atmosphere?
The atmosphere is divided into many layers, with the troposphere close to the earth and the thermosphere toward the sun, as shown in the diagram. in between two layers, such as the tropopause, which is present between the troposphere and the stratosphere. In the stratosphere, the ozone layer is present, which prevents the sun's UV rays from falling on the earth, and the troposphere is the region where the clouds are formed.
Hence, the correct answer is the third option, which is "The ozone layer is in the stratosphere."
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Which of the following accurately describes chelicerates?
A. The most anterior appendages are mandibles.
B. Predominantly aquatic
C. Most are carnivorous.
D. Have four pairs of walking legs.
E. Bodies consist of three tagmata.
Answers
According to the research, the correct answer is Options are C and D. Most of Chelicerates are carnivorous and have four pairs of walking legs.
What are Chelicerates?They form the phylum Arthropoda and are characterized by having four pairs of locomotor legs and a pair of appendages for sensory and reproductive function.
In this sense, they are represented by the Merostomes, Arachnids and Pycnogonids within these, the Arachnids are the most numerous group, they are almost all terrestrial and have predatory habits, so some have poisonous glands.
Therefore, we can conclude that Chelicerates have four pairs of walking legs for greater locomotor efficiency and speed and one pair of appendages and have adapted to predatory feeding.
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Which of the following practices can be effective in minimizing group harms?
Ongoing consultation
Planning disclosure of research results
Collaborative IRB review
Community consultation
All of the above
Answers
All of the given practices such as ongoing consultation can be effective in minimizing group harm, the correct option is All of the above; option D.
What is group harm?Group harm refers to injury or harm done to individuals because they belong to a particular cultural, ethnic, or social group.
Some steps effective in minimizing group harm include:
Ongoing consultation - this involves continuous dialogue with individuals in the groupPlanning disclosure of research results Collaborative IRB review Community consultation - this involves consulting and communicating with the communityLearn more about group harm at: https://brainly.com/question/14700229
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Which objects would be moved more easily by an applied force? (1 point)
Responses
A. An empty stapler
B. A box of paper clips
C. A dry paintbrush
D. A piece of paper
Answers
The object that is going to be moved most easily is the piece of paper. Option D
What is inertia?We know that the term inertia has to do with a reluctance to move. And we know that when we talk about the inertia of an object that the mass of the object does play a role. Hence the more massive the object is, the more the magnitude of the inertia that acts on the body.
We now have to look at the objects that we have in the list and we can see that it is the piece of paper that has the least mass and we thus expect that the force would move the piece of paper most easily.
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"Evaluate the statements below, and select those that correctly apply to the mechanisms of conjugation, transformation, and transduction.
a. Conjugation requires a gene on the bacterial chromosome to code for a sex pilus, through which the chromosome passes from donor to recipient. * b. Certain cells, called F+ cells, contain a plasmid that codes for a sex pilus to connect to a recipient F- cell and donate a copy of the plasmid. "
Answers
The statements that correctly apply to the mechanisms of conjugation, transformation, and transduction are:
Conjugation - requires a gene on the bacterial chromosome to code for a sex pilus, through which the chromosome passes from donor to recipient; the statement is True
Conjugation - Certain cells, called F+ cells, contain a plasmid that codes for a sex pilus to connect to a recipient F- cell and donate a copy of the plasmid; the statement is True.
What are the mechanisms of conjugation, transformation, and transduction in bacteria?The mechanisms of conjugation, transformation, and transduction in bacteria are the mechanisms by which bacteria acquire foreign DNA.
The processes are described as follows:
transformation - this is the process by which a bacterium takes up a piece of DNA found in its environment.transduction - this is the process by which DNA is moved from one bacterium to another by a virusconjugation - this is the process by which DNA is transferred between bacterial cells through a conjugation tubeLearn more about conjugation, transformation, and transduction at: https://brainly.com/question/1010918
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what is the system a parrot fish use to chew of food
Answers
Answer:
Fused teeth help the parrot fish chew on coral.
• connect redox reactions to energy transformations that occur throughout photosynthesis
Answers
The redox reactions to energy transformations that occur throughout photosynthesis are as follows:
CO₂ molecules are reduced to form higher-energy carbohydrate moleculesenergy from sunlight is used to produce ATP and electron donor molecules capable of decreasing CO₂oxidation of water is associated with the reduction of CO₂ through a series of redox reactions in which electrons passed from one compound to another.the process begins with the absorption of sunlight by protein-pigment complexes, providing energy that drives electrons through the electron transport chain. What is a redox reaction?Redox reaction is described as a type of chemical reaction in which the oxidation states of the substrate change due to a gain and a loss of electrons by the chemical species involved in the reaction.
Oxidation and reduction reactions occur at the same time in a redox reaction.
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A cell must continually make resources in order to maintain regular cellular activities and to create and repair cellular structures. What are created for the cell during interphase? Select all macromolecules that apply. Lipids Nucleic acids Proteins Carbohydrates
Answers
Answer: nucleic acids
Explanation:
Which of the following occurs in meiosis but not in mitosis?
A
Attachment of spindle fibres to the kinetochore
B
Pairing of homologous chromosomes.
C
Replication of DNA prior to the start of cell division.
D
Separation of sister chromatids at anaphase.
Answers
explanation: the traits that are unique to meiosis while not mitosis are homologous chromosomes pairing up, crossing over, and lining up along the metaphase plate.
a patient has mild-stage glaucoma secondary to drugs in both eyes. which icd10cm code from category h40 is used?
Answers
A patient has mild-stage glaucoma secondary to drugs in both eyes therefore the icd10cm code which is used from category h40 is H40.63.
What is Medical coding?This is referred to as the process in which diagnosis, treatment etc are translated into numeric and alphanumeric characters in other to reduce ambiguity in the healthcare system and is used especially during record keeping of the patients.
The icd10cm code from category h40 which is used is H40.63 and it indicates glaucoma. There is H40. 63X1 which is different from the former as a result of it being used for reimbursement purposes.
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Explain the movement of water for each of the solutions based on the concentration levels. Write under each visual.
Answers
For a hypotonic solution the movement of water is from the solution to the cell, in isotonic solution there is no net movement and for hypertonic solution the movement of water is from the cell into the solution.
Hypotonic solution is the one where the concentration of solute is less as compared to the cell. This is the reason why movement of water is from solution to the cell and the animal and plant cell become lysed and turgid respectively.
Hypertonic solution is the one where the concentration of solute is more as compared to the cell. This is the reason why movement of water is from cell to the solution and the animal and plant cell become shriveled and plasmolyzed respectively.
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33. communication between neurons occurs when the action potential reaches the end of the presynaptic cells axon, and:
Answers
Answer: calcium moves into presynaptic cell, causes the release of acetylcholine from the synaptic vesicles into the synaptic cleft, acetylcholine then binds and open the ligand gated sodium channels on the post synaptic neuron causing graded or local potential on the membrane, This potential then opens up Voltage gated sodium channels causing action potential..
Explanation:
prophase of mitosis is characterized by which of the following?
-sister chromatids are visible by light microscopy
-nuclear envelope begins to dissociate
-nucleolus is visible
-nuclear envelope forms
-sister chromatids separate from each other
-nucleolus is no longer visible
Answers
According to the research, the correct answer is Options are A and B. Sister chromatids are visible by light microscopy and nuclear envelope begins to dissociate are part of the prophase of mitosis.
What is the prophase?It is the first phase of cell division, in which chromosomes become visible as isolated entities as Sister chromatids.
In this sense, the separation of the centrioles and the disintegration of the nucleolus and the nuclear envelope also occur.
Therefore, we can conclude that prophase of mitosis is characterized by Sister chromatids are visible and nuclear envelope begins to disintegrate.
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Glucose enters the epithelial cells of the small intestine against its concentration gradient. Select the BEST explanation from the following.
a. Glucose is transported through a glucose pump in the apical membrane that hydrolyzes ATP to ADP and Pi.
b. Glucose is co-transported in the Na+/K+ pump.
c. Glucose is co-transported with Na+, which moves down its concentration gradient into the cell.
d. Glucose follows the water that is pumped into the cell.
e. Glucose enters by diffusion.
Answers
The best explanation is that; Glucose is transported through a glucose pump in the apical membrane that hydrolyzes ATP to ADP and Pi. option A.
What is active transport?We know that the term active transport has to do with a movement that occurs against the concentration gradient. In this case, we are having glucose entering the epithelial cells of the small intestine against its concentration gradient.
As such, we have the to know that there must be energy requirement that would make the process to occur. Without the input of energy it is not possible for active transport to occur.
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Drag each label to the corect location on the image.
Nephrons, the functional unit of kidneys, are responsible for formation of urine. The sentences describe situations that are the result of problems in the urine
ormation process. For the nephron shown below, match each situation to the step in the urine formation process where the problem lies
Stella's urine sample
shows the presence
of large proteins.
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Lenovo
filtration
John's blood test
report indicates
a high toxin level.
Miguel's blood test
shows an increase
in metabolic waste.
M
Janice's urine report
shows the presence
of vital minerals.
secretion
Answers
1. Stella's urine contains protein, which is a sign of poor filtration or insufficient absorption. The protein is left in the filtrate and excreted in urine because there is less reabsorption at the proximal tubule.
2. The high level of toxins found in Johns' blood test suggests that the kidneys are not properly secreting toxins out of the body. As a result, the amount of toxin in the blood rises due to decreased elimination.
3. The kidneys are used to remove metabolic waste from the body. The insufficient reabsorption will be the cause of the metabolic waste. Miguel's blood levels of waste may have increased because his kidneys either failed to filter waste properly or the waste was reabsorbed.
4. Following filtration, the majority of the body's valuable substances are reabsorbed. This enables the body to retain minerals. Vital minerals may be released into Janice's urine as a result of insufficient reabsorption.
What percentage of the kidneys are nephrons?The total number of nephrons (glomeruli) in healthy human kidneys has been shown to vary significantly in several studies. The average number of nephrons per kidney, according to studies, is between 900,000 and one million, but the number of nephrons in a single kidney can range from 200,000 to more than 2.5 million.
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An astigmatism is an irregular curvature of the cornea or lens which causes rays of light to refract unevenly. True/False.
Answers
Answer:T
Explanation:
What is the purpose of nucleic acid?
Answers
Answer:
The purpose of nucleic acids is to keep the life going.
Explanation:
Definition:
Nucleic acid is any group of long, linear macromolecules, either DNA or various types of RNA, that carry genetic information directing all cellular functions: composed of linked nucleotides.
Deoxyribonucleic acid, also known as DNA, is one of the two types of known nucleic acids and plays a significant part in heredity. It is in charge of holding the construction information for each and every chemical required to build a live creature. As a result, practically all living forms possess one.
The other is ribonucleic acid, also known as RNA, which has several tasks, some of which are connected to DNA. But for other animals, RNA also plays a part in heredity. The only obvious example of this is viruses. RNA plays a number of very significant roles in other living things, and is known by various names depending on what it does in a cell. As suggested by their names, some of these types, such as messenger RNA (mRNA) and ribosomal RNA (rRNA), perform particular functions.
So we can say the role of nucleic acids in living things is to keep the life going.
Thanks.
All of the following are wastes removed by the kidneys EXCEPT
urea.
bilirubin.
creatinine.
drugs.
water.
Answers
Answer:
water
Explanation:
the kidneys get rid of wastes in the body but the body needs water so it reabsorbs water
a) urea.
b) bilirubin.
c) creatinine.
d) drugs.
e) water.
water
This plant is called Lilium iridollae. It is also known as the Pot-of-Gold lily. It grows along streams in wet pine woodlands and in pitcher plant bogs. The success of this endangered plant is dependent upon the periodic fires caused by lightning strikes in its habitat.
Answers
The success of the plant Lilium iridollae is dependent upon the periodic fires caused by lightning strikes in its habitat as its occurrence will lead to a decrease in the nutrient and water availability to plants.
What is a Habitat?This is referred to as the area or place where an organism lives and it summarizes the resources, physical and biotic factors which are present in the area.
The success of this endangered plant is dependent upon the periodic fires which are usually caused by lightning strikes in its habitat because this condition makes resources such as water and nutrient unavailable for the plant which will lead to them getting weaker and dying off which is why they are at the risk of extinction which explains the reasoning behind it.
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The full question is:
This plant is called Lilium iridollae. It is also known as the Pot-of-Gold lily. It grows along streams in wet pine woodlands and in pitcher plant bogs. The success of this endangered plant is dependent upon the periodic fires caused by lightning strikes in its habitat. How can this be explained?
which of the following is an acceptable definition of an adaptation among biologists?
a phenotypic variant that results in the highest fitness among a specified set of variants in a given environment.
a derived character that evolved in response to a specific selective agent.
a trait that evolved by natural selection for a particular function (because it increases fitness) from an ancestor that did not have that trait.
all of these are acceptable definitions.
Answers
All of the definitions are acceptable as the definition of adaptation.
What is adaptation?Adaptation, in layman's terms, refers to changes to the traits of individual organisms that ensure their continued survival in a particular environment. Organisms must constantly adapt to their environment in order to stay valid and reproduce.
Among Biologists, adaptation is considered variant traits that ensure the fitness of individual organisms to their environments.
Any traits that increase the fitness of organisms are selected for by natural selection forces while those that decrease the fitness of organisms are selected against by the forces of natural selection.
According to the law of natural selection, only fit individuals are able to survive and reproduce in their environments. The fitness traits are passed across generations while less fit individuals gradually fade off the population.
Thus, all the definitions listed are acceptable as the definition of natural selection as far as biology is concerned.
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bruising over the right upper quadrant could indicate injury to which of the following?
a. liver
b. colon
c. kidney
d. appendix
Answers
The right upper quadrant contains parts of liver, right kidney, gallbladder, pancreas and both large and small intestines.
"In eukaryotic gene regulation, RNA interference occurs through:
A. the accumulation of mRNA that blocks transcription of the target gene by feedback inhibition.
B. the action of microRNAs that block translation of specific mRNA molecules.
C. the action of RNA–protein complexes that degrade the regulatory proteins responsible for initiating transcription.
D. the accumulation of mRNA that blocks transcription of nearby genes."
Answers
"In eukaryotic gene regulation, RNA interference occurs through the action of microRNAs that block translation of specific mRNA molecules and is therefore dfenoted as option B.
What is RNA?This is referred to as ribonucleic acid and it is the genetic material of organisms. It has a ribose sugar unlike a DNA which has a deoxyribose sugar and are both involved in the passing of trait from the parent to offspring.
During the process of eukaryotic gene regulation, RNA interference occurs through . the action of microRNAs that block translation of specific mRNA molecules which is why it was chosen as the correct choice.
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If a segment of DNA were replicated without any errors, the replicated strand would have the following sequence of nucleotides:
5' - ACTACGTGA - 3'
Sort the following replicated DNA sequences by the type of point mutation each contains (frameshift, base substitution, or neither), as compared to the correct sequence shown above.
Sort the items into the appropriate name as frameshift mutation, base substitution mutation and or neither
5'-ACTCGTGA-3'
5'-ATTACGTGA-3'
5'-ACTACGTGT-3'
5'-ACTAAGTGA-3'
Answers
5'-ACTCGTGA-3' - Frameshift mutation
5'-ATTACGTGA-3' - Base substitution mutation
5'-ACTACGTGT-3' - Base substitution mutation
5'-ACTAAGTGA-3' - Base substitution mutation
Frameshift and base substitution mutationsMutation generally refers to a sudden change in the base sequence in the genome of cells or organisms.
Mutation can occur by:
Deletion of nucleotide bases: outright removal of basesInsertion of nucleotide bases: addition of foreign basesSubstitution of nucleotide bases: displacement of a base or bases by another base or basesThe deletion or insertion of nucleotide bases in such a way that the order of reading the triplet bases that constitute the genetic code changes is otherwise known as frameshift mutation. In order for this to happen, the deleted or inserted bases will not be in multiples of 3.
In other words, frameshift mutation will occur if bases are inserted or deleted but not in multiples of 3.
Thus:
5'-ACTCGTGA-3' is a frameshift mutation because a base has been deleted off.5'-ATTACGTGA-3' is a base substitution mutation because the second C has been substituted by T.5'-ACTACGTGT-3' is a base substitution mutation because the last A has been substituted by T.5'-ACTAAGTGA-3' is a base substitution mutation because the second C has been substituted by A.More on mutations can be found here:https://brainly.com/question/13923224
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Complete each sentence by dragging the proper label into the appropriate position. phosphate buffer system A is any mechanism that resist changes in pH. bicarbonate A uses direct elimination of acids bases, or carbon dioxide from the body in order to adjust systemic acidity. carboxyl A substance that binds H+ during times of acidity and releases H+ during time of alkalinity is referred to as a
Answers
A buffer is any mechanism that resists changes in pH.
A substance that binds H+ during times of acidity and releases H+ during times of alkalinity is referred to as a phosphate buffer system
A uses direct elimination of acids bases, or carbon dioxide from the body in order to adjust systemic acidity bicarbonate buffer.
What is a buffer?A buffer is a substance that resists changes to its pH when a small quantity of a strong acid or base is added to it.]
Buffers are important in living organisms as they help to maintain the pH of the blood to prevent extreme changes in the body.
There are several buffer systems in the body. The buffer systems in the body are:
the bicarbonate buffer system (HCO₃⁻/CO₂) - consists of bicarbonate ions and carbon dioxidehemoglobin buffer present in erythrocytesthe phosphate buffer,proteins, in the blood andammonium buffer.Learn more about buffer systems at: https://brainly.com/question/11033169
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People aged 80 and older are more likely to be victimized by crime than people in any other age group. True / False
Answers
Answer:
false
Explanation:
people 80 and older are less likely to be victimized of crime.
Based on the data shown in the graph, which of the following best describes how ecologists could determine when this ecosystem is approaching a climax community?
Answers
When researchers keep track of the kind and quantity of producers present each year following the eruption, they may determine when an ecosystem is reaching its peak.
How to determine the climax community?When an ecological community reaches the last stage of its ecological succession, it has reached its peak.
Animals and plants have reached this stage of development where they coexist peacefully.
Therefore, whether a community is approaching its climax, biologists must monitor the number of producers that settle in each ecological succession.
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identify the characteristics associated with australopithecus afarensis in contrast to earlier hominins.
Answers
The Characteristics of Australopithecus afarensis in contrast to earlier hominins include the following:
round heels, double arches (front-to-back and side-to-side), and nondivergent big toesdiverse diet indicated by diverse tooth wearlived in various habitatsWhat are the Australopithecus afarensis?The Australopithecus afarensis is described as an extinct species of australopithecine which lived from about 3.9–2.9 million years ago in the Pliocene of East Africa. The first fossils were discovered in the 1930s, but major fossil finds would not take place until the 1970s.
The non-Characteristics of Australopithecus afarensis include :
flat facehuman-sized brainThis species is famous and best known of our ancestors due to a number of major discoveries that includes
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the coenzyme form of niacin is central to the metabolism of ________.
Answers
The coenzyme form of niacin is central to the metabolism of glucose and it helps the enzyme during catalysis.
How does a coenzyme help the protein activity?A coenzyme helps the protein activity by attaching the active site of the enzyme and thus enhancing the binding between this protein and the substrate in order to increase the rate of reaction.
Therefore, with this data, we can see that a coenzyme such as the niacin coenzyme (which is the vitamin B3) helps the enzyme activity by binding to the active site of the enzyme.
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Which of these technological advances is not an example of artificial selection?
Answers
The insertion of coral genes into fish to give them a bright neon color is not an example of artificial selection (Option D).
What is the artificial selection method?The artificial selection method refers to the cross by humans between organisms of the same species in order to obtain offspring which will be selected for a given phenotypic desired trait, which allows obtaining enhanced plants or animals.
The artificial selection method is very useful in agriculture to produce plants having higher yields or animals having higher meat quality.
Therefore, with this data, we can see that the artificial selection method is based on the cross of organisms while the genetic engineering techniques include the insertion of genes.
Complete question:
Which of these technological advances is not an example of artificial selection?
A. Breeding of short-haired dogs
B. The domestication of the house cat
C. The cultivation of a tomato species with a rich flavor
D. Insertion of coral genes into fish to give them a bright neon color
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