Select the correct text in the passage.
Which phrase indicates a limit to the scientific accuracy of the experiment?
For the study of a particular drug, Marcus proposes an experiment with a particular population. Approximately 200,000 people in the United States take this drug. He started out with a sample size of 300 people. First, he conducts research on the medical history of the people in his study. He collects the information using reliable sources. He decides to repeat the experiment using a larger sample size.
Answers
The phrase that indicates a limit to the scientific accuracy of the experiment is to repeat the experiment using a larger sample size.
What is Scientific accuracy?Scientific accuracy may be defined as the correctness of a single measurement that should be accomplished by scientists during their practical experiments.
The complete question is as follows:
the sample size of 300 people.research on the medical historycollects the information using reliable sourcesrepeat the experiment using a larger sample size.The sample size will always play an active role in research. It also has a big impact on the accuracy of a scientific study. A larger sample size gives the most accurate results as compared to small sample size.
Therefore, the correct option is D.
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Answer:
" a sample size of 300 people "
Hope this helps!
Explanation:
Related Questions
which question can be using the scientific process
Answers
Answer:
I'm not great with this subject... but what are the questions given? I may be able to help in that way
Explanation:
When there are a lot of molecules in one place it is considered an area of:
Answers
When there are a lot of molecules in one place it is considered an area of high concentration. Details about concentration can be found below.
What is concentration?Concentration can be described as the amount of solute in a solution measured in suitable units.
The concentration of a solution is dependent on the amount of solute molecules in that solution.
A solution is said to have a high concentration if it has more solute molecules while a low concentration has less solute molecules.
Therefore, when there are a lot of molecules in one place it is considered an area of high concentration.
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Two students are planning an experiment that will test how planaria (aquatic flatworms) respond to different environments. They will conduct two investigations—one that tests the worms’ responses to different water temperatures and one that tests the worms’ responses to different levels of acidity. Student 1 wants to buy two groups of flatworms and use a different group for each investigation. Student 2 thinks the same group of worms should be used for both investigations.
Do you think either student’s method would give more accurate results? Why or why not? Explain your response.
Answers
Student 2 is correct and the same group of worms should be used.
What is an experiment?An experiment is the process by which we establish cause and effect relationships in science. The control variable are those that must be kept the same in the experiment.
We know that the experiment will only be valid if the research is carried out with the same group of worms. If different groups of worms are used, other factors may account for the results obtained.
Thus student 2 is correct and the same group of worms should be used.
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Sort the activities based on whether they decrease or maintain biodiversity.
Answers
The activities that decrease the biodiversity are excessive mining to obtain minerals and releasing sewage water into lakes.
The activities that maintain biodiversity are planting more trees and prohibiting fishing during breeding season.
What is biodiversity?The range of plant and animals on the planet or in a specific natural surroundings, that is significant and desirable.
Nature was despite everything is a productive wellspring of motivation in drug store, beauty care products, and agro-food enterprises for the revelation of bioactive items.
Informatics is currently present in most human exercises. In silico devices might help in various situations while concentrating on normal substances: in pharmacognosy, to store and construction the enormous and expanding number of information, and to work with or speed up the examination of regular items concerning conventional purposes of normal assets; in drug revelation, to soundly plan libraries for screening normal compound mimetics and distinguishing proof of organic exercises for normal items.
The activities based on whether they decrease or maintain biodiversity are:
Maintains :planting more trees
Decreases: excessive mining to obtain minerals
Decreases: releasing sewage water into lakes
Maintains: prohibiting fishing during breeding season
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Answer:
Explanation:
PLANTING MORE TREES EXCESSIVE MINING TO OBTAIN MINERALS RELEASING SEWAGE WATER INTO LAKES PROHIBITING FISHING DURING BREEDING SEASON
What molecule is the final electron acceptor in the Electron Transport Chain?
Answers
The final electron-accepting molecule in the electron transport chain is oxygen.
Role of oxygen in the electron transport chainOxygen mainly acts as an electron acceptor in the electron transport chain. More specifically, it acts as the final electron acceptor to ensure that oxidative phosphorylation takes place.
Without this final electron acceptor, the electron transport chain will not be able to complete the cycle, and energy molecules in the form of ATP will not be formed.
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Why do you think the bones of the legs are at particular risk for fractures in rod
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he condition of the Earth’s atmosphere at a given place and time is known as __________.
A.
climate
B.
precipitation
C.
temperature
D.
weather
Answers
Answer: D weather
Explanation:
This diagram shows a chemical reaction in which two glucose molecules combine to form a molecule of maltose.
Drag the labels to their appropriate locations in the diagram.
First, drag the labels of Group 1 to their respective targets to identify the types of sugars and the type of reaction shown.
Then drag the labels of Group 2 to their respective targets to identify the atoms, chemical groups, or molecules involved.
Not all labels will be used.
Answers
Option A is amino acids and D is peptide bond.
How protein is formed?Proteins are the polymer of amino acids which means that large number of amino acid combines to form protein molecule. The function of protein is to make muscle cells inside the body. The bonds present in protein are peptide bonds.
Proteins made up the structure of many enzymes or in other words, Enzymes are proteins that are comprised of amino acids which are linked together in one or more polypeptide chains.
So we can conclude that Proteins are the polymer of amino acids.
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What are the defining characteristics of reptiles?
Answers
Reptiles are a group of vertebrate animals in the Reptilia class.
What are reptiles?
They are animals in the Reptilia class. Their main characteristics include:
They have backbones.Their body temperature varies with that of the environment.Their bodies are covered with scales.Fertilization is internal and reproduction is by laying eggs or giving birth to live ones.More on reptiles can be found here: https://brainly.com/question/15147975
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What was the background information that Schleiden and Schwann
needed to perform their experiments about cells?
Answers
Theodore Schwann and Mattias Schleiden needed the background information about cell is that how cells originate and functions in the body of animals as well as plants.
What is the contribution of Schwann and Schleiden?Schwann and Schleiden proposed the cell theory, which states that all living organisms are composed of one or more cells. The cell is the basic unit of structure and function in organisms.
Each cell arises from a pre-existing cell.
The basic information that Schwann and Schleiden needed before performing the experiments about cells is how cell-derived in this nature become the most important part of life in living entities.
They also wanted to know the actual function and metabolic activities of the cell.
Therefore, it is well described above.
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What accurately describes a difference between fungi and plants?
Answers
Fungi are different from plants in that they are achlorophyllous.
Fungi vs plantsFungi and plants are both eukaryotic in nature when it comes to their cells.
However, plants differ from fungi in that plants contain a green pigment known as chlorophyll while fungi do not. The green pigment enables plants to photosynthesize.
Thus, fungi are said to be achlorophyllous.
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As an individual ages, new neurons and dendrites appear, but others atrophy. Compared to when they were adolescents, adults have fewer neural connections and their brain size _____ as they continue to age.
Answers
The brain and central nervous system shrink as we age.
What happens to the brain when we age?The brain is one of the most important organs in our body because all the nerve signals are produced there for our body to function.
In the brain we find nerve connections through neurons. A particular aspect of them is that during childhood and adolescence they multiply as we learn new things.
However, once we reach the stage of old age, these nerve connections deteriorate and are reduced, therefore, the size of the brain and the central nervous system decreases.
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When cartilage is produced at the epiphyseal side of the metaphysis at the same rate as bone is deposited on the opposite side, bones.
Answers
Answer:
grow longer
Explanation:
In a long bone, the epiphyseal is the growing region. In young bones, bone formation occurs in a layer of hyaline cartilage. The epiphyseal plate forms cartilage on the epiphyseal end. Cartilage is calcified on the diaphyseal side, and the diaphysis lengthens.
It starts to grow longer
write the categories of classification in hierarchical sequence
Answers
Answer:
these are the seven taxonomic units:
Kingdom -it has the largest number of members and also the largest taxonomic unit
phylum (animals)/division (plants)
class
order
family
genus
species-it has the least number of members who freely interbreed to give rise to an infertile of spring
Explanation:
hope you got it! if there's any question feel free to ask .good day.
Answer:
Kingdom
Phylum/division
Class
Order
Family
Genus
Species
Explanation:
formulae
King
Philip/David
Can
Order
For
Green
Soaps
A husband and wife have two sons. One boy has a straight thumb, while the other has a bent thumb. What causes this difference?
Answers
The boys have different alleles
What animal group lacks true tissues and includes species that are asymmetrical
Answers
The animal group which lacks true tissues and includes species that are asymmetrical is referred to as sponges.
What is Sponges?These are invertebrate animals which belong to the phylum porifera and consists of lots of pores.
They don't give equal parts when divided into half and they lack the presence of true tissues.
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The animal group which lacks true tissues and includes species which are asymmetrical is; Sponges.
Which animal group includes species that are asymmetrical?It follows from biology of classifications that the defining characteristic of sponges includes the fact that they lack true tissues and the species are asymmetrical. Hence, the features indicated in the task content are suggestive of sponges.
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summary of what occurs during transcription
Answers
The act of copying information from a strand of DNA into a fresh messenger RNA molecule is called transcription (mRNA).
DNA preserves genetic material as a reference or template safely and permanently in the cell nuclei.
The process of gene expression starts with transcription. A gene's DNA sequence gets transcribed into RNA during this process. The DNA double helix must unwind close to the gene being transcribed before transcription can begin. A transcription bubble is the term for the area of opened-up DNA.
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What blood vessel is a tributary of the hepatic portal vein?
Answers
According to the research, the linear vein is a tributary blood vessel of the hepatic portal vein.
What is the hepatic portal vein?It is a blood vessel that carries deoxygenated blood from the digestive organs and the spleen to the liver.
The linear vein is one of the branches of the celiac trunk that supplies the spleen and gives off branches to the stomach and pancreas.
Therefore, we can conclude that according to the research, the linear vein is a tributary blood vessel of the hepatic portal vein.
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Active and passive immunity involves all of the following except receiving mother's antibodies through breast-feeding. exposure to a pathogen either naturally or by vaccination. memory B cells responding to a second exposure to the same pathogen. the stimulation of a nonspecific immune defense. receiving mother's antibodies through the placenta.
Answers
Explanation:
Immunity is the ability of an animal to resist infection.
There are two types of immunity in the body; INNATE OR INHERITED IMMUNITY AND ACQUIRED IMMUNITY. Inherited immunity it is the type of immunity that one is born with. It is passed from parent to offspring.
Acquired immunity is immunity to particular infections that is not inherited but has developed in the animal's life as it interacts with its environment. Acquired immunity can develop naturally in which case it is called NATURAL ACQUIRED IMMUNITY OR ARTIFICALLY.
ACTIVE IMMUNITY is the form of acquired immunity in which the body produces its OWN antibodies against infections. While PASSIVE IMMUNITY is the form of acquired immunity in which an individual is PROTECTED AGAINST INFECTION BY RECEIVING ANTIBODIES.
NATURAL ACQUIRED IMMUNITY
when attacked by the same pathogens again, they don't became seriously ill. this is because memory cells are able to recognise the antigens and stimulate the immune system to produce antibodies against the pathogens. This is known as NATURAL ACTIVE ACQUIRED IMMUNITY. It develops when one recovers from an infection.
During pregnancy, the mother passes antibodies across the placenta to the foetus. At birth the baby gets antibodies from the mother through breast milk. This is natural passive acquired immunity.
Which of the following is the best definition of an unsaturated fatty acid? 8 A. A basic unit of a lipid that consists of single and double carbon-to- carbon bonds B. A compound that carries hereditary information C. An insoluble compound made up of glycerol and three fatty acids D. A basic unit of a lipid that consists of only single carbon-to-carbon bonds
Answers
In adult circumcision, a ________ incision is made in the skin and carried circumferentially.
Answers
During adult circumcision, a dorsal incision is made in the skin of an individual and carried circumferentially.
What is circumcision?Circumcision can be defined as a surgical procedure that involves a removal of the foreskin from the pe-nis (genital) of a male organism, especially at infant stage.
Based on medical information, a dorsal incision is made in the skin of an individual and carried circumferentially during the removal of the foreskin from the pe-nis (genital) of an adult (adult circumcision).
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‼️URGENT‼️
I really need help with this one problem
Answers
Answer:
C.
Explanation:
A. This makes no sense because the chart is only about the number of fish not about the number of plants that have grown
B. Makes no sense???
C. This is correct because it provides a reason why the number of fish in the stream next to the orchard have decreased
D. Makes no sense as well
Which represents a negative impact of technology?
A. Accessible technology
B. Production of waste
C. Improvement in climate
D. Access to more resources
Answers
Answer:
B
because it is harmful
A comparison that does not use "like" or " as" is known as ...
hyperbole
onomatopoeia
metaphor
simile
Answers
Answer:
Metaphor is the answer.
Hyperbole: A hyperbole is an extreme exaggeration in which something seems more drastic than it is. An example would be as follows, “ I am so hungry I could eat the entire house right now!” This is a hyperbole because the person mentioned is trying to emphasize the fact they’re really hungry. I’m reality, the person cannot eat an entire house which makes this an exaggeration.
Onomatopoeia: Onomatopoeia is an instance used where events or objects are imitated by real sounds to add expression and realism to what is happening. An example of onomatopoeia would be as follows, “ The fireworks were crazy last night! I could not sleep because of the boom it made outside of my house!” This is an example of onomatopoeia because fireworks imitate the sounds of real explosives, as if they are going off or being detonated.
Metaphor: A metaphor is a comparison between two or more objects that does not use “like” or “as” and rhetorically refers one thing to another. An example of a metaphor would be as follows, “ I am feeling blue today.” This is a metaphor because “like” and “as” are both unused, and blue refers to somebody feeling sad. The person physically cannot feel the color blue, which makes this a metaphor.
Simile: A simile is a phrase that, using “like” or “as,” compares two or more events. An example of a simile would be as follows, “ That student behaves as poorly as a patch of non-genetically modified oranges.” This is a simile because using “as,” a misbehaving student is compared to a patch of non-genetically modified oranges.
Your final answer: A metaphor. If you need to better understand it, let me know and I will gladly assist you!
Ozone consists of _______ molecules of oxygen, is found primarily in the ______ and protects us from ______
Answers
The blank spaces in the task content should be filled with is; Three(3), atmosphere and ultraviolet rays of the sun.
What is Ozone?Ozone is a trioxygen molecule; contained in the upper atmosphere with a sole aim of protecting biological life against ultraviolet rays of the sun. The ozone layer is however depleted to Oxygen molecule in the lower atmosphere.
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What are the main functions of red blood cells ?
Answers
Answer:
carrying oxygen
What are the two types of hypotheses used in a hypothesis test? how are they related?.
Answers
Answer:
the null hypothesis and the alternative hypothesis.
Explanation:
null contains a statement of equality (greather than or equal to, less than or equal to, equal to) and the alternative is the complement of the null hypothesis statement that must be true if H0 is false and it contains a statement of strict inequality (greater than, less than, not equal to)
How many pressure points are in your arm?- don't answer if you don't want notifications-
Answers
Answer:
In acupressure, pressure points are thought to be powerfully sensitive parts of the body. Some people believe that by applying pressure to our body’s pressure points, it can help relieve pain, establish balance, and improve health throughout the body.
Explanation:
Which of these statements is NOT true of the phylogenetic tree?
Answers
The statement that says that the phylogenetic tree ranks organisms by importance in evolutionary history is false.
A phylogenetic tree is a branching diagram which shows how an organism is linked to its ancestorsIt depicts the relationship between various organisms who may have shared a common ancestorUsing a phylogenetic tree, we can are better able to pinpoint when and how a new species has evolvedIt shows how evolution has occurredWe have to keep in mind that phylogenetic trees are not always accurate, they are a form of hypothesesA phylogenetic tree does not rank organisms by their significance in evolutionary history.
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Your question was incomplete. Please check below the full content.
Which of these statements is NOT true of the phylogenetic tree?
A.It ranks organisms by importance in evolutionary history.
B.It depicts an organism's lineage as it changes over time
C.It shows successive events of speciation in which one species gives rise to two.
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What kind of calls are usually smaller and found in simpler forms of life
