During an experiment, the researcher asks a question that can be tested to answer it. The researcher makes a hypothesis to explain what is expected to occur, and what is the relationship between variables.
Note: Since I could not find the complete question, I will provide definitions of the exposed terminology as a guide for you to find the answers.
What are testable question, hypothesis, and variables?Testable questions are the questions the researcher makes before conducting an experiment, and for which there is no answer yet.
It is a question the investigator can test to find its answer.
The hypothesis is a prediction the researcher makes as a potential explanation of what is going on or what is expected to occur. It expresses a direct relationship between the involved variables.
There are three types of variables in an experiment,
Independent variables are the ones that affect or influence other variables. The researcher modifies these variables on purpose to observe the changes they produce in other variables. Dependent variables are the ones affected by all the changes in the independent variables. They also change as the independent variable is modified. Controlled variables are all the other variables in which the researcher is not interested. They must be controlled and kept constant because they might affect the results.You can learn more about testable questions, hypothesis, and variables at
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A school’s cafeteria kitchen has a large, walk-in refrigerator where food is stored for lunch later in the week. Which cell organelle has a function that is similar to the refrigerator?.
Vacuoles function similar to the refrigerator.
A membrane-bound cell organelle known as a vacuole. Animal cells typically have tiny vacuoles that aid in the sequestration of waste. Vacuoles in plant cells aid in preserving the equilibrium of water. A single vacuole may occasionally occupy the majority of a plant cell's inner volume.In biology, a vacuole is an area of a cell that is devoid of cytoplasm, membrane-lined, and filled with fluid. Vacuoles are crucial cytoplasmic organs (organelles), particularly in protozoa (single-celled eukaryotic creatures), carrying out tasks such water storage, intake, digesting, excretion, and expulsion. Plant cells frequently have big core vacuoles, which allow them to grow large without acquiring the mass that would make metabolism challenging.Plants, fungi, algae, and certain other species also store potent secondary compounds in their vacuoles to shield the cell from self-toxicity, such as tannins or other biological colors.Therefore, the correct answer is vacuoles.
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A human male with the chromosome constitution of xxxyy would contain how many barr bodies in his somatic cells? 0 2 3 1 4
The Barr body (named after its discoverer, Murray Barr) or X chromatin, contains multiple X chromosomes that are transformed in a process called lyonization in species with XY sex determination (including humans).
Inactive X chromosome in cells with The Lyon hypothesis states that in cells with multiple X chromosomes, all but one are inactivated during mammalian embryogenesis. This happens by chance early in mammalian embryonic development , but in some extraembryonic mammals in marsupials and some placental mammals where the sperm X chromosome is always inactivated. Excluding tissue. , XX) has one Barr body per somatic nucleus, whereas genotype male (46, XY) has none. Barr bodies can be seen in interphase nuclei as dark blobs in contact with the nuclear envelope. Barr bodies are found in neutrophils at the edge of the nucleus.
In a person with multiple X chromosomes, the number of Barr bodies visible at interphase is always one less than her total number of X chromosomes. For example, people with Klinefelter syndrome (47,XXX) have one Barr body, and people with a karyotype of 47,XXX have two Barr bodies.
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How will changes in arterial PO2 impact ventilation?
The minute ventilation increases as PaO2 decreases. Regarding PaCO2, it is mediated over a few seconds by peripheral chemoreceptors. arterial oxygenation, unlike PaCO2, has little impact on cerebral chemoreceptors.
What clinical importance does PO2 have?The partial pressure of oxygen, or PO2, measures how much dissolved oxygen gas is present in the blood. It essentially assesses how well the lungs are able to draw oxygen from the air into the bloodstream. Increased pO2 levels are related to: increased oxygen content of the air being breathed.
The patient is well oxygenated if pO2 and SaO2 values are normal or slightly increased; To identify whether acidosis or alkalosis is present, take note of the pH level. A pH of 7.35 and a pH of >7.45 suggest acidosis and alkalosis, respectively.
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What is the greatest threat to plant diversity?
a. insects
b. competition with other plants
c. pathogenic fungi
d. grazing and browsing by animals
e. human population growth
Answer:C
Explanation:
suggest reasons for and against women in their 50s and 60s having ivf treatment (3 marks)
Three reasons for women in their 50s and 60s having IVF treatment are:
IVF has proven to be a successful method of assisted reproductive technologyIVF treatment has been used to treat fertility issuesIVF treatment can help women of all ages to have their own babiesThe reasons against women in their 50s and 60s having IVF treatment include:
IVF treatments may have some side effectsPossibility of ectopic pregnancy occurringRisk of premature birthsWhat is IVF?IVF is the acronym for in-vitro fertilization.
In-vitro fertilization is the fertilization procedure in which the egg or oocyte of a women is taken from the ovaries and fertilized with the sperm outside the body in a laboratory.
The process of in-vitro fertilization has helped couples with fertility issue to have their own babies. Even older women who in their 50s and 60s have been able to successfully conceive and give birth by means of IVF treatment.
The reasons for women in their 50s and 60s having IVF treatment include:
IVF has proven to be a successful method of assisted reproductive technologyIVF treatment has been used to diagnose and treat fertility issuesIVF treatment can help women of all ages to have their own babiesThe reasons against women in their 50s and 60s having IVF treatment include:
IVF treatments may have some side effects and risksThere is a possibility of ectopic pregnancy occurringThere is the risk of premature birthsLearn more about in-vitro fertilization at: https://brainly.com/question/1853744
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Which structures are in the cytoplasm? select five options. cell membrane chloroplasts endoplasmic reticulum lysosomes cell wall nucleus vacuoles
The structures present in the cytoplasm are chloroplasts, endoplasmic reticulum, lysosomes, nucleus, vacuoles.
What is cytoplasm?Cytoplasm is the gelatinous liquid that fills the inside of a cell. It is composed of water, salts, and various organic molecules. Some intracellular organelles, such the nucleus and mitochondria, are enclosed by membranes that separate them from the cytoplasm.
Moreover, it provides a platform upon which other organelles can operate within the cell. All of the functions for cell expansion, growth and replication are carried out in the cytoplasm of a cell.
Therefore, the main components of the cytoplasm are cytosol, the organelles and various cytoplasmic inclusions. The cytoplasm is about 80% water and is usually colorless.
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The serous membrane is a double-layered membrane created by two separate membranes. True or false?.
Which term matches this definition?
double membrane that surrounds the nucleus
that protects the cell's genetic material from
the rest of the cell
A. nuclear envelope
B. nuclear pores
C. nucleolus
D. nucleus
Answer:
nucleolus us the answer it is where chromosomes are present
Answer: nuclear envelope
Explanation:
A highly witty play filled with double meanings is meant to appeal to an audience that is? dionysian. bi-polar figuratist literalist. easily confused.
A highly witty play filled with double meanings is meant to appeal to the figuratist' audience.
The figuratist is a critical thinker who employs language in novel, frequently humorous, and vivid ways. Because word games and double meanings sometimes have comedic effects, this type of play would be appealing to an audience who likes them. The multiple meanings frequently cause a misunderstanding, which has a hilarious impact.Whereas a literalist, who takes things literally, is the antithesis of a figuratist. The source from which the information was heard would determine the literal reaction, and the response would be in line with the facts and/or viewpoints of the source. A figuratist is someone who uses various images, is open-minded, and has views that incorporate their own ideas.
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HELP ASPPP ILL GIVE BRAINILEST AND 20 points and if someone puts bunch of letters I will report
Answer:
3,4,7
Explanation:
Elements present in a group has the same valence.
Elements present in a group has identical chemical properties but vary in physical properties.
The vertical column of elements on groups are numbered 1-8
Why were t. brucei cells incubated with hydroxyurea overnight and washed afterward?
To ensure that most cells were in the same phase of the cell cycle at each time point measured.
What is the drug hydroxyurea used for?Chronic myeloid leukemia (CML), a malignancy of the white blood cells, is treated with hydroxyurea . For head and neck cancer, it may also be administered in conjunction with radiation therapy (advanced squamous cell cancer). Cancerous cells are prevented from growing as a result of hydroxyurea, and the body gradually eliminates them. A chemotherapy treatment called hydroxyurea (also known as hydroxy carbamate, Hydrea) has extended the lives of certain CMML patients. This medication is a capsule that needs to be swallowed every day. It can restore normal levels of monocytes and white blood cells. It might also aid in spleen enlargement reduction. For more than 20 years, hydroxyurea has been administered safely by several sickle cell disease patients. Children of all ages can handle it.To learn more about hydroxyurea, refer to:
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If a meal contains 20 g of protein, how many calories will you consume from protein?
Each meal would need to provide 80 calories, or 20 grams, of protein for that person.
Finding out how many portions you divided the dish into and multiplying the total calories by that number is the best method for estimating the number of calories in a single serving. Add that to the quantity of the dishes you consumed. If the calorie count is given in grams of protein rather than calories, multiply the amount of grams of protein by 4 to get the calorie count. Protein has four calories per gram. A serving of food with 6 grams of protein has 24 calories from protein.Learn more about the calorie counting with the help of the given link:
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Chemical digestion of food starts in the __________. chemical digestion of food starts in the __________.
a. small intestine
b. stomach
c. mouth
d. large intestine
Answer:
Chemical digestion of food starts in the mouth.
Explanation:
This begins with saliva. This saliva acts as a digestive juice so the food can move more easily through the esophagus into the stomach. Also, saliva has an enzyme that begins to break starches in the food. Hope this helped :)
Which of the following helps in maintaining temperature homeostasis?
Sebaceous glands help in maintaining temperature homeostasis.
Sweat and sebum are both produced by the sebaceous glands. Each of these liquids serves a purpose in preserving equilibrium. Sweating helps the body expel minute amounts of metabolic waste while cooling the skin when it becomes hot.
Sebaceous glands are tiny oil-producing glands found in mammal skin. Typically linked to hair follicles, sebaceous glands secrete a fatty substance called sebum into the follicular duct, which subsequently travels to the skin's surface. With the exception of the palms of the hands and the soles of the feet, the glands are found all over the body, but they are most prevalent on the scalp and face.
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1) Give an example of diffusion in
plant and animal cell and explain the process (oxygen from lungs to
blood).
The best example of diffusion in plants is the transport of carbon dioxide and oxygen through the stomata. In Animals glucose and oxygen are necessary for the normal functioning of cells, therefore these substance reaches the cells through the blood and diffuses out from the blood into the cells.
How does oxygen from the lungs get into the bloodstream?The lungs have tiny sac-like structures known as alveoli at the end of each bronchiole. Alveoli is the point where the gas exchange takes place, oxygen is delivered to the lungs and the carbon dioxide is eliminated from the bloodstream to the lungs and out of the body.
The alveoli contain the network of capillaries that allow the diffusion of oxygen from the lungs to the bloodstream and travel to the heart. And simultaneously allows carbon dioxide to diffuse out. This gas exchange takes place from the region of higher concentration to lower concentration.
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PLEASE HELP!!!!!!!!! Choose the items that are Descriptive Statistics (Check all that apply)
A. Give a measure of statistical significance
B. Include the mean
C. Give the likelihood of data occurring by chance
D. Summarize the data
E. Tell you whether to call your mother about your results
The items that are Descriptive Statistics include both summarizing the data and and include the mean (Option B and D Option are correct).
What is Descriptive Statistics?Descriptive Statistics is a field in statistics aimed at describing different data in a sample and or population based on a summarization of info collected by experimental or observational studies. This field is fundamental in biology and related areas to describe population parameters.
In conclusion, the items that are Descriptive Statistics include both summarizing the data and and include the mean (Option B and D Option are correct).
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What is the most common monosaccharide? why is this monosaccharide so important to our daily fauncitioning?
Glucose is the most common monosaccharide times referred to as dextrose or blood sugar. glucose is classified as a monosaccharide because it can't be broken down by hydrolysis
Glucose is so important to our daily functioning because it is the main source of chemical energy used for cell functions in all organisms. Glucose serves as the primary energy source for humans. And glucose also plays a pivotal role in metabolism. Glucose is also known by the human body as brain fuel and muscle fuel. Without glucose human brain can not be able to work well.The polymer of glucose is known as glucans.The primary form of sugar in the blood, glucose serves as the body's cells' main source of energy. Glucose can be produced by the body from other substances or it can be obtained from the foods we eat. The bloodstream carries glucose to the cells. Insulin is one of many hormones that regulate blood glucose levels.To know more about Glucose visit :https://brainly.com/question/2396657
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Dew Is droplets of water that appear on plants in the morning as a result of water In the atmosphere cooling overnight
and changing into a llquld that clumps together. Dew is an example of_______
Dew Is droplets of water that appear on plants in the morning as a result of water In the atmosphere cooling overnight and changing into a liquid that clumps together. Dew is an example of condensation.
The condensation of water vapors results in dew drops. Hot air contains more water vapors as compared to cold air. The temperature gets cold at night and the hot air comes in contact with a cold surface, condensation happens and dew is formed.
The water papers condense on the cold surface and droplets are formed this condensation continues to happen till early morning.
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Which statement is correct about honey?
Answer:
It contains monosaccharides, the simplest carbohydrate.
Explanation:
This is the best given answer to this question!
Read this sentence from the section "Molecules Make It To Earth."
The experiment took about six days to complete in the lab. It yielded just 100 micrograms of the artificial cometary ice residue.
Which answer choice MOST closely fits the meaning of the word "yielded" above?
condensed
froze
produced
analyzed
The answer choice that most closely fits the meaning of the word "yielded" above is known to be called option C: produced.
What Is the experimental yield?The actual quantity of product a person tends to receive after doing a a specific experiment is known as the experimental yield. The percentage yield is seen as the measurement of how much of the theoretical yield a person actually gets or received in a certain experiment.
Since it is the quantity that is the experimental yield if a reaction is complete and the actual yield of the product is said to be calculated. Hence, The answer choice that most closely fits the meaning of the word "yielded" above is known to be called option C: produced.
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The size of proteins what is the approximate molecular weight of a protein with 682 amino acid residues in a single polypeptide chain?
The Molecular weight of a 682 amino acid-long protein would be around 75kDa.
How can you determine a protein's molecular weight from an amino acid?When the amino acid sequence of a protein is known, we may roughly calculate the protein's molecular weight by multiplying the average molecular weight of the amino acids by the total amount of amino acids that make up the protein. An amino acid's molecular weight is typically 110 Daltons (Da). The total of the products of the number of picomoles of each amino acid multiplied by the associated molecular weight will give you the concentration of peptide or protein in the original sample.Given the number of amino acids that make up a protein, a common method to determine its molecular weight is to multiply that number by the typical weight of a 110Da amino acid.So the MW of a 682aa-long protein would be around 75kDa.
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The photo below shows living and non living things. how would you classify and loving things by domain and kingdom
Living things domains can be classified either as prokaryotes and eukaryotes.
Living things are generally classified into five major kingdoms; which are as follows:
Kingdom MoneraKingdom ProtistsKingdom fungiKingdom PlantaeKingdom AnimaliaThe two domains mentioned above are used to classify living things on the basis presence or absence of nucleus.
The prokaryotes lack true nucleusThe eukaryotes possess true nucleus.What are the characteristics of living things?These are those characteristics or features which makes a living organism. They are:
MovementRespirationNutritionIrritabilityGrowthExcretionDeathAdaptationCompetitionSo therefore, living things domains can be classified either as prokaryotes and eukaryotes. They are classified into the kingdoms monera, protista, fungi, plant and animal kingdom respectively
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What is the name of the covalent bond that joins carbohydrate monomers together?
Answer:
glycosidic linkage / glycosidic bond
A hurricane blows across a caribbean island. the storm flattens trees, drowns or washes away a large number of plants and animals. as a result of the storm, carrying capacity of the island is temporarily reduced for many of the island species
Answer:
The storm is a density-independent limiting factor, because population size and density do not alter the storm's effect
Explanation:
The system parameter that has the potential to significantly alter the output factor is referred to simply as the limiting factor.
The density-independent main limitation could be an earthquake, thunderstorm, flood, or storm. These natural disasters can destroy all animals, regardless of population size.
Whatever the population size, the storm is a density-independent limitation force that will wipe all plants and animals.
As a result, it is a density major limitation since it has an impact on population growth. By reducing the range of animals and plants that are found there, these causes also limit the area's biodiversity.
But over time, the both plant as well as animal populations that survived increase once more and support the formation of a comparable ecosystem in the region.
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In which two organs is food broken down?
Answer: Stomach and small intestine I think
Explanation:
A nurse is providing breast cancer education at a community facility. the american cancer society recommends that women of average risk for breast cancer get mammograms:________
The American Cancer Society recommended that women of moderate breast cancer risk receive mammograms at the age of 40.
Breast cancer definition:Breast cancer can affect both men and women. A lump inside the breast, bloody flow from the nipple, and significant changes in the form or texture of something like the nipple or breast are all symptoms of breast cancer. Treatment is determined by the stage of cancer. It could include chemotherapy, radiation, including surgery.
Is breast cancer treatable?Breast cancer, fortunately, is highly treatable if detected early. Localized cancer (that hasn't gone beyond your breast) is frequently treatable before it spreads. When cancer spreads, treatment becomes more difficult. It can typically keep the condition under control for years.
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A diploid cell with 5 pairs of homologous chromosomes will have how many discrete chromosomes in a germline cell (e.g. egg or sperm) after completing meiosis?
Diploid is a term that refers to the presence of two complete sets of chromosomes within the cells of an organism, with each parent contributing one chromosome to each pair.
Humans are diploid and most somatic cells contain her 23 pairs of chromosomes. However, human gametes (egg and sperm cells) contain a single set of chromosomes and are called haploid. diploid. Diploid cells have two complete sets of chromosomes. Most human cells are diploid and composed of 23 pairs of chromosomes for a total of 46 chromosomes. These are 22 pairs of autosomes and 1 pair of sex chromosomes. One copy of him for each pair of chromosomes comes from an individual's mother and one copy of him from an individual's father. Since we have two copies of each chromosome, he has two copies of each gene. Most mammals are diploid like humans, but some organisms are polyploid and have more than one set of each chromosome.
However, a regular grocery store strawberry is his octaploid, each he has 8 complete sets of 7 chromosomes, for a total of 56 chromosomes.
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You have been asked to do a structural study to understand how increasing cell surface area affects cell size, shape, and function. What cell type would help you most efficiently observe the effects of increasing surface area?.
Answer:
parenchymal cell
Explanation:
it has a spacious environment
Organisms that live in the tundra biomes have developed unique adaptations that aid in their survival. the labrador tea plant is a shrub that grows to be approximately five feet tall. its leaves are used by human residents of the arctic tundra to create both beverages and medicine. the leaves are harvested from each plant individually off the branches throughout the year. how has the labrador tea plant adapted to enable its survival against the cold of the tundra biome? a. shallow roots b. dense hairs c. retention of dead leaves d. low to the ground
Answer: I believe dense hairs since they have fuzz on the underside of their leaves to retain warmth, could also be low to the ground since they are a shrub based on the text given
Explanation:
include activities performed by autotrophs and consumers. *
Biological Processes
O Geological Processes
O Physical and Chemical Processes
O Human Activities
Most autotrophs use a process called photosynthesis to make their food while the heterotrophs do not.
Autotrophs produce food for themselves using photosynthesis, but they also produce enough to sustain other forms of life. These three groups provide all of the food that the majority of other creatures create. Autotrophs are the "producers," starting the food chains that sustain all life. The "Food Chains and Food Webs" idea will cover food chains.
As heterotrophs are unable to produce their own food, they must consume it or absorb it. Heterotrophs are also referred to as consumers because of this. All types of animals, fungi, as well as numerous protists and bacteria, are consumers.
They might eat other heterotrophs, autotrophs, or organic compounds produced by other creatures. The diversity of heterotrophs is enormous, and they can seem far more fascinating than producers.
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