Explain some of the processes involved in a scientific investigation.
Answers
Answer:
The steps involves making hypothesis, deriving predictions from the logical consequences and then carrying out experiments based on those predictions.
Explanation:
Step 1: make a observation .
Step 2: Formulate a statement or question.
Step 3: Form the hypothesis .
Step 4: make a prediction based on the hypothesis.
Step 5: test the hypothesis whether its true or not.
Step 6: use the results to conclude the experiment.
Answer:
Steps of a scientific investigation include identifying a research question or problem, forming a hypothesis, gathering evidence, analyzing evidence, deciding whether the evidence supports the hypothesis, drawing conclusions, and communicating the results
Explanation:
Related Questions
Which of the following statements about biodiversity is TRUE?
Available answers:
More biodiversity → Less chance for an ecosystem to sustain itself
More biodiversity → Better chance for an ecosystem to sustain itself
More biodiversity → Less species in an ecosystem
More biodiversity → More pollution in an ecosystem
Answers
Answer:
more bio diversity Better chance for an ecosystem to sustain
If a plant cell completes the cell cycle in 24 hours, how many plants cells will be produced in a week?
(With explanation)
Answers
Answer:
The correct answer is 128 cells
Explanation:
The explanation is in the picture there
What are the products of photosynthesis?
What is a photon?
Why are plants green?
Two parts of the chloroplast.
Answers
1. The products of photosynthesis are oxygen and glucose.
2. A photon is a particle of light.
3. Plants are green because of a pigment called chlorophyll, which is found in the chloroplasts of plant cells.
4. The two parts of the chloroplast are the thylakoid and the stroma.
Photosynthesis is the process by which plants, algae, and certain bacteria convert the energy from sunlight into chemical energy in the form of glucose, which is a type of sugar. The equation for photosynthesis is 6CO2 + 6H2O + light energy → C6H12O6 + 6O2.
Photon is the basic unit of all forms of electromagnetic radiation, including visible light, radio waves, and X-rays. Photons are responsible for carrying the energy of light, which is why they are so important in the process of photosynthesis.
Chlorophyll absorbs light energy from the sun and uses it to power the process of photosynthesis. Because chlorophyll absorbs red and blue light very efficiently, but reflects green light, plants appear green to our eyes.
The thylakoid is a flattened, membrane-bound sac that contains chlorophyll and other pigments. It is the site of the light-dependent reactions of photosynthesis. The stroma is the fluid-filled space that surrounds the thylakoids. It is the site of the light-independent reactions of photosynthesis, also known as the Calvin cycle.
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In which of the following aspects of the cell cycle is Sulfolobus similar to eukaryotes?
1- There is an extended G2 phase before segregation of the daughter chromosomes.
2- Replication of a single linear chromosome
3- Cytokinesis using proteins in the ESCRT family
4- Segregation using proteins in the ESCRT family
5- Conserved replicative DNA polymerases
Answers
Sulfolobus is an archaeon, a type of prokaryotic organism, and it differs from eukaryotes in many aspects of the cell cycle. However, Sulfolobus is similar to eukaryotes in one aspect of the cell cycle, which is:
3- Cytokinesis using proteins in the ESCRT family
Cytokinesis is the final stage of the cell cycle, during which the cytoplasm is divided and the cell is split into two daughter cells.
In eukaryotes, cytokinesis is achieved by the formation of a contractile ring made of actin and myosin filaments, which pinches the cell membrane and divides the cell.
In contrast, bacteria and archaea typically use a protein complex called the Z-ring to divide the cell.
However, recent studies have shown that Sulfolobus, like some eukaryotes, uses proteins in the endosomal sorting complexes required for transport (ESCRT) family for cytokinesis.
This protein complex has been well-characterized in eukaryotes and is involved in membrane remodeling and fission events, including cytokinesis.
The presence of ESCRT proteins in Sulfolobus suggests that this archaeon may have evolved a eukaryote-like mechanism for cytokinesis.
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Which experiment would most likely contain experimental bias?
A.
A student tests the attraction of bees to flowers by placing four different flowers in the same location and counting how many bees visit each.
B.
A chemistry class performs an experiment in which each reaction has the same amount of starting material and begins at the same temperature.
C.
A lab performs a test by giving bacterial colonies the same amount of different antibiotics and growing them under the same conditions.
D.
A company that makes pain relief medication tests the effectiveness of their own medicine compared to that of three other brands.
Answers
The experiment which would most likely contain experimental bias is a company that makes pain relief medication tests the effectiveness of their own medicine compared to that of three other brands which is therefore denoted as option D.
What is an Experiment?This is referred to as a procedure which is usually carried out in the laboratory and it is used to support or refute a hypothesis.
Experimental bias on the other hand is the tendency of a scientist or researcher to introduce bias into an experiment through unconsciously affecting the results, data etc. This is because they would want to get values which would show that their drugs are more effective and suitable for use so as to promote more sales and is the reason why some form of bias may be introduced into the findings which was why it was chosen as the correct choice.
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What are five 5 reasons why premarital sex is strongly discouraged?.
Answers
Premarital sex is Selfish Premarital sex is not romantic, Out of Curiosity, No parental guidance, Canine Love.
Premarital sex is always about the individual, never about the other. If it were, we wouldn't be putting our future marriage, the other person's health, their ability to become pregnant, the spread of illness, their emotional welfare, and their spiritual wellbeing at danger. When pre-marital sex occurs, it is always about me and only me.Love can be summed up in the term "gift" since it is "choosing what is best for the other, notwithstanding the cost to myself." Being a selfless gift for others is how we are called to love them. Therefore, it is not love when we make decisions that are selfish and bad for the other. By definition, premarital sex is ALWAYS an unloving act.Young people frequently begin having premarital sex out of curiosity. Without considering the potential results, they just want to have fun and fall in love at the same time. The majority of teenagers are naturally interested, especially during the adolescent years.Premarital sex is always a possibility for teenagers who are not as closely watched by their parents. Teenagers would have plenty of time to experiment with and practice premarital sex if both parents were employed full-time and there was no one else at home. When they get into marriage phase they will be guided by parents.Teenagers in general have a tendency to think and mature quickly. Teenagers believe they have developed and met their true love throughout adolescence because it is the period between childhood and adulthood then marriage. the person they want to spend their entire lives with. However, the issue typically starts at this point because the majority of teenagers don't engage in safe sex and have a propensity to become pregnant at a young age.To know more about premarital sex check the below link:
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3. Sunflowers are beautiful flowers that can grow to be up to 12 feet tall.
Which part of the cell theory best explains how such a tall plant could
grow from such a tiny sunflower seed?
Answers
In organisms all cells are formed from pre- basic unit of life of the existing cells.
Cell theory tells about all living organisms originated from of basic units called cells. The unified cell theory states that all living things are composed of one or more cells the cell is the basic unit of life and new cells arise from existing cells.
The process by which information passes is as follows firstly, DNA is passed between cells during cell division. secondly, cells of all organisms between the similar species are same, both structurally and chemically; and finally, energy flow takes place within Cells that provide the basic units of functionality .
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Choose the answer below that has the HIGHEST chance of becoming a fossil. * O A jellyfish in the ocean. O A fern growing in a swamp. O Dinosaur tracks in snow. O A rabbit killed by a fox in the woods.
Answers
Answer:
A rabbit killed by a fox in the woods
Explanation:
A fossil is the preserved remains or traces of a dead organism. The process by which a fossil is formed is called fossilisation. After an animal dies, the soft parts of its body decompose leaving the hard parts, like the skeleton, behind. This becomes buried by small particles of rock called sediment.
Which of the following materials is the least porous?
1. loosely packed gravel 2.sorted sand and rock 3.unsorted sand and rock 4.large pebbles and boulders
Answers
Answer:
3.unsorted sand and rock
my answer, but I'm sorry if I'm wrong
an ecological pyramid is a represnetion of the distribuiton of organim in an ecosystme based on their trophic levle. what level has the greatet nubmer of organism and the greatest biomass in terrestrial ecosystems and most aquatic ecosystems
Answers
Description. An energy pyramid, also known as a trophic or ecological pyramid, is a graphical depiction of the energy found within the trophic layers of an ecosystem.
The bottom and greatest level of the pyramid is the producers and contains the highest quantity of energy.
A biomass pyramid is the depiction of total live biomass or organic matter present at different trophic levels in an ecosystem.
Biomass is estimated as the mass of live creatures present at each trophic level in a given sample size. Calories per unit area or dry weight in grams are two ways to see it.
graphical illustration of an ecological pyramid, also known as a trophic pyramid, Estonian pyramid, energy pyramid, or occasionally a food pyramid, is used to illustrate the biomass or bio-productivity at each trophic level in a particular ecosystem
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Hypertrichosis is a genetic mutation, based on the DNA from Danny and his normal brother, what type of mutation do you think that Danny has? Explain why you think so.
Answers
Answer and Explanation:
Hypertrichosis is an abnormal hair growth over the body. There are two types of hypertrichosis, such as localized hypertrichosis and generalized hypertrichosis. Localized hypertrichosis is limited to a particular area, while generalized hypertrichosis arises over the whole body. Hypertrichosis is also called Werewolf syndrome. It could be caused by spontaneous genetic mutation or pancreatic reversal mutation of the q22 band of chromosomes 8. Danny’s brother is normal, but he has hypertrichosis. I think Danny has a spontaneous genetic mutation. Hypertrichosis may be caused by the consumption of numerous medicines, such as phenytoin, streptomycin, psoralen, minoxidil, diazoxide, and cyclosporine. There is no permanent cure for hypertrichosis. Numerous methods are used to remove hairs, but temporary removal may last for various weeks or various hours. These methods include shaving, trimming, depilatories, waxing, threading, electrology, sugaring and plucking. Hirsutism and acquired hypertrichosis are related to each other. Hirsutism takes place in approximately 10% women.
what is the name of the procedure that is performed to assess the intraocular pressure of the eye?
Answers
The procedure performed to assess the intraocular pressure of the eye is called tonometry.
Tonometry measures the pressure inside the eye, which is known as intraocular pressure (IOP).
This measurement is crucial in evaluating and diagnosing conditions such as glaucoma, a group of eye diseases characterized by increased IOP that can lead to optic nerve damage and vision loss. There are different methods of tonometry, including the most common method called applanation tonometry, where a device gently touches the cornea to measure the pressure.
Other methods include non-contact tonometry, handheld tonometry, and digital tonometry. It's important to consult with an eye care professional for a proper assessment of your eye health.
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There is an average of ______ inches of rainfall a year.
Answers
Answer:
39 Inches
Explanation:
This depends on what loctation you are talking about, but globally the world recives over 39 inches. Of course this is distubuted unevenly.
The study shows that sleeping more hours will make people happier? What principle of science does your answer prove, and what is one reason this principle is true?
Answers
In experiments on sleep debt, researchers pay healthy volunteers to stay in bed for at least 14 hours a day for a week or more.
What is sleep debt?Studies show that it can take up to four days to recover from one hour of sleep debt and up to nine days to eliminate the sleep debt. When you fully recover from your sleep debt, your body returns to baseline and reduces the risks associated with sleep deprivation.If you don't get enough sleep for days on end, your sleep debt builds up day by day. for example: A person who needs eight hours of sleep but he sleeps only six hours accumulates a sleep debt of two hours for the day. If someone who needs 8 hours of sleep she does 6 hours a day, 5 days in a row, she will be 10 hours sleep deprived.The most common cause of drowsiness is not getting enough sleep. Getting enough sleep is very important for staying healthy. Research over the past decade has shown that a good night's sleep is just as important as regular exercise and a healthy diet.To learn more about sleep debt from the given link:
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Happiness is greatly increased by high-quality sleep, which is why it should be emphasized as a public health value.
What is the science of sleep?
Studies show that sleep is very intricate and has an impact on almost every bodily system.The mechanisms of generating the hormones and chemicals that control wakefulness and sleep include several areas of the brain.Even though there is still much to learn about the intricate mechanics of sleep, current research provides insight into the processes that take place in the brain and body while we sleep. This knowledge offers insights into how people can get better sleep and demonstrates how sleep is connected to numerous aspects of physical, emotional, and mental health.The brain and body begin to change noticeably a minute after falling asleep Heart rate and respiration slow down, body temperature declines, and brain activity decreases. It should come as no surprise that the body uses less energy during sleeping.But it's crucial to understand that sleep is a dynamic process. You actually go through a number of sleep cycles in a single night, each of which has a duration of between 70 and 120 minutes and is made up of several stages of sleep. These sleep stages form the basis of how sleep functions.What do studies on sleep say?
According to research, sleep aids learning and memory in two different ways. First off, being sleep deprived makes it difficult to concentrate attention and hinders learning. Second, sleep itself plays a part in memory consolidation, which is crucial for picking up new knowledge.Hence sleep makes you more happier.
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The entire collection of genes within human cells is referred to as the _____________________________.
A. Transgenic organism
B. Human genome
Answers
define graph in earth science
Answers
Answer:
A graph in earth science is a picture that represents data or specific sets of data in a helpful way.
What would cause a change in the phenotype of the offspring that was NOT present in the parent?
Answers
Answer:
Genes come in different varieties, called alleles. Somatic cells contain two alleles for every gene, with one allele provided by each parent of an organism. Often, it is impossible to determine which two alleles of a gene are present within an organism's chromosomes based solely on the outward appearance of that organism. However, an allele that is hidden, or not expressed by an organism, can still be passed on to that organism's offspring and expressed in a later generation.
Which is true about fossils and rocks found in the same layer(strata)?
A.) They are made of the same minerals.
B.) They have the same color and texture.
C.) They are relatively the same age.
D.) None of the above.
Answers
Answer:
B.) They have the same color and texture.
How do an increase in the organic matter in soil and an increase in soil depth affect the
population of plants in an area?
A Larger plants become the dominant organisms.
B Mosses replace flowering plants.
C Nitrogen-fixing bacteria kill young trees.
D Grasses become diseased.
Answers
An increase in the organic matter in soil and an increase in soil depth generally have a positive effect on the population of plants in an area.
Organic matter in soil provides essential nutrients and improves soil structure, while a deeper soil profile can increase the availability of water and nutrients.
As a result, larger plants with deep roots tend to thrive in such conditions, which may eventually lead to larger plants becoming dominant organisms (option A). This is because larger plants have a competitive advantage over smaller plants in acquiring nutrients and water from the soil.
Mosses replacing flowering plants (option B) is less likely, as mosses tend to grow in areas with poor soil conditions and lower nutrient levels.
Nitrogen-fixing bacteria killing young trees (option C) is also unlikely as nitrogen-fixing bacteria actually help plants by providing them with essential nutrients.
Grasses becoming diseased (option D) is also not a likely outcome as the increased organic matter and soil depth generally improve soil health and reduce the incidence of diseases.
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An increase in organic matter and soil depth in soil results in Larger plants becoming the dominant organisms by providing essential nutrients to the soil.
Which are the components of organic matter?
Organic matter is composed of microorganisms, plant remains, humus, hydrogen, nitrogen, etc.
Which nutrients are essential for the growth of a plant?
The nutrients necessary for the growth of the plant can be categorized into two types macronutrients such as nitrogen, and phosphorous, and micronutrients such as chlorine and manganese.
Organic matter provides the soil with the necessary nutrients which are essential for the growth of plants. Larger plants have large roots hence soil depth helps them to grow fast.
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Why do we need homeostasis
Biology
Answers
Answer:
You need homeostasis to survive. Homeostasis is what warms up your body when your body's core temperature lessens. It also cools you down when you are very hot. For example, when you are very hot your body will release sweat particles to cool you down. Without homeostasis you would suffer from hypothermia or heat stroke at a higher probability.
Explanation:
Question 14 (2 points) The process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called natural selection. O mutation. genetic drift. migration.
Answers
The process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called a mutation.
A mutation is a sudden and lasting alteration in the DNA sequence that can influence genetic variation. Changes in the DNA sequence can influence phenotype, which may or may not have an effect on an organism's fitness. Mutations occur spontaneously, either from errors in DNA replication or from exposure to mutagenic agents. Mutations may happen in either coding or non-coding regions of the DNA, and they can be either silent or expressed.
Evolution is a natural process that results in the gradual change of inherited characteristics in populations over generations. It is the process of alteration in the inherited characteristics of species over successive generations. In other words, it is the process of gradual changes that happen to species over time as they adapt to their environments. It can be defined as a change in the gene frequency in a population over time.
Types of Evolution 1. Natural Selection 2. Genetic Drift 3. Gene Flow 4. Mutation 5. Non-Random Mating 6. Admixture 7. Mutation Pressure 8. Genetic Draft 9. Bottleneck and Founder Effect 10. Sexual Selection the process of evolution that involves a change in the DNA sequence that leads to evolutionary change is called a mutation.
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Which two body systems are interacting in the diagram?
Answers
Answer:
Where is the diagram pls?
PLz help ASAP
tell me if this is correct or not if it isn't then plz do tell me what I need to change it to
Answers
Homeostasis is the ability of an organism to maintain a relatively stable internal environment. How would an organism's homeostasis be affected if it was not able to produce enzymes?
Answers
If an organism is not able to produce enzymes, its homeostasis would be significantly affected as enzymes play a crucial role in regulating biochemical reactions and maintaining the internal balance of the organism's body systems.
Enzymes are proteins that facilitate chemical reactions and regulate metabolic pathways in living organisms. They are essential for maintaining homeostasis in an organism. If an organism is unable to produce enzymes, its ability to maintain homeostasis will be affected. This is because enzymes are involved in many biological processes such as digestion, respiration, and synthesis of important molecules like proteins, fats, and nucleic acids.
Enzymes play a key role in digestion by breaking down complex food molecules into simpler molecules that can be absorbed by the body. Without enzymes, food would not be properly digested, and the body would not be able to extract the necessary nutrients from it.
This would lead to malnutrition and a host of other health problems. Enzymes are also involved in respiration, which is the process by which living organisms convert glucose into energy. If an organism is unable to produce enzymes, it would not be able to respire properly, and energy production would be severely compromised.
Finally, enzymes are involved in the synthesis of proteins, fats, and nucleic acids. Without enzymes, the body would not be able to make these essential molecules, which are required for growth and repair. Therefore, an organism's homeostasis would be severely affected if it was not able to produce enzymes.
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Where in an organism will mitosis take place
Answers
Which of the following correctly lists animals in order of increasing complexity?
A. Diploblast, triploblast with complete coelom, triploblast with incomplete coelom.
B. Triploblast with coelom, triploblast with no coelom, diploblast with coelom.
C. Diploblast, triploblast with incomplete coelom, triploblast with complete coelom.
D. Diploblast with coelom, triploblast, triploblast with coelom.
Answers
Diploblastic and triploblastic embryos.
During embryogenesis, diploblasts develop two embryonic germ layers: an ectoderm and an endoderm or mesendoderm. Triploblasts develop a third layer—the mesoderm—which arises from mesendoderm and resides between the endoderm and ectoderm.
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During anaphase, a free kinetochore formed by disrupting an attached spindle fiber results in an immediate block to the process. This result shows that:
Answers
During anaphase of cell division, a free kinetochore formed by disrupting an attached spindle fiber results in an immediate block to the process. This result shows that the kinetochores play a critical role in the separation of sister chromatids during cell division.
The kinetochore is a protein structure located at the centromere of each chromosome, which attaches the chromosome to the spindle fibers and helps to align and separate the sister chromatids. When the attachment of the spindle fiber to the kinetochore is disrupted, the separation of the sister chromatids is blocked because the spindle fibers are responsible for pulling the sister chromatids apart. The disruption of spindle fiber attachment to the kinetochore can occur due to the loss of tension on the spindle fibers or the detachment of the kinetochore from the spindle fiber.
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Jorge is studying a pond ecosystem in his neighborhood. The pond is home to a variety of plant and animal species, as well as a stop for birds that migrate through the region.
One summer, heavy rains wash an unusual amount of fertilizer into the pond. Jorge observes the algae population growing rapidly, and quickly algae cover the pond's surface. Several weeks later, many fish and other animals die in the pond. However, within two years, the algae population has returned to its previous size, as have the populations of all the ecosystem members.
Jorge's observations provide the strongest evidence for which of the following conclusions about the pond?
A. The pond ecosystem has very high biodiversity that protects it from invasive species.
B. The pond ecosystem is resilient to changes in many abiotic and biotic factors.
C. The pond ecosystem can withstand only certain levels of algal growth.
D. The pond ecosystem may change over time, but its species will continue living there indefinitely.
Answers
Answer:
I think that the answer is C.
Explanation:
If the levels of algae were too high then it would be the reason as to why the fish died. When the algae went back to normal,the fish were able to live there again.
I hope that helps!
Answer:
C.The pond ecosystem can withstand only certain levels of algal growth.
Explanation:
certain biologists are currently investigating the role played by spindle fibers in chromosomes movement toward the poles. Check your text for the discussion of one hypothesis, and briefly summarize it.
Answers
The role played by spindle fibers in chromosome movement toward the poles is that certain biologists are investigating the hypothesis that the spindle fibers actively move the chromosomes by exerting force on them.
This hypothesis is based on the observation that spindle fibers are organized in a specific way during cell division and that they are connected to the chromosomes at specific locations called kinetochores.
The explanation behind this hypothesis is that the spindle fibers are composed of microtubules, which are protein structures that can grow and shrink in length. During cell division, the spindle fibers attach to the chromosomes at the kinetochores and then begin to exert force on them by growing or shrinking in length. This force causes the chromosomes to move toward the poles of the cell, where they will eventually be separated into two daughter cells.
While this hypothesis is still being investigated, it has the potential to provide new insights into the complex process of cell division and could lead to the development of new treatments for diseases that involve abnormal cell division, such as cancer.
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of the following actions, which would be the most beneficial in stopping the dead zones from reappearing in the Gulf of Mexico in the future? Restore inland and coastal wetland areas that have been destroyed or degraded In the Mississippi River Basin, use fertilizers on steeply sloped land Develop new standards for each step in the offshore drilling process
Answers
The most beneficial action to stop the dead zones from reappearing in the Gulf of Mexico in the future would be to restore inland and coastal wetland areas that have been destroyed or degraded (option A).
Deаd zones аre аreаs of wаter where oxygen levels аre so low thаt mаrine life cаnnot survive. They аre cаused by аn excess of nutrients, such аs nitrogen аnd phosphorus, which come from аgriculturаl runoff аnd other sources. These nutrients stimulаte the growth of аlgаe, which then die аnd decompose, consuming oxygen in the process. By restoring wetlаnd аreаs, the excess nutrients cаn be аbsorbed, preventing them from reаching the Gulf of Mexico аnd contributing to the formаtion of deаd zones.
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