What characteristics must be true of well-stated hypothesis

Answers

Answer 1
A well thought out hypothesis should be testable and falsifiable.

Related Questions

based on the article about drug-resistant bacteria write a paragraph summarizing why this genetic mutation concerned scientists also explain why the scientists say don't panic​

Answers

What is drug resistant bacteria?

Drug resistant bacteria are bacteria that are killed, removed or controlled by antibiotics.

Examples of drug-resistant bacteria are;

methicillin-resistant Staphylococcus aureusPenicillin-resistant Enterococcus Multi-drug-resistant Mycobacterium tuberculosis.



Scientists are concerned about genetic mutation that causes drug resistance in bacteria because it leads to increase rate of infection and incurable diseases. There is still hope as sophisticated measures are being carried out to inhibit the horizontal gene transfer in these organisms and can serve as a novel therapeutic strategy to fight drug resistance.

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Explanation:

it is the Plato answer

Why is it necessary for Vibrio vulnificus to turn on different genes when the microbe invades a human

Answers

Answer:

Please see below  

Explanation:

Vibrio vulnificus is a gram negative pathogen. It is usually present at the junction between salt water and freshwater. When it invades a human, this is a new type of host for this virus, as opposed to its previous host - a shellfish. So in order to survive and reproduce inside of the human host, it must activate the genes that will enable it to do so.  

What compelled the Grimms to concentrate on old German epics, tales, and literature was a belief that the most natural and pure forms of culture—those which held the community together—were linguistic and based in history. According to them, modern literature, even though it might be remarkably rich, was artificial and thus could not express the genuine essence of Volk culture that emanated naturally from experience and bound the people together. Therefore, all their efforts went toward uncovering stories from the past. –“How the Grimm Brothers Saved the Fairy Tale,” Jack Zipes What is the author’s purpose for writing the essay "How the Grimm Brothers Saved the Fairy Tale”? to entertain children with details from the Grimms’ tales to persuade adults to read and enjoy fairy tales more often to inform scholars of the ways modern literature can be artificial to inform readers of the reasons why the Grimms collected their tales

Answers

Answer:

d. to inform readers of the reasons why the Grimms collected their tales

Explanation:

To inform readers of the reasons why the Grimms collected their tales is the Grimm Brothers Saved the Fairy Tale,” Jack Zipes What is the author’s purpose for writing the essay. Hence, option D is correct.

What is the concept of the passage?

The Grimm Brothers developed a system for gathering and documenting folktales. Thus, folklore studies got their start. The Grimm Brothers firmly felt that natural forms of culture are linguistic and grounded in history, which is the core theme of this extract.

It also makes reference to this, making it one of the suitable choices. They thereby preserved the mythical tale. Since the Grimm Brothers believed that old literature was the most natural and pure kind of culture and that new writing was artificial, it is clear from "Fairy Tale" why they focused on old German epics, tales, and literature rather than modern literature. Informing the reader about these causes is the text's main goal.

Thus, option D is correct.

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Are deep ocean vents part of an ecosystem

Answers

Answer:

yea

Explanation:

Answer:

Yes

Explanation:

Believe it or not, they are! They are parts of an ecosystem because in often cases, they provide heat that helps keep many organisms and animals alive!  Hope this helped!

This is due today at 11:59 and science is not my strong point can anyone answers theses for me....

Answers

Answer:

1.) Dependent variable is weight

Independent variable is growth hormones.

2.) Independent variable is mosquito repellent

Dependent variable is number of bites

3.)Dependent is water

Independent is mass

4.) Indepent is the whole scenario

Dependent is the speed and how it affects the cars.

5.) Independent is the wet or dry enviroment

Dependent is the time spent

Explanation:

Dependent variable is weight and Independent variable is growth hormones.2.) Independent variable is mosquito repellent and Dependent variable is number of bites.

What is Dependent variable?

The dependent variable is the variable that is being measured or tested. For example, in a study looking at how tutoring impacts test scores, the dependent variable would be the participants' test scores since that is what is being measured.

This is different than the independent variable in an experiment, which is a variable that stands on its own. The independent variable (tutoring) doesn't change based on other variables, but the dependent variable (test scores) may.

One way to help identify the dependent variable is to remember that it depends on the independent variable. When researchers make changes to the independent variable, they then measure any resulting changes to the dependent variable.

Therefore, Dependent variable is weight and Independent variable is growth hormones.2.) Independent variable is mosquito repellent and Dependent variable is number of bites.

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Which spheres interact when this process occurs? atmosphere, biosphere, cryosphere hydrosphere, cryosphere, geosphere biosphere, hydrosphere, cryosphere cryosphere, atmosphere, geosphere

Answers

Answer: hydrosphere, cryosphere, geosphere

Explanation:

Answer: B

Explanation:

During which stage of the cell cycle does cell division occur? A. mitosis B. cell growth C. interphase D. quiescence

Answers

Cell division occurs in mitosis.

What is mitosis?

Mitosis is called the process in which there is non-sexual reproduction of cells in which the genetic material is duplicated to generate another cell with the same characteristics of the original cell. Mitosis occurs in cells from the human body or from other species and can occur in processes in which there is damage to some tissue and it has to be repaired.

Mitosis is made up of different phases in which cellular changes are generated to be able to carry out this cell replication, within the stages are: interphase, prophase, prometaphase, metaphase, anaphase and telophase.

Therefore, we can confirm that cell division occurs in mitosis.

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How do polar molecules form Hydrogen Bonds?
What determines whether a compound will dissolve in water?
How do polar molecules differ from non-polar molecules?
Describe an example of cohesion or adhesion that you might observe in your daily life.

Answers

Answer:

How do polar molecules form hydrogen bonds?

Polar molecules form hydrogen bonds when hydrogen is bonded to Nitrogen, Oxygen, or Fiorina. This is because these atoms are highly electro-negative meaning they often have the electron they have sharing with hydrogen. Hydrogen atoms bonded with these atoms are attracted to the partial negative charge of similar atoms.

What determines whether a compound will dissolve in water?

Water is a polar molecule and transmits a partial positive and negative change between its atoms, enabling it to easily dissolve other ions and polar molecules.

How do polar molecules differ from non-polar molecules?

Polar molecules have charged regions due to unequal sharing of electrons/ Nonpolar molecules do not have charged regions because electrons are shared more equally. The charge differences tend to keep the molecules separate.

Describe an example of cohesion or adhesion that you might observe in your daily life.

Cohesion: water beading on a surface.

Adhesion: water sticking to the side of glass.

HELP ASAP WILL MARK YOU BRAINLIEST!!!

Answers

He does not have an independent variable

Explanation:

He placed 2 plants in different locations one being dark and one being sunny and gave them separate treatment.

How can you visually tell if hydrogen peroxide is being broken down by Catalase?

Answers

Answer:

I looked it up and it says when this reaction occurs, oxygen gas bubbles escape and create foam.

Bats have oversized ears which help the pets you sound waves to detect the motion of their prey which example of the characteristics of life is most similar

Answers

Dolphins because of exploration

Personal glasses will need to be covered by Safety Glasses

Answers

Answer:

Yes.

Explanation:

If you just wear personal glasses, your eyes won't be protected.

If you only wear the safety glasses, you won't have the ability to see, and you might spill dangerous substances on your hand, or other areas of your body.

Give two examples of how abiotic factors are influenced by biotic factors.

Answers

Answer:

Ecosystems are influenced by both biotic and abiotic factors. Biotic factors include animals, plants, fungi, bacteria, and protists. Some examples of abiotic factors are water, soil, air, sunlight, temperature, and minerals.

The utilization of resources by the living organisms which are biotic factors influence the abiotic factors, which are the resources.

What are biotic and abiotic factors?

The term biotic factors means the factors of components of the ecosystem which are living. Therefore it can be said that all living organisms present on earth are biotic components.

Examples of biotic factors are plants, animals, human beings, decomposers, yeast, insects, etc. All of these factors or biotic components interact with each other for the development of new generations. That means reproducing new organisms to maintain the food chain.

The components of the ecosystem that are non-living are termed abiotic factors. They play a very important role in the maintenance of ecosystems. The interaction of the biotic and abiotic factors is important for the stability of the ecosystem.

Some examples of abiotic factors are air, weather, water, temperature, humidity, altitude, pH, level of soil, types of soil and more, water flow rate, water depth, etc.

Therefore, the use of water and land by living organisms are some of the many examples by which biotic factors affect abiotic factors.

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what is the 4 structures of an enzyme​

Answers

Enzymes are made up of amino acids which are linked together via amide (peptide) bonds in a linear chain. This is the primary structure. The resulting amino acid chain is called a polypeptide or protein. The specific order of amino acid in the protein is encoded by the DNA sequence of the corresponding gene

Question 2
If Sammi had more time or better resources, how could she improve her model to eliminate some of the
weaknesses?

Answers

Answer:

Sammi should consider applying SWOT model.

Explanation:

Sammi should consider her weaknesses and strengths. She should consider and list her weaknesses and then try to overcome these weakness by the available opportunities. She should know and list her strengths which she thinks are suitable to avail the opportunities coming her way. Sammi will then be able to deeply analyze the available opportunities and threats. She can find a way to improve herself and become more confident.

In an experiment, a group of scientists want to test the effects of humidity on plant growth. The scientists expose the plants in the study to a range of different humidities to measure plant growth over a specified amount of time. In this experiment. What is the independent variable?

Please help me ASAP

A) Plant growth
B) Humidity
С)Fertilizer
D)None of the above

Answers

Answer:

The correct answer is - option B) humidity.

Explanation:

Independent variable is the variable in a scientific experiment that can be modify or change in order to find out the response and analyse the response of dependent variable.

In this experiment the independent variable is humidity as it is changed in order to find out and study plant growth response by the effect of humidity.

Thus, the correct answer is - option B) humidity.

What is the purpose of respiration in living organisms?

Answers

Answer:

All life forms have one essential purpose

Explanation:

Survival. This is even more important than reproduction. After all, babies and grannies are alive but don't reproduce. To be alive is more than passing genes along

13. What are some sources of error when measuring yarn?

Answers

A source of error is anything that could cause you to have inaccurate data.

Knot in the yarnFrayed edges of the yarnYarn isn't straightNot flat against the ruler

These are just a few examples, but the list goes on.

If I want to do an experiment to test whether vitamin C helps prevent colds, the control group must​

Answers

Answer:

pee in a cup

Explanation:

right answer

At approximately –50 mV, _____ is reached, Gate 1 of the voltage-activated Na+ channels opens, and Na+ ions _____ the neuron due to voltage and concentration gradients.

Answers

Answer:

threshold, enter

Explanation:

Sodium channels may be defined as the integral membrane proteins which  forms the ion channels. It conducts the sodium ions through the cell's plasma membrane.

These channels are said to be located in the chromosome 2 of the human a well as mouse species. Sodium channels functions to mediate the fast depolarization and it conduct the electrical impulses throughout the nerves,  heart and the muscles.

The sodium channel opens when a threshold is reached at -50mV to -55 mV which causes the rapid opening of the voltage-gated sodium channels.

SOLVE Suppose you are helping scientists conduct a study of a population of Clear Lake
hitch, which is a fish species that lives in Californian lakes. The scientists initially capture
80 hitch from a lake and tag all of them. After 30 days, they capture 100 hitch and count
20 tags. Use the space below to calculate the estimated number of hitch in the lake. Show
your work

Answers

Answer:

400

Explanation:

Scientists tagged 80 hitch. When they capture 100 hitch, 20 are tagged. In order to estimate the population of hitch, we can assume that this proportion is consistent.

This means for every 20 tagged hitch, there are 80 untagged. We know there are 80 tagged total, so we need to multiply 20 by 4 to get it to 80. To keep the proportion equal we also need to multiply the untagged hitch.

[tex]\frac{20}{80}[/tex] * [tex]\frac{4}{4}[/tex] = [tex]\frac{80}{320}[/tex]

Still following the proportion, we have 80 tagged hitch and 320 untagged hitch. 80 + 320 = 400 hitch total.

Give one component of the Endosymbiotic Theory.

Answers

Answer:

Eukaryotic cells evolved from prokaryotic cells.

Explanation:

The endosymbiotic theory states that some of the organelles in today's eukaryotic cells were once prokaryotic microbes. Mitochondria and chloroplasts are believed to have been developed over time.

Which of the following is NOT a true statement?*
1 point
Two or more atoms held together with bonds make up a molecule.
Mixtures can be made of two elements, two compounds or an element & a compound.
At least two different types of atoms are required to make a compound.
Pure substances are made of only one type of atom.

Answers

Answer: Two or more atoms held together with bonds make up a molecule.

Explanation:

Two or more atoms held together with bonds make up a molecule. Thus option a is not a true statement.

What is covalent bond?

A covalent bond is defined as  a chemical bond that includes the sharing of electron pair between atoms.

The pair of electrons are know as bonding pairs and the stable balance of attractive and repulsive forces between atoms.

The properties of covalent bond are mentioned below:

The covalent compounds have low melting points and boiling points.

The covalent compounds do not contain electricity.

The covalent compounds are  having lower enthalpies of vaporization and fusion.

The covalent compounds are easily catches fire and are more flammable than ionic compounds.

The covalent compounds are very soft and flexible.

The physical properties of covalent compounds are that they have lower melting points and electrical conductivity.

Therefore, two or more atoms held together with bonds make up a molecule. Thus option a is not a true statement.

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Vacuoles are most similar to what other organelle found in both plant and animal cells?Why?

Answers

lysosomes, because both have the digestive roles in cells.

Why do organisms have to be “organized” to live?

Answers

Answer:

because they have to be seperated

Explanation:

In blood capillaries, blood pressure forces fluid through gaps in the capillary wall in a process called

Answers

Explanation:

filtration or capillary filtration

In blood capillaries, blood pressure forces fluid through gaps in the capillary wall in a process called osmosis. The pressure is osmotic pressure.

What is osmosis?

Osmosis is a process when the molecules travel from a high concentration to a low concentration region. It is the diffusion of material from a semipermeable membrane.

The blood capillaries are part of the circulatory system of the body. They are of two types, artery, and veins. They circulate blood in the body. Blood pressure is the pressure exerted by the movement of blood on the arteries and veins.

The process of osmosis happens when the fluid is exerted in the blood capillaries through the gaps.

Thus, Osmosis is a phenomenon in blood capillaries where blood pressure pushes fluid through openings in the capillary wall. Osmotic pressure is present.

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.

An electrically neutral atom has an atomic number of 11 and an atomic mass of 23. This atom has ____ protons, neutrons, and ____ electrons

Answers

Answer: This is called sodium

Explanation: 11 protons, 11 electrons.

This  electrically neutral atom has 11 protons, 12 neutrons, and 11 electrons .

What is an atomic number?

The number of a chemical element in the periodic system, whereby the elements are arranged in order of increasing number of protons in the nucleus. Accordingly, the number of protons, which is always equal to the number of electrons in the neutral atom, is also the atomic number.

What is an atomic mass?

The mass number or atomic mass is the combined number of protons and neutrons in a nucleus, so it's protons and neutrons.

According to the question

Electrically neutral atom has an atomic number = 11

Electrically neutral atom has an atomic mass =  23

Now,

 the number of protons = number of electrons in the neutral atom =  atomic number.

Therefore,

The atom has proton =  11

The atom has electron =  11

As, atomic mass is the combined number of protons and neutrons in a nucleus

Therefore,

The atom has neutrons = 23 - 11 = 12

Hence, This atom has 11 protons, 12 neutrons, and 11 electrons .

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Why has California’s kelp forest changed over time?

Answers

Answer:

By 2014, a huge clump of warm water developed towards the coast end, creating a catalyst that has additionally changed this underwater environment. The determined warmer sea temperatures stress the kelp forests to the point that growth and reproduction have slowed drastically and caused damage to remaining fronds and tissue.

The variable in an experiment that changes as a result of the manipulated variable

Answers

Answer:

dependent variable

Explanation:

a dependent variable changes as a result of the manipulated variable.

Why is NASA now more accurate and precise with the Martian landing

Answers

Answer:

because now they have had many successful landings on mars like curiosity,spirit,and many others l.Now they know the best ways to land and how to do all the procedures.

NASA is now more accurate and precise with the Martian landing because they improved the interplanetary navigation that significantly tightened the eclipse between the period from 1997 to 2008.

What is a Martian landing?

Martian landing may also be called a Mars landing which illustrates a landing of a spacecraft on the surface of Mars. It is initiated when the spacecraft reaches the top of the Martian atmosphere, traveling nearly 12,500 miles per hour.

The landing on Mars seems difficult for all space organizations but NASA's Perseverance rover makes this possible in order to touch down the most challenging terrain on Mars that has been ever targeted.

Apart from this, the landing of NASA's Pathfinder and Pheonix also have remarkable success in the landing. Also, NASA has well-developed technologies in the field of research with good experience and talent.

Therefore, NASA is now more accurate and precise with the Martian landing because they improved interplanetary navigation.

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