Answer:
The flaw is that he is studying pseudoscience (fake science) and he did not repeat his experiments in any form of trials.
Personal glasses will need to be covered by Safety Glasses
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.
An electrically neutral atom has an atomic number of 11 and an atomic mass of 23. This atom has ____ protons, neutrons, and ____ electrons
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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Which type of cell transport includes the diffusion of water?
Answer:
Passive transport
Explanation:
Water is transported through channel proteins called aquaporins.
Did Odysseus care more about what the suitors had stolen from him or about how they offended his honor?
Answer:
how they offended his honor?
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
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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When two species from different lineages independently evolve similar characteristics because they occupy similar environments, we observe ______.
Answer:
The correct answer is - convergent evolution.
Explanation:
When two organism are not monophyletic or had different lineages, evolve independently same type of characteristics in due to the adaption to the similar environmental conditions termed as convergent evolution in evolutionary biology.
Wings of insects, birds, and bats and their flight has similar nature due to the environmental condition but have different lineages, are one of the example of convergent evolution.
Thus, the correct answer - convergent evolution.
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.
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.
what is the 4 structures of an enzyme
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
Give two examples of how abiotic factors are influenced by biotic factors.
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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Metabolism is all the in your body
Answer:
Chemical reactions
Explanation:
Metabolism is generally defined as all the chemical reactions in your body which help to maintain its healthy living state.
Hope this helped!
Why do organisms have to be “organized” to live?
Answer:
because they have to be seperated
Explanation:
what is this symbol CL-
Answer: CL en quimica es
Explanation: Cloro .
The variable in an experiment that changes as a result of the manipulated variable
Answer:
dependent variable
Explanation:
a dependent variable changes as a result of the manipulated variable.
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
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.
What is the purpose of respiration in living organisms?
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
Which sentence supports the statement that complex, multicellular organisms are made up of specialized cells that each perform different functions for the body?
Answer:
Multicellular organisms need specialized cells to carry out their activities since they are not directly exposed to the environment. These specialized cells work together to perform different functions. This involves cells adapting special characteristics to perform specific functions in a body.
Explanation:
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Answer:
Answer is A
Human liver cells make proteins that promote homeostasis that neurons do not.
Explanation:
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
Question 2
If Sammi had more time or better resources, how could she improve her model to eliminate some of the
weaknesses?
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.
1. What scientific attitudes help generate new ideas?
Answer:
Scientists share habits of mind, that lead them to exploration and discovery. New ideas are generated by curiosity, skepticism, open-mindedness, and creativity.
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.
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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What is speciation? the complete loss of a species that has died out the evolutionary process through which new species emerge a short-term environmental change a long-term environmental change
Answer:
Evolutionary process through which new species emerg
Explanation:
Answer:
B. - The evolutionary process through which new species emerge
Explanation:
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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.
Why is it necessary for Vibrio vulnificus to turn on different genes when the microbe invades a human
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.
Analyze evidence from the lesson regarding the relationship between the structures found in cells and functions carried out by cells related to protein formation and transport or the capture, storage, and usage of energy. Choose a cellular function and make a claim about how structural features of the cell support the function. Use specific examples and details to support your claim.
Answer:
This is vvv
Explanation:
One of the cellular functions is making food/creating energy. Plant cells do this the best as they have chloroplasts that can turn sunlight, water, and carbon dioxide into glucose and oxygen via photosynthesis. This glucose is then turned into usable energy when it is transported to the mitochondria where it is turned with oxygen into carbon dioxide and ATP via cellular respiration. The ATP is taken around the cell and distributed to where it is needed via the Golgi apparatus.
Now don't highlight this part when you copy and paste otherwise they will know for sure;)
One of the cellular functions is making food/creating energy. Plant cells do this the best as they have chloroplasts that can turn sunlight, water, and carbon dioxide into glucose and oxygen via photosynthesis.
What is golgi body?
The relationship between the structures found in cells and functions carried out by cells related to protein formation and transport or the capture, storage, and usage of energy is known as golgi body appratus.
This glucose is then turned into usable energy when it has transported to the mitochondria where it has been turned with oxygen into carbon dioxide and ATP via cellular respiration. The ATP is taken around the cell and distributed to where it is needed via the Golgi apparatus.
Therefore, One of the cellular functions is making food/creating energy. Plant cells do this the best as they have chloroplasts that can turn sunlight, water, and carbon dioxide into glucose and oxygen via photosynthesis.
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Why is NASA now more accurate and precise with the Martian landing
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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How can you visually tell if hydrogen peroxide is being broken down by Catalase?
Answer:
I looked it up and it says when this reaction occurs, oxygen gas bubbles escape and create foam.
13. What are some sources of error when measuring yarn?
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 rulerThese are just a few examples, but the list goes on.
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A person with brown eyes has children with a person with blue eyes. The genotype of the brown eyed person is unknown;
however, it is known that brown is dominant over blue. If all of their children have brown eyes, what is most likely the
genotype of the brown eyed parent?
.
A. Bb
.
B. None of these
C.BB
D. bb
Answer:
C.
Explanation:
On the punnet square, with genotype BB, you'd be highly likely to have brown eyes unless the person with blue eyes has a dominant blue eye genotype.
A person with brown eyes has children with a person with blue eyes. If all the children are brown-eyed, that means the genotype of the parents is BB. So, the correct option is C.
What is a punnet square?
A square diagram is used to predict the genotype and thus the phenotype of the offspring when the genotype of the parents is known.
In a punnet square, the gametes formed from the genotype of one parent are written across the top row and gametes formed from the genotypes of another parent are written across the left corner.
The gametes are then crossed with each other to predict the genotype and thus the phenotype of offspring.
If one parent is brown-eyed, their genotype could be either BB or Bb. If the other parent is blue-eyed, their genotype is bb.
Now if all their children are brown-eyed. The genotype of the brown-eyed parent would be BB.
If the genotype of the brown-eyed parent was Bb, there would be two offsprings with genotype Bb and two offsprings with the genotype bb.
Therefore, the correct option is C
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If I want to do an experiment to test whether vitamin C helps prevent colds, the control group must
Answer:
pee in a cup
Explanation:
right answer
Which spheres interact when this process occurs? atmosphere, biosphere, cryosphere hydrosphere, cryosphere, geosphere biosphere, hydrosphere, cryosphere cryosphere, atmosphere, geosphere
Answer: hydrosphere, cryosphere, geosphere
Explanation:
Answer: B
Explanation: