Answer:
A. solvent
Explanation:
Its called the universal solvent because its capable of dissolving more substances than any other liquid.
Type your response in the box.
Watch this video about the stresses on the body caused by carrying heavy backpacks. Then design an
investigation about the effect of carrying backpacks on students' health using these steps of the scientific method:
• make observations or inferences
• ask questions
• construct hypotheses and make predictions
• test hypotheses
• analyze results
Your investigation can address any question you have about backpacks and student's health that you choose.
PLATO helppp
Answer:
Make observations or inferences: In school, most students carry a backpack. Students frequently complain that their backpacks are heavy or hurt their backs.
Ask questions: Do students who carry heavier backpacks report more pain than students who do not?
Construct hypotheses and make predictions: Students who carry heavier backpacks are more likely to experience pain in their back at the end of the school day.
Test hypotheses: Get a sample of students in the school to help with the experiment. All students in the experiment would be students from the school and have no known back conditions. Then weigh the students’ backpacks, and ask the students if they have back pain at the end of the day.
Analyze results: Record the data in a table, and then organize the information by the weight of the backpacks. Group the backpack weights in five-pound intervals (five pounds, ten pounds, etc.) and use a bar graph to show the yes and no responses to the pain question for each student.
Explanation:
trust me its right bro
Answer:
Make observations or inferences: In school, most students carry a backpack. Students frequently complain that their backpacks are heavy or hurt their backs.
Ask questions: Do students who carry heavier backpacks report more pain than students who do not?
Construct hypotheses and make predictions: Students who carry heavier backpacks are more likely to experience pain in their back at the end of the school day.
Test hypotheses: Get a sample of students in the school to help with the experiment. All students in the experiment would be students from the school and have no known back conditions. Then weigh the students’ backpacks, and ask the students if they have back pain at the end of the day.
Analyze results: Record the data in a table, and then organize the information by the weight of the backpacks. Group the backpack weights in five-pound intervals (five pounds, ten pounds, etc.) and use a bar graph to show the yes and no responses to the pain question for each student.
Explanation:
Its the sample answer
Solve this equation for y, in terms of x.
16x - 4y = -8
Answer:
the answer I believe is y=2+4x
Ana wants to make sure who between Mr. A and Mr. B is her biological father. Which Scientist should she seek?
Answer: a scientist who knows to check the dna
Explanation:
Because in your dna there are 46 nucleus in which 23 are mothers and another 23 are fathers so by checking mr a and mr b dna you can find out
vocabulary: match the phrases on the left with the term that best fits. use answers only one time
pls help:(
Answer:
Explanation:
Autotroph
Chloroplasts
Krebs cycle
Glucose
Anaerobic
Aerobic
Energy
Atp
Glycolysis
Sunlight
Light independent reaction
Chlorophyll
Need 11 facts about solar eclipse
1-The longest a total solar eclipse can last is 7.5 minutes.
2-The width of the path of totality is usually about 160 km across and can sweep across an area of Earth's surface about 10,000 miles long.
3-Almost identical eclipses occur after 18 years and 11 days.
4-This period of 223 synodic months is called a saros.
5-Each year there are between 2 and 5 solar eclipses.
6-The total solar eclipse, when the Moon completely obscures the Sun and leaves only the faint solar corona, is known as a Totality.
7-Total solar eclipses are rare, happening only once every 18 months.
8-Total solar eclipses produce harmful rays that can cause blindness.
9-If any planets are in the sky at the time of a total solar eclipse, they can be seen as points of light.
10-During a total solar eclipse, conditions in the path of totality can change quickly. Air temperatures drop and the immediate area becomes dark.
11- A solar eclipse can only occur when the Moon is close enough to the ecliptic plane during a new moon
Answer:
1-The longest a total solar eclipse can last is 7.5 minutes.
2-The width of the path of totality is usually about 160 km across and can sweep across an area of Earth's surface about 10,000 miles long.
3-Depending on the geometry of the Sun, Moon, and Earth, there can be between 2 and 5 solar eclipses each year.
4-A total solar eclipse can happen once every 1-2 years. This makes them very rare events.
5-Almost identical eclipses occur after 18 years and 11 days. This period of 223 synodic months is called a saros.
6-During a total solar eclipse, conditions in the path of totality can change quickly. Air temperatures drop and the immediate area becomes dark.
7-There is another type of solar eclipse, known as a hybrid eclipse, which shifts between a total and annular eclipse depending on where you view it from on Earth. These are comparatively rare.
8-The speed of the Moon as it moves across the Sun is approximately 2,250 km (1,398 miles) per hour.
9-If you are at the North or South Poles, you cannot view a total solar eclipse.
10-In ancient times, people thought an eclipse was a sign that the gods were angry or that bad things were about to happen.
11-During a total solar eclipse day time looks more like twilight.
Explanation:
Your welcome.
2. Cell division by mitosis produces:
A. Two cells identical to each other but not to the parent cell
B. Two cells identical to each other and to the parent cell
C. Two cells with half the amount of DNA as the parent cell
D. Two cells with twice the amount of DNA as the parent cell
Please hurry !!
Answer:
D
Explanation:
I think that is tha Fact
10.
Both lipids and carbohydrates can be used by the cell as -
A. O replacements for salts.
В.
catalysts for metabolic reactions.
c. building blocks for RNA.
D
sources of energy.
D both can be used as sources of energy
The similarity between lipids and carbohydrates is that both are classes of chemical compounds that are found in living things. Thus, option D is correct.
What are the use of lipid and carbohydrate?Two of the four significant biomolecules include lipids and carbohydrates. They are both sources of energy.
However, although lipids store energy for later use and release it more slowly, carbs are available as instant energy sources. Thus, this is the primary distinction between lipids and carbs.
More energy is stored in lipids than in an equivalent mass of carbs. To release their energy, however, carbohydrates are easier to digest than lipids.
This indicates that they are made up of many carbon atoms with bonds to oxygen and hydrogen.
Therefore, Both lipids and carbohydrates can be used by the cell as sources of energy.
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Drag the numbers to put the following steps in the correct order.
As electrons move down the ETC, a H+ gradient is made.
The Krebs cycle produces ATP, NADH and CO2.
Ht pass through the ATP synthase to make ATP.
NADH gives electrons to the ETC.
In glycolysis, glucose is split into two pyruvate and makes some ATP.
Answer:
4, 2, 5, 3, 1
4 (As electrons move down the ETC, a H+ gradient is made), 2 (The Krebs cycle produces ATP, NADH and CO2), 5 (H+ pass through the ATP synthase to make ATP), 3 (NADH gives electrons to the ETC), 1 (In glycolysis, glucose is split into two pyruvate and makes some ATP)
In glycolysis, glucose is split into two pyruvate and makes some ATP. (GLYCOLYSIS)The Krebs cycle produces ATP, NADH and CO2. (KREBS CYCLE)NADH gives electrons to the ETC. (ELECTRON TRANSPORT CHAIN)As electrons move down the ETC, a H+ gradient is made. (ETC)H+ passes through the ATP synthase to make ATP. (ATP SYNTHASE)Explanation:
The correct steps are as follows:
NADH gives electrons to the ETC.The Krebs cycle produces ATP, NADH and CO2.In glycolysis, glucose is split into two pyruvate and makes some ATP.Ht pass through the ATP synthase to make ATP.As electrons move down the ETC, a H+ gradient is made.What is glycolysis? Glycolysis is the process in which glucose is broken down to produce energy. It generates two molecules of pyruvate, ATP, NADH and water. The process takes place in the cytoplasm of a cell and does not require oxygen. It occurs in both aerobic and anaerobic organisms.Thus, these are the correct order.
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Identify the type of change illustrated.
Propaganda Originally, propaganda meant a system for propagating (spreading) religious doctrines, then any kind of
ideas. As used today, it generally means the dissemination of political opinions for the purpose of biasing judgment
(brainwashing)
Answer:
The correct answer is - pejoration.
Explanation:
Pejoration is the change that downgraded or worsen a specific condition or word or process which originally positive but now its meaning becomes totally negative.
Propaganda is the originally stands for the spreading religious doctrine but now its meaning becomes the dissemination of political opinions for brainwashing people.
where are neutron founded?
Answer:
By 1920, physicists knew that most of the mass of the atom was located in a nucleus at its center, and that this central core contained protons. In May 1932 James Chadwick announced that the core also contained a new uncharged particle, which he called the neutron. Chadwick was born in1891 in Manchester, England.
Explanation:
Answer:
In May 1932 James Chadwick announced that the core also contained a new uncharged particle, which he called the neutron. Chadwick was born in1891 in Manchester, England.
Explanation:
Neutrons come from fusion. Let's say you push two protons together enough for them to "touch", specifically for them to experience attraction from the strong nuclear force that is stronger than electrostatic repulsion.You know that neutrons are found in the nucleus of an atom. Under normal conditions, protons and neutrons stick together in the nucleus. During radioactive decay, they may be knocked out of there.
In which layer of the ocean are you likely to find microscopic plants called phytoplankton?
Which structure in plants produces a substance that protects the extending roots from developing friction?
Answer:
root cap
Explanation:
Consider the energy diagram below.
What is the correct answer
Answer:
B
Explanation:
Less activation energy means the reaction will easily occur.
oxygen gas is made of molecules like the one this model shows, which chemical formula, most likely describes oxygen gas?
A.O100
B.OO
C.Og
D.O2
Answer:D
Explanation:
dean is studying an organism. It is heterotrophic, multicellular, and eukaryotic. And sometimes undergoes sexual reproduction.
A.Fungi
B.Bacteria
C.Animalia
D.Plantae
Answer:
A) Fungi
Explanation:
After an ionic bond is formed, what is the charge of the atom that gained an electron?
Answer: Negative
Explanation:
This is called an anion. Whenever an atom gains a electron, it becomes negative. When an atom loses an electron, it becomes postitive. Positive atoms are called cation.
After an ionic bond is formed, the charge of the atom that gained an electron will be negative.
What is an ionic bond?An ionic bond, also widely recognized as an electrovalent bond, is a category of interconnection established by the electrostatic attraction of ions with opposing charge in a chemical substance.
When the valence (outermost) electrons of one atom are permanently transferred to another atom, a bond is formed.
An ionic bond is formed between a metal and a nonmetal, whereas a covalent bond is formed between two nonmetals.
An ionic bond is formed by the complete transfer of electrons from one atom to another. When an atom loses one or more electrons, it becomes a cation, or positively charged ion.
When an atom gains one or more electrons, it becomes an anion, a negatively charged ion.
Thus, the atom is negatively charged as it gained electron.
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what is the term used for populations moving into an area
Answer:
Popularity Growth (Immigration)
Explanation:
:( i tried (sorry)
Answer
Population transfer or resettlement is the movement of a large group people from one region to another
Hope this helps! <3
What determines the vast majority of characteristics in an atom?
Answer:
The vast majority of an atom's properties are determined by the number of electrons (or protons) that an atom has
Explanation:
1. How do you think rapid changes in the chracteristics of habitats affect the niches of
animals occupying that habitat?
Answer:
The rapid changes would make an organism change their land, environment around them, and the food web
When the habitat of the animals living in it changes, both the animals and the habitat change. It changes the biotic and abiotic factors of the niche and ecosystem. Habitat is part of a niche.
What is the impact of the changing habitat?
Niche is a broad space in which the particular animal roams, searches for food, and reproduces, but habitat is a part of the niche where the animal spends most of its life. Human interventions, such as cutting down forests for industry, roads, and so on, have an impact on wildlife. Due to this, the temperature of the earth keeps on increasing, resulting in climate change, global warming, the melting of ice, a rise in water levels, etc.
If these changes happen, then animals will have difficulty living in their habitat. The environment will not be favorable for living, and both abiotic and biotic factors will be disturbed, such as the fertility of the soil, which is affected by fewer trees. Other animals affect by this change too.
Hence, in this way, the change in habitat changes the niche.
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According to the endosymbiotic theory, which cellular process was involved in the evolution of mitochondria and chloroplasts?
A.symbiosis
B.phagocytosis
C.endosymbiosis
D.photosynthesis
According to the endosymbiotic theory, the cellular process was involved in the evolution of mitochondria and chloroplasts is phagocytosis.
What is endosymbiotic theory?Endosymbiotic theory is the theory that mitochondria and chloroplasts, which are organelles of eukaryotic cells, originated as independent organisms.
The endosymbiotic theory explains that smaller prokaryotic cells were engulfed by larger prokaryotic cells in a process called phagocytosis.
Therefore, according to the endosymbiotic theory, the cellular process was involved in the evolution of mitochondria and chloroplasts is phagocytosis.
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A base is a substance that
The cycle of the moon’s phases is predictable. About how long does it take to cycle from a first quarter moon to a full moon?
Answer:
About 14.75 days
How can temperature and pH affect enzymes?
Answer:
raising temperature generally speeds up a reaction, and lowering temperature slows down a reaction. extreme pH values can cause enzymes to denature.
enzymes work best within specific temperature and pH ranges, and sub-optimal conditions can cause an enzyme to lose its ability to bind to a substrate.
Listed in the Item Bank are key terms and expressions, each of which is associated with one of the columns. Some terms may display additional information when you click on them. Drag and drop each item into the correct column. The order does not matter.
Nucleic Acid: Carries genetic information
Answer:
Carbohydrate: Used as main source of energy for a cell
Lipid: Can provide insulation
Protein:
1.Some are stringy and fibrous and provide support (i.e., collagen and keratin) 2.Help speed up cellular reactions
Amino Acid: Carries genetic information
Explanation: I'm the one who asked the question. I asked it, received an unhelpful answer, figured it out by myself but saw that I can't answer my own question so I made another account to answer this. hope it helps.
Please help me complete this molecules of life chart by tomorrow night I tried please tell me what I need to take out and put in.
Answer:
It is in the file
Explanation:
The browning of potatoes on contact with oxygen is caused by the enzyme reaction depicted above. Which of the following could increase the rate of this reaction?
A. Adding more catechol oxidase
B. Adding more benzoquinone
C. Reducing the amount of catechol
D.Reducing the amount of catechol oxidase
Pls help! P.S. you may or may not have to click on the picture to see all of it. Thank you.
Answer:
I think it is adding catechol oxidase
Explanation:
This is because more enzymes are able to take in more substrates, or reactants more quickly, therefore increasing the speed of the reaction.
Hope this helps!
Answer:
he is correct it is adding catechol oxidase
Explanation:
it would increase the rate of the reaction
A cell has a defect that results in the loss of its ability to regulate the passage of materials such as water, food and
wastes into and out of the cell. In which of the following cell structures is this issue most likely to be found?
a. Ribosomes
b. Cell membrane
c. Chloroplasts
d. Endoplasmic reticulum
What are microscopic unicellular, prokaryotic organisms that move through the Earth doing both good and harm?
a. Protists
b. Eubacteria
c. Fungi
d. Archaebacteria
Eubacteria are microscopic unicellular, prokaryotic organisms that move through the Earth doing both good and harm. Thus, the correct option is B.
What are Prokaryotic organisms?Prokaryotic organisms may be defined as single-celled organisms that lack a well-defined nucleus and other membrane-bound cell organelles.
Protista is a simple eukaryotic organism that is unicellular in nature. Fungi are non-photosynthetic organisms that belong to the class of eukaryotic organisms. Archaebacteria are a group of prokaryotes but they emerge from eukaryotes.
Therefore, Eubacteria are microscopic unicellular, prokaryotic organisms that move through the Earth doing both good and harm. Thus, the correct option is B.
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3. Approximately when was
the Moon full?
Answer:
When the Sun and the moon directly align.
Explanation:
At Full Moon, the entire face of the Moon is illuminated by the Sun's rays and it can be bright enough to light up otherwise dark nights.
Technically, this primary Moon phase only lasts a moment, the instant when the Sun and the Moon are aligned on opposite sides of Earth (see illustration). So the exact time for Full Moon is during the day on parts of the planet.
However, the Moon can appear to be full a day before or after while more than 98% of the Moon's disc is illuminated.
Therefore, it can be difficult to tell the difference between a Full Moon and the last stage of a Waxing Gibbous Moon or the beginning of a Waning Gibbous Moon.
answer:
the last full moon was on _______ 2020
explanation:
googlw the last date and there you go!
hope this helped <3
A tapeworm needs to eat food that is already digested, so it lives in the intestines of a dogfish shark and derives nourishment from the shark. As a result of the tapeworm infestation, the shark is weakened and more vulnerable to disease and predation.
What type of relationship is this?
Answer:
parasitism
Explanation:
This is an example of parasitism, because the shark is not benefitting from this relationship, only the tape worm, making this relationship parasitism.
A tapeworm living in the intestines of a dog fish shark and derives nourishment from the shark due to this reason the shark is weakened and more vulnerable to disease and predation. Thus, this type of relationship is known as parasitism.
What is parasitism ?The term parasitism is defined as a relationship among two species in which one organism, that is parasite, survive inside another organism, that is host, that causes harm, and survived.
Tapeworms and barnacles are found attached to the insides part of the intestines of animals like cows, pigs,etc.
They eat the food of animals inside which they live and weakened the animal.
Therefore,a tapeworm living in the intestines of a dog fish shark and derives nourishment from the shark due to this reason the shark is weakened and more vulnerable to disease and predation. Thus, this type of relationship is known as parasitism.
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