Answer:
The Sun rotates on its axis once in about 27 days. This rotation was first detected by observing the motion of sunspots. The Sun's rotation axis is tilted by about 7.25 degrees from the axis of the Earth's orbit so we see more of the Sun's north pole in September of each year and more of its south pole in March.
Since the Sun is a ball of gas/plasma, it does not have to rotate rigidly like the solid planets and moons do. In fact, the Sun's equatorial regions rotate faster (taking only about 24 days) than the polar regions (which rotate once in more than 30 days). The source of this "differential rotation" is an area of current research in solar astronomy.
Answer:
To explain this problem, evolutionist propose a mechanism of magnetic field breaking.
Explanation:
Turgor pressure is the pressure exerted on a plant cell wall by water. When wilted plants are placed in water, they demonstrate increased turgor pressure and become straighter. What is occurring at the cellular level when plants display increased turgor pressure?
Answer: When wilted plants are given water, it enters the cell generating turgor and giving a firmer appearance, and this water is stored in the vacuoles.
Explanation:
Turgor is a phenomenon in plant cells in which the cell expands due to the pressure exerted by the fluids and also by the cell content on the walls. It is related to osmosis, since the external pressure is usually very high and this internal pressure dilates the cell as much as the elasticity of the membranes allows. Then, the cells swell by absorbing water, tensing the membranes because of the pressure against them. When the fluid exerts outward pressure on the cell wall it is called turgor pressure. Whereas, the inward pressure exerted on the cell contents by the stretched cell wall is called wall pressure. Generally, both pressures, turgor pressure and wall pressure, are counterbalanced and balanced.
So, this pressure of turgor facilitates the elongation of the cells in the plant, and also, the cells use this phenomenon to regulate the transpiration through the opening and closing of the stomach.
Thereby, the turgor of a living cell is influenced by three primary factors:
An adequate supply of water.The formation of osmotically substances.A semi-permeable membrane.Vacuoles are organelles bounded by a single membrane and present in plant and fungal cells, and where water is stored. Plant cells control their turgor pressure through the movement of water into or out of vacuoles. When wilted plants are given water, it enters the cell generating turgor and giving a firmer appearance, and this water is stored in the vacuoles.
Answer:
When wilted plants are given water, it enters the cell generating turgor and giving a firmer appearance, and this water is stored in the vacuoles.'
Explanation:
what are the limitations of the respiratory system?
Answer:
Having gills, or the ability of gills.
Explanation:
Our lungs can't filter out water and use the oxygen in the water, sadly.
And, we can't hold our breath for that long, compared to other mammals (the only way that we can hold our breath for a long time is if we breathe in pure oxygen).
the atomic number of an element is equal to the
Answer:
It equals the number of protons and electrons.
Explanation:
Which step in the process of photosynthesis is dependent on
light energy?
A. splitting carbon dioxide into carbon and oxygen
B. splitting water into hydrogen and oxygen
C. combining hydrogen and oxygen to form water
D. combining carbon and oxygen into carbon dioxide
Answer:
c.
Explanation:
During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, meaning it loses electrons, while the carbon dioxide is reduced, meaning it gains electrons. This transforms the water into oxygen and the carbon dioxide into glucose.
The process of photosynthesis that is dependent on light energy involves splitting water into hydrogen and oxygen. The correct option is B.
What is photosynthesis?The process by which plants convert carbon dioxide, water, and sunshine into oxygen and sugar-based energy is known as photosynthesis.
The main purpose of photosynthesis is to transform solar energy into chemical energy, which is then stored for later use. This mechanism primarily provides energy to the planet's life systems.
The light-dependent reaction of photosynthesis begins with the absorption of solar energy by pigment molecules.
Chlorophyll an is the most prevalent and plentiful pigment. To begin photosynthesis, a photon enters photosystem II.
Four significant stages make up a light-dependent reaction: the absorption of light energy, the splitting of water molecules, the release of oxygen, and the synthesis of the energy-carrying molecules ATP and NADPH.
Thus, the correct option is B.
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Stars begin their life cycle in: a. a black hole. b. a nova. c. a nebula. d. a supernova. explain for every answer PLEASE I NEED IT IS DUE TODAY!!!!!!!!!!!!!!!!
Answer:
C. a nebula
Explanation:
a supernova is when it explodes and then it turns into a black hole
Tratando-se sobre atividades aeróbias, segundo Cooper (1972), qual das alternativas abaixo não está correta? a) Aumento da eficiência dos pulmões e coração. b) Aumento das cavidades do coração, aumento do volume total de sangue e volume máximo de oxigênio (aumento da absorção, captação e transporte de oxigênio). c) Aumento do número e tamanho dos vasos sanguíneos. d) Melhora da tonicidade muscular e dos vasos sanguíneos. e) Diminuição do colesterol bom (HDL), aumento do colesterol mal (LDL) URGENTE
Answer:
Diminuição do colesterol bom (HDL), aumento do colesterol mal (LDL)
Explanation.
Esto debe revertirse, debe ser una disminución del colesterol malo y un aumento del colesterol bueno.
Básicamente, el ejercicio aumenta el HDL y reduce los triglicéridos. En condiciones normales, los ejercicios aeróbicos no reducen el LDL. Sin embargo, cuando se combina con cambios en la dieta y una pérdida de peso bien controlada, el efecto combinado podría reducir el LDL.
En las condiciones estándar, el ejercicio recomendado por semana es de 150 minutos de ejercicios suaves o 75 minutos de ejercicio vigoroso por semana.
Por lo tanto, cuando se calcula por semana, esto sería un promedio de 20 minutos de ejercicio por día.
Andar en bicicleta, caminar, hacer jardinería y aeróbicos acuáticos son ejemplos prácticos de ejercicios leves o moderados que podrían aumentar el HDL. Sin embargo, el baile aeróbico, el trote y el salto de cuerda son ejemplos de ejercicios vigorosos que, cuando se combinan con la dieta y la pérdida de peso, conducen a una disminución del LDL.
This should be reversed, it should be a decrease in bad cholesterol and an increase in good cholesterol.
Basically, exercise boosts the HDL and lower triglycerides. Under normal conditions, Aerobic exercises do not reduce LDL. However, when combined with dietary changes and well-monitored weight loss the combined effect could lower LDL.
Under the standard conditions, the recommended exercise per week is 150 minutes of mild exercises or 75 minutes of vigorous exercise per week.
Therefore, when calculated per week this would be an average of 20 minutes of exercise per day.
Biking, walking, Gardening, and water aerobic are practical examples of mild or moderate exercises that could boost HDL. However, Aerobic dancing, jogging, and rope jumping are examples of vigorous exercises which when combined with dieting and weight losses leads to a lowering of LDL.
Name three important needs for water
Answer:
for living beings to drink, to grow crops, a place for living for fishes and such
Answer:
For us to drink so we can survive, for fish to swim liek lakes and stuff , and so crops can grow
Explanation:
Why do you think the H-bonds only last a short time before breaking and reforming?
Answer: The room temperature thermal energy is about 2.5 KJ/mol, where areas hydrogen bond energy is in the range of 6-15 KJ/mol. So it must not only for thermal fluctuations. (please be specific with reference)
Explanation:
define bicarpellary
Answer: adjective. Botany (of an ovary) having two carpells.
14. Alex writes down his car racing times for each day.
Mon – 5hr Tue – 1hr
Wed –2hr Thu – 6hr Fri – No drive.
He drives at a constant speed of 100km/h. Work out the distance he drove each day. On which day did he drive the furthest?
Answer: One positive integer is 5 more than the other. When the reciprocal of the larger number is subtracted from the reciprocal of the smaller the result is 5/14. Find the two integers.
Example: The difference between the reciprocals of two consecutive positive odd integers is 2/15. Find the integers.
Work-Rate Problems
There are two equivalent formulas to choose from when solving work-rate problems. If two people are working together on a job then their work rates add and they can perform the job working together in a shorter amount of time. If we let = the time it takes a person to complete a task then his work rate is 1/. In other words, he can complete the 1 job in number of hours. If we let = the time it takes a second person to complete the task and = the time it takes for both people working together we get the following work-rate formulas:
Example: Bill’s garden hose can fill the pool in 12 hours. His neighbor has a hose that can fill the pool in 15 hours. How long will it take to fill the pool using both hoses?
Example: Joe can complete his yard work in 3 hours by himself. If his son helps it will only take 2 hours working together. How long would the yard work take if his son was working alone?
Example: Norm and Cliff can paint the office in 5 hours working together. Being a professional painter, Norm can paint twice as fast as Cliff. How long would it take Cliff to paint the office by himself?
Work-Rate Problem: One small water hose takes twice as long to fill the basin as the larger water hose. If the two hoses working together take 40 minutes to fill the basin how long would it have taken each hose to individually fill the basin?
Work-Rate Problem: Joe can texture and paint a room in 8 hours working alone. It would take Bill 6 hours to do the same job. How long will it take them to complete the job working together?
Work-Rate Problem: Two printers, working at the same rate, work together with printing payroll checks for 4 hours before one breaks down. The other takes 3 more hours to complete the job working alone. How long would it have taken only one printer to complete the job?
Uniform Motion Problems (Distance Problems)
We have set up uniform motion problems using the formula = *. For the following motion problems, we will need the equivalent formula / = to set up the equations.
Example: The first leg of Mary’s road trip consisted of 120 miles of traffic. When the traffic cleared, she was able to drive twice as fast for 300 miles. If the total trip took 9 hours, then for how much time was she stuck in traffic?
Example: A passenger train can travel 20 miles per hour faster than a freight train. If the passenger train can cover 390 miles at the same time it takes the freight train to cover 270 miles, how fast is each train?
Example: Billy rode his skateboard 24 miles to his grandmother’s house for the day. It was a rough ride so he borrowed his grandmother’s bicycle for the return trip. Going twice as fast on the bicycle the return trip took 2 hours less time. What was his average speed on the bicycle?
Example: Brett lives on the river 45 miles upstream from town. When the current is 2 miles per hour he can row his boat downstream to town for supplies and back in 14 hours. What is his average rowing speed in still water?
Explanation:
what is the median and mode
Answer:
Median is the average and mode is the same value
Explanation:
Describe the structure of DNA from monomer to macromolecule.
Answer:
cells
Explanation:
1: Is Water the most important molecule on
earth? Answer with : claim , evidence and reasoning
Answer:
Yes, we need it to survive, also its in air, we wouldn't be able to breath without it. But most importantly we need to drink to survive
Predict what would happen to typical animal cells placed in 0.OM and 1.0M sucrose solutions, and
explain your prediction. The animal cell molar concentration is 2.0M.
Answer:
the cells would excrete water into the extracellular solution
27 AL 3+
13 how many protons, electrons and neutrons
The graph illustrates the activity level of three common digestive enzymes, across a range of pH values. Hydrochloric acid is used by the stomach to aid in digestion and causes the stomach to have an average pH of 1.5 to 3.5. Which enzyme is likely to be active in the acidic environment of the stomach?
Answer:
Digestion starts with the sight, thought, or smell of food. When the brain anticipates an incoming meal, the vagus nerve sends a message to the stomach causing the release of acetylcholine. The binding of acetylcholine to G cells in the stomach starts the secretion of gastrin and, in combination with acetylcholine and histamine, stimulates parietal cells in the gastric glands of the stomach body to start secreting hydrochloric acid (HCl).
Explanation:
A women dissolves salt in water as she is preparing to boil noodles. The salt is:
A.) A solvent
B.) A solute
C.) A nonpolar molecule
D.) A covalently bonded molecule
Answer:
Solute is the answer maybe
In general, what is photosynthesis?
Answer:
Photosynthesis is when plants use the sun to create sugars, which are like food to the plant.
Explanation:
answer fast pls!!
All chemical equations must be balanced. This means that the same number of atoms
of each of the elements must be found in both the reactants and the products of the reaction. Which scientific law does this illustrate?
Law of Reflection
Law of Conservation of Energy
Law of Conservation of Mass
Law of Superposition
Answer:
The Law of Conservation of Mass.
Explanation:
The reasoning behind this is that when the chemical equation is balanced, so is the amount of mass. We make sure that the chemical equation is balanced to ensure that the law of conservation of mass is conserved. This is why we add coefficients to the beginning of reactants and products to make sure that the mass of the reactants combined is the same amount of mass of the products combined.
Answer:
The Law of Conservation of Mass!
Explanation:
What type of cell is pictured to the right?
Hopefully I get a quick answer...
Answer:
This cell is a prokaryotic cell
Answer:
Prokaryotic
Explanation:
It has pili, the little hair looking things, on the outside. eukaryotic cells don't have that. also, if you don't believe me, search up prokaryotic cells, click on images, and this exact picture pops up.
Compare and contrast the Mann Gulch tragedy and the Storm King tragedy. What are the similarities. What are the differences?
Answer:
hmmm is this question of bio
Explanation:
i dont think so
Answer:
The main difference between Shakespearean comedies and tragedies is the tone used to narrate the events and whether the endings are happy or sad. The comedies have a much lighter and sometimes even romantic tone. The tragedies are filled with despair and regret. Furthermore, the comedies create a jovial mood while the tragedies create a bitter mood among the audience. However, Shakespeare's comedies and tragedies have similar themes. For example, the themes of Romeo and Juliet and A Midsummer Night’s Dream are both forbidden love.
Explanation:
Will the CO2 molecules that exist today still be the CO2 molecules in a million years
Answer:
Yes
Explanation:
cause nothing is created or lost it is just cycled.
Yes, the carbon dioxide molecules existing today will be the same carbon dioxide molecules in a million years because the matter is not created or destroyed.
What is carbon dioxide?
Carbon dioxide (CO2) is a colorless gas with a sour taste and a little harsh odor. It is one of the most significant greenhouse gases associated with global warming, but it only makes up a small portion of the atmosphere on Earth (roughly 3 volumes per 10,000).
It is produced during the combustion of carbon-containing materials, fermentation, and animal respiration, as well as during the photosynthesis of carbohydrates by plants.
The so-called greenhouse effect is caused by the gas because its presence in the atmosphere prevents part of the radiant energy that Earth receives from being reflected back into space.
In the industrial setting, it is recovered for a wide range of uses from flue gases, by-products of the hydrogen-preparation process for ammonia synthesis, lime kilns, and other sources.
Therefore, the same carbon dioxide will exist in a million years as today.
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How has the development of a pine and then a hardwood forest affected populations of shrubs?
A The development of the two types of forests has negatively affected populations of shrubs by decreasing the amount of pollinators in the area.
B The development of the two types of forests has positively affected populations of shrubs by increasing the amount of water available to shrubs.
С The development of the two types of forests has negatively affected populations of shrubs by decreasing the amount of space available to shrubs.
D The development of the two types of forests has positively affected populations of shrubs by increasing the amount of sunlight in the area.
Answer: Option C.
The development of the two types of forest has negatively affected the populations of shrubs by decreasing the amount of space available for shrubs
Explanation:
The development of the two types of forest has negatively affected the populations of shrubs by decreasing the amount of space available for shrubs because pine and hardwood are huge trees bigger than shrubs and occupy space. As they occupy space the received most of the sunlight, their roots is very extensive and draw water and nutrients from the soil which makes these resources not very much available for shrubs and hence it drastically affected the populations of shrubs. Because of their heights, wideness and big leaves, little sunlight gets to shrubs and hence shrubs photosynthesis is reduced.
The removal of one seral stage to another is called ecological succession.
The place which is used by the shrubs is now used by the tree and give the competition for the land. The development of the two types of forest has negatively affected the populations of shrubs by decreasing the amount of space available for shrubs.
The development of the two types of forest has negatively affected the populations of shrubs by decreasing the amount of space available for shrubs because pine and hardwood are huge trees bigger than shrubs and occupy space.
As they occupy space they received most of the sunlight, their roots are very extensive and draw water and nutrients from the soil which makes these resources not very much available for shrubs, and hence it drastically affected the populations of shrubs.
Because of their heights, wideness, and big leaves, little sunlight gets to shrubs, and hence shrub's photosynthesis is reduced.
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What is the mass number when it is stable?
Answer:
The mass number (symbol A, from the German word Atomgewicht [atomic weight]),[1] also called atomic mass number or nucleon number, is the total number of protons and neutrons (together known as nucleons) in an atomic nucleus. It is approximately equal to the atomic (also known as isotopic) mass of the atom expressed in atomic mass units. Since protons and neutrons are both baryons, the mass number A is identical with the baryon number B as of the nucleus as of the whole atom or ion. The mass number is different for each different isotope of a chemical element. Hence, the difference between the mass number and the atomic number Z gives the number of neutrons (N) in a given nucleus: N = A − Z.[2]
The mass number is written either after the element name or as a superscript to the left of an element's symbol. For example, the most common isotope of carbon is carbon-12, or 12
C
, which has 6 protons and 6 neutrons. The full isotope symbol would also have the atomic number (Z) as a subscript to the left of the element symbol directly below the mass number: 12
6C
.[3]
1. Why is vision the most important sense in driving?
Answer:
helping you see the road, hazards, signs, and signals.
Explanation:
Please make me BRAINLIEST
Answer: If you cannot use vision while driving, many things can occur. These include; Collisions with others, driving off the road, speeding, skipping stoplights, running into pedestrains, etc. You and others may be severely injured if you drive without vision, therefore vision is the most important sense to have when driving.
Please help need this today need 10 safety’s violations
Answer:
goggles not being worn, hair not pulled back, getting off task, puddle on floor, not paying attention
Explanation:
there is five, I could not find 10, but I hope this helps.
PLEASE HELP (40 POINTS) What role might the processes of protein synthesis play in using CRISPR to modify a defective gene in an organism’s DNA? Do you think CRISPR and other forms of genetic engineering are helpful or harmful to humans?
Use what you know about protein synthesis to reflect on these questions.
Create a presentation of your ideas. Your presentation can be verbal, written, or drawn. Be sure to explain the reasoning behind your ideas. Be prepared to defend your ideas by considering a variety of different perspectives.
Answer:
That looks hard, search on google.
Explanation:
Ecological success is valuable to understand, because it can change the biodiversity within an ecological community. Being able to teach a topic to a peer can demonstrate mastery! Explain the sequence of events that occur in secondary succession as you would to a friend who had not yet learned about the process.
Answer:
Secondary succession is a process in which a given area is disturbed, being re-colonized by other organisms following this process.
Explanation:
Secondary succession steps:
1- An area suffers a disturbance (e.g., fire, flood, earthquake, etc).
2-The process of disturbance destroys the food chain by removing primary producers (e.g., plants)
3- The vegetation grows back (i.e., first grasses and after higher trees). This process is known as recolonization
The secondary succession can regenerate an ecosystem in less than 50 years after disturbance. The first species re-established during secondary succession are the animals capable of living in disturbed habitats.
Secondary succession refers to the re-grow of species and the establishment of new ones in areas where a perturbation occurred leaving fertile good soil.
---------------------------------
Succession is a term used to refer to colonization and subsequent changes.
Colonization drives the establishment of individuals, populations, species, or bigger groups in areas where they were absent before.
When talking about succession, we refer to changes produced in the composition and structure of communities after a perturbation.
When a perturbation occurs -like fires, floods, earthquakes- and removes part or all of the aerial vegetable life forms, we talk about secondary succession.
In secondary succession, after the perturbation occurrence, the soil remains good and fertile, carrying viable spores, seeds, and roots of surviving species.
With time these species emerge and re-grow, colonizing the area. Also, new species can arrive at the open space, establishing there for the first time.
So, step by step,
1) A perturbation must occur in a community.
2) The perturbation damages or eliminates aerial parts of vegetable species. But the soil, which remains fertile, managed to protect seeds, spores, and roots of the species that used to live in these areas.
3) With time, these species regrow, and new species arrive in the area.
4) A new community emerges.
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The area where two or more plates meet is called a: a.fault b.plate edge c.plate boundary d.ring of fire explain for every answer PLEASE I NEED THIS NOW IT IS DUE TODAY!!!!!!!!!!!!!!!!!!!!!!!
Answer:
I think the answer is C. Plate Boundary
Explanation:
Rabbits normally eat some grass as a food source. In a habitat, a new species of grass is introduced that out-competes most of the original species of grass. The new species of grass contains a chemical that is usually toxic and fatal to most rabbits. Assuming that all rabbits in this habitat will eat some of the new species of grass, how will the presence of the new grass most likely decrease the diversity of the rabbit population in this habitat?
Answer:
Well The Diversity will decrease.
Explanation:
If the Grass Is Toxic to the Rabbit than the rabbits will either die from eating the grass, or they will stop eating it and need to find a new food source. this will lead to the to the rabbits that are resistant to the toxic grass being able to reproduce more and therefor becoming more abundant.
