Activation energy is the amount of energy that must be supplied to get a chemical reaction started.
What is Activation energy?The activation energy is the first and minimum amount of energy input that is used in the reaction to start it and later returned.It is denoted by [tex]E_{A}[/tex].
[tex]E_{A}[/tex] always has a positive value – independent of whether the reaction is endergonic or exergonic overall.
The primary source of activation energy is heat, which reactant molecules absorb from their environment. This heat energy jolts the atoms and bonds within the individual molecules, raising the likelihood that bonds will break, and speeds up the velocity of the reactant molecules, increasing the frequency and force of their encounters.
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(Will give brainliest) Why do two cities located at the same latitude and near a body of water have such different climates?
Just because towns are on the same latitude doesn't mean they will have the same climates. Different air and ocean currents make all the difference.
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If scientist would like to test the effect of pollution in a local valley, which model would be best?
a. Terrarium
b. globe
c. map
d. drawing
Answer:
Answer is A. Terrarium, :-)
In what section of Earth do earthquakes happen?
Responses
crust
crust
mantle
mantle
inner core
inner core
outer core
The Earth's crust (the outer layer of the planet) is made up of several pieces called tectonic plates and most earthquakes occur along their edges. The plates under the oceans are called oceanic plates. Plates that are not under the ocean are continental plates.
The answer is the crust.
Source: www.mtu.edu
What is the relevance of sexual selection in modern human society?
Answer:
Current consensus about the evolutionary development of the human brain accepts sexual selection as a potential contributing factor. More attractive physical traits increase in chance of success in obtaining mates.
Explanation:
Ana did an experiment to find out whether spider plants grow faster under fluorescent lighting or incandescent lighting. Under fluorescent lighting, Ana's plants grew 1.5 cm taller in two months. She gave her notes to Al, who did the same experiment with similar results.
Which term describes Al's experiment?
A. plagiarism
B. replication
C. pseudoscience
D. repetition
Answer:
B replication is correct as he is recreating the same experiment.
why is the theory of evolution a theory and not a law
10. Why is fiber an important part of a healthful human diet?
A. It is easily digested into monosaccharides, which are used for energy.
B. It may decrease the risk of certain types of cancers.
C. It increases the amount of HDL and LDL cholesterol in the body.
D. It provides essential amino acids.
E. It contains more energy, gram for gram, than any other nutrient.
it's all above I don't know which one
Which of the following are supported by the diagram below? (Check all that apply and there is more than one)
A) The objects closer to Earth (the Laboratory Reference) show Blue Shift
B) The Star and Galaxies show Red Shift relative to the laboratory sample on Earth
C) The more distant Galaxies appear to have greater velocities
D) The amount of Red Shift increases with increasing distance
A) The objects closer to Earth (the Laboratory Reference) show Blue Shift
A - True
Explanation: Blueshift refers to the light that an item emits as it is traveling toward us. Wavelengths of blue light are often closer together. The majority of blueshift light comes from things that are moving in close proximity. We may tell if an object is traveling toward or away from us by examining the blue and red shift, as in the case of the Andromeda Galaxy.
B) The Star and Galaxies show Red Shift relative to the laboratory sample on Earth
B- False
Explanation: A redshift shows how a celestial object (star, planet, or galaxy) is traveling in relation to our own motion. It enables astronomers to calculate the separation between the oldest and most remote objects in the universe.
C) The more distant Galaxies appear to have greater velocities
C- True
Explanation: As the universe expands, the galaxies get farther from each other, and the apparent velocity will appear to be larger for the more distant galaxies.
D) The amount of Red Shift increases with increasing distance
D- True
Explanation: An object's redshift increases with distance. Some extremely far-off objects may release radiation at wavelengths as high as or even higher than the ultraviolet. The light's wavelength may change by a factor of 10 due to its long distance journey and red shifting.
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According to the principle of –, you can focus on only so much at one time and therefore must focus on what is important and ignore what is not. Further, when you see a – between information you already know and new information, your brain will use that relationship to help you remember the – information more accurately at a later time.
According to the principle of Eisenhower's urgent principle, you can focus on only so much at one time and therefore must focus on what is important and ignore what is not.
What is Eisenhower's principle?
In an address to the World Council of Churches' Second Assembly in 1954, former U.S. President Dwight D. Eisenhower, paraphrasing Dr. J. Roscoe Miller, president of Northwestern University, remarked, "I have two types of problems: the urgent and the important, and the urgent are never important." This "Eisenhower Principle" is supposed to be how he structured his workload and priorities.
He knew that successful time management entails being both effective and efficient. In other words, we must devote our time to activities that are important, rather than merely those that are urgent. To do this and reduce the stress of having too many tight deadlines, we must first comprehend the following distinction:
Important actions result in us reaching our goals, whether they are professional or personal.Urgent tasks need immediate attention and are typically related to attaining the aims of others. They are frequently the ones we focus on, and they demand our attention since the repercussions of failing to deal with them are urgent.
Therefore, according to Eisenhower's principle, you can focus on only so much at one time and therefore must focus on what is important and ignore what is not.
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Which action is the best example of a living thing responding to its
environment?
A. A river flowing downhill
B. The wind blowing leaves across a field
C. A snake lying in the sun on a warm day
D. A snail producing offspring that are genetically identical
c the snake is getting warm with the suns rays therefore it is c
8. Which statement is true?
a. Animal cells need a cell plate to complete
cytokinesis.
b. Plant cells need a cell plate to complete
cytokinesis.
c. Cytokinesis is the last stage of mitosis.
d. Cytokinesis is the replication of the DNA.
e. The cell plate is produced by the endoplasmic
reticulum.
which microscope to use too see the outer structure of the plant cell wall in detail
Answer:
The scanning electron microscope.
Explanation:
how did the the Formation of the Ozone Layer influence abiotic factors
in the enviroment?
The formation of the Ozone Layer influences abiotic factors such as temperature in the environment by absorbing an important amount of UV radiation, which leads to a decrease in this factor (temperature) over the earth's surface and helps with the homeostasis in the ecosystem.
What is the Ozone Layer?The Ozone Layer is a very tiny layer in the atmosphere mainly composed of ozone (chemical formula O₃), which serves to absorb the ultraviolet radiation (UV) in the atmosphere.
UV radiation is harmful to the communities because it increases the incidence of mutations and also affects abiotic factors such as temperature.
In conclusion, the formation of the Ozone Layer influences abiotic factors such as temperature in the environment by absorbing an important amount of UV radiation, which leads to a decrease in this factor (temperature) over the earth's surface and helps with the homeostasis in the ecosystem.
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Write a sentence explaining the connection among each group of words. Gametes, egg cell, sperm cell
An organism's reproductive cells are called gametes. They’re additionally known as sex cells. Male gametes are mentioned as sperm, whereas female gametes are mentioned as ova or egg cells. Each haploid cell that creates up a gamete has one copy of each chromosome. A male's sperm and a female's egg each contribute one chromosome to the process of reproduction. The chromosome that the male father provides determines the biological sex (male or female) of the kid.
A gamete is an animal or plant germ cell. Animals' male and feminine gametes are referred to as sperm and ova, respectively. Each ova and sperm carries one copy of each chromosome, making them haploid cells. A sperm and an ovum combine during fertilization to create a fresh diploid creature. A gamete may be a female or male sperm or an egg cell, to place it simply (male gamete). In mammals, sperm and ova develop within the male testes and female ovaries, respectively.
Gametes' sole or primary function is to perform fertilization in sexually reproducing organisms. A male gamete (sperm/spermatozoa) combines with a female gamete (egg/oocyte) during fertilization. n = 23 for people. Half of the chromosomes found in somatic cells, or the body's typical diploid cells, are found in gametes. Meiosis, a kind of cell division that cuts the number of chromosomes in a parent diploid cell in half, produces haploid gametes. The power of germ cells (GC) to divide meiotically and to reduce their genetic material by half results in the production of haploid gametes, or female oocytes and male spermatozoa, which expire genetic information from one generation to the next.
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Can somebody please help me with this?
When evaluating the validity of a scientific claim, which of the following questions should you ask about the person making the claim?
Choose one or mores
A Does the person making the claim have the appropriate background knowledge and experience in the area of
the claim?
B. Where does the funding for the person's research come from?
C. Does the person making the claim have a personal or subjective reason to support the claim?
D. What is the marital status of the person making the scientific claim?
Answer: A. The First Option.
Explanation: A Does the person making the claim have the appropriate background knowledge and experience in the area of
the claim?
A Does the person making the claim have the appropriate background knowledge and experience in the area of the claim is question should you ask about the person making the calm.
How do you calm a person?Phrases such as “that must be really hard for you” or “I understand why that would make you anxious” can be very validating and show understanding and support.
Having a chance to talk could help them feel calmer and more able to deal with their stress. Being there for them and listening without judging them can help.
Gently let them know that you think they might be having a panic attack and that you are there for them. encourage them to breathe slowly and deeply – it can help to do something structured or repetitive they can focus on, such as counting out loud.
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The table shows the mass and density of some substances density of substances mass g density of iron density of silver is the value of a less than greater than or equal to the value of p explain you ranswer
Answer:
lol
Explanation:
Put these words in order of complexity starting with "cell": Cell, organism, organ, system, tissue
Answer:
Cell, tissue organ, system, organism
Explanation:
Micro to large, you can search for digraphm explanations
Does anyone have the answers to the worksheets for the 8th grade project? The Scale Model of the Solar System? 1. what is the biggest celestial body in the solar system? 2. Which is the biggest planet? 3. Which is the smallest planet? 4. List the celestial bodies from smallest to largest based on actual size? 5. List the celestial bodies from smallest to largest based on your model. Is your list from #4 the same as this list? 6. Does your model accurately show the relative sizes of the celestial bodies? If it does not, what would you do differently to make sure that your model shows the relative sizes of the planets accurately? List your sources: Actual planet sizes: Solar System model calculator: PLEASE HELP
Answer:
UY scuti,comet,planet Jupiter etc is the biggest celestial bodies in the universe,Jupiter is the biggest planet,Mercury is the smallest planet, Mercury, Dwarf planet etc are the smallest celestial bodies as dwarf planet eg Pluto has smaller area than Russia.The largest celestial bodies are UY scuti,Jupiter,comets asteroids etc are the longest celestial bodies. Interesting facts Billions of years ago a planet called Thiva collide to Earth which forms the satellite moon.
(brainliest) Scientists conduct investigation based on their own interests; societal needs and current events do not influence the work of scientists at all. TRUE OR FALSE
Explain why
It is considered false that scientists conduct investigation based on their own interests; societal needs and current events do not influence the work of scientists at all.
What is scientific investigation?A scientific investigation is a strategy for posing questions and testing potential responses. Observations are usually the starting point for a scientific investigation.
Anecdotes frequently generate questions. Based on scientific knowledge, a hypothesis is a possible logical answer to a scientific question.
Scientists are directly influenced by societal interests and needs, and they frequently direct their research toward topics that will benefit society.
Scientists, like all professionals, have three levels of ethical responsibilities.
First, scientists must take personal responsibility for the integrity of their research, their interactions with colleagues and subordinates, and their role as representatives of their home institutions.
Thus, the given statement is false.
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How come the rock layers on the left side of the picture do not line up with the rock layers on the right side of the picture
The rock layers on the left side of the picture do not line up with the rock layers on the right side of the attached image because of a geographical phenomenon called "Fault Line and Plate Boundaries".
What is a Fault Line?
A fault is a zone of fractures or a fracture between two pieces of rock. Faults enable the blocks to move in relation to one another.
This movement can occur quickly in the case of an earthquake, or slowly in the form of creep. Faults can be as short as a few millimeters or as long as hundreds of kilometers.
What are the types of Faults?Normal, reverse, strike-slip, and oblique faulting are the four kinds of faulting.
A normal fault occurs when the rocks above the fault plane, known as the hanging wall, shift downward relative to the rocks below the fault plane, known as the footwall.
What are plate boundaries?
A plate boundary is a three-dimensional surface or zone where the velocity (speed or direction) of one lithospheric plate relative to the neighboring lithospheric plate changes significantly.
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Generally speaking, ARDS develops within a mean range of 2 hours after hospital admission
Acute respiratory distress syndrome (ARDS) is a widespread, inflammatory form of lung damage that manifests suddenly and may have several underlying causes. To lower the high mortality rate associated with ARDS, it is essential to identify it and treat it quickly.
Patients with advancing dyspnea symptoms, an escalating need for oxygen, and alveolar infiltrates on chest imaging within 6 to 72 hours following a triggering event should be suspected of having ARDS.After 6 to 72 hours (or even up to a week) have passed since the triggering event, patients frequently report dyspnea and a decline in arterial oxygen saturation.Lab tests lack specificity. With or without a left shift, a complete blood count can reflect a variety of white blood cell counts (normal, increased, or lowered) (stress response).Learn more about respiratory disorders here:
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what is the constitution we have now please help need it right now
Answer: The constitution is a historical document that spells out the rights or the government and people.
Explanation:
A true breeding plant with seeds
Answer:
this shows that orange and white are variants of the same gene
Explanation:
the other options are Incorrect because, if white was dominant the pods would be white, if both were codominant the pods would be mixed colour, and if orange was recessive then the pod would be white unless both genes were recessive
If an atom has 24 protons and 25 neutrons, what would it be called? What is the
atomic number of this atom?
Differentiate between splash and hadal zone
The splash zone is the most exposed zone while the hadal zone is the deepest part of the ocean.
What are the zones of the aquatic habitat (ocean)?The aquatic habitat is divided into different zones which is as a result of the following:
temperature, access to sunlight for photosynthesis, dissolved oxygen content, and availability of nutrients.
The zones of the ocean include the following:Sunlight zone, the Twilight zone, the Midnight zone, and the Abyssal zone.
The difference between the splash zone and the hadal zone include the following:
The splash zone is also called the sunlight zone while the hadal zone is also called the Abyssal zone.The splash zone is the topmost part of the ocean that receives most of the light while the hadal zone is the deepest partofthe ocean that receives less light.Learn more about habitat here:
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Identify the independent and dependent variable from the data table
Defining a system under study and making a model of it are tools for developing a better understanding of natural phenomena in science. Give an example of how system models are used by scientists to investigate natural and designed systems.
A systemic model is a type of synthetic illustration of a genuine sequence of events which occurs in nature.
Because it's hard to study many phenomena in nature or even other contexts without dissecting them into constituent parts.
Example, Atoms and other subatomic particles, for instance, are too tiny for humans to perceive. Because of this, scientists use a systems model to describe how they interact or how they combine to create visible matter. On a bigger scale, an engineer at an oil refinery might use a systems model that optimize the oil-refining process and reduce pollution while making the oil pure enough to be an usable fuel.
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✓ How are ecosystem boundaries imposed by
humans sometimes different from natural
boundaries?
There are artificial boundaries set up by humans to divide ecosystems, whereas natural limits are ones created by nature.
An ecosystem is a collection of both living and non-living entities and the interactions between them. Both natural and artificial ones are possible. There are two parts to any ecosystem: biotic and abiotic components. Natural ecosystems include, among others, forests, mountains, rivers, and grasslands. Human-made or Artificial Environment - When humans alter an ecosystem already in place to serve their needs or design a new ecosystem from scratch that closely resembles the natural environment, those modifications are referred to as artificial ecosystems.
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the process by which a cell engulfs a foreign particle is known as:
