For satellites, the centripetal force for rotation is provided by the gravitational force acting on them.
What is force?In general language we can say that push or pull is called force.
According to newton second law of motion force is rate change of momentum it means
F= d/dt×(mxv)
Where m is mass and v is velocity
But in general case mass is constant.
So, Force
F= mxd/dt×(v)
Since we know that rate change of velocity is acceleration.
Then we can say that
F= mass x acceleration
S.I unit of force is Newton
1 Newton = 1kg×m/sec^2.
Force and acceleration is a physical quantity which have both i.e magnitude and direct it means both are vector quantity.
Therefore, For satellites, the centripetal force for rotation is provided by the gravitational force acting on them.
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A unicorn has 400 chromosomes in its gamete cells. How many chromosomes would be found in its regular body cells? __________
Assuming the unicorn is a diploid organism, it must have 800 chromosomes. Diploid organisms have twice chromosomes as they have in their gamete cells. Noteworthy, this chromosomes in its regular body cells (somatic cells) will not be visible, they will be diffuse in its chromatin stage. Chromosomes are only visible when the cell reproduces itself.
What is the name of this instrument called
thats a rain gauge, so it should be c
which pair of words has one bone each from the axial and appendicular skeletons
The pair of words that has each bone from axial and appendicular skeleton is: (1) cranium; femur.
Cranium is the skull bone that protects the brain from any mechanical injury. It belongs to the axial skeleton. Femur is the thigh bone, It is the thickest, strongest, and longest bone of the body. It is the part of appendicular skeleton.
Axial skeleton is the composition of bones that make up the core of the body. There are a total of 80 bones in the axial skeleton. This includes the bones of the skull, ear, neck, back, and the ribcage. Whereas the appendicular skeleton comprises the bones of the hands and legs.
The question in incomplete, the complete question is:
Which pair of words has one bone each from the axial and appendicular skeletons?
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What chemical are destroying the ozone layer? Where is this destruction most visible?
Chlorine and bromine atoms in the stratosphere react with ozone molecules to destroy them.
One chlorine atom has the ability to obliterate more than 100,000 ozone molecules before it is removed from the stratosphere. Over Antarctica and in the polar regions is where the thinning is most obvious.
A number of chemicals release chlorine or bromine when they are subjected to the intense UV radiation prevalent in the stratosphere. Because they contribute to the ozone hole, these pollutants are known as ozone-depleting ones (ODS). ODS that creates chlorine include methyl chloroform, carbon tetrachloride, hydrochlorofluorocarbons (HCFCs), and chlorofluorocarbons (CFCs). ODS, that release bromine include halon and methyl bromide. ODS is created at the surface of the Earth, but it can take them up to five years to ascend to the stratosphere.
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Which of these wavelengths of light, if missing, would prevent the most efficient capture of energy for
photosynthesis?
orange
violet
green
yellow
Green wavelengths of light the most efficient capture of energy for photosynthesis.
How does photosynthesis take place?Light energy is used in oxygenic photosynthesis to convert water (H2O) absorbed by plant roots into CO2 and generate carbohydrates. In this process, the water is "oxidized," or loses electrons, while the CO2 is "reduced," or gains electrons. Carbohydrates are generated along with oxygen.
What makes photosynthesis so important?It is important because photosynthesis is the process through which plants use sunlight to change carbon dioxide into oxygen. For living, animals need oxygen, while plants clean the air by eliminating harmful carbon dioxide. Photosynthesis is an endothermic reaction.
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When tomatoes are fully ripe, they develop bright red skins. William recently built a garden and decided to investigate tomato reproduction. He found that green tomatoes (not fully ripe) have an 18% chance of germinating while red tomatoes (fully ripe) have a 78% chance of germinating.Based on the data provided from the investigation, explain what characteristic(s) contributes to the probability of the tomatoes reproductive success and what factors (genetic or environmental) might impact the growth and development of the tomatoes. answer should be based on Claim:Evidence:Reasoning:
Environmental factors-Sunlight,Proper temperature,Moisture ,Air and nutrients.
This effect the growth of plant.When the plant get enough of all these factors,they grow well.Same in the case of more ripe red tomato.
Genetics-When a plant contain that DNA which contains the gene more strongly which can pass from one generation to another more easily,these are called as more strong gene or dominant gene.
So,the ripe plant have more these strong genes,so they are more grown.
Claim-The plant which getting better environmental and genetic factor are grown better.
Evidence-Based on the question and information given,the unripe plant grows lesser as compared to ripe plants.So,we have to find the evidence for these.
Reasoning-The main reason is genetics,is the presence of Strong gene/Dominant gene .
Environmental factor-Which affects a lot the growth of plant,which are explained above.
Complete your scientific explanation for the question:
How did the UCSD population become bolder than the mountain population over the last 60 years?
**REMEBER: Use CER (Claim-Evidence-Reasoning). Use a minimum of 3 pieces of evidence.
**Use the information from your table you created in the lesson to help you answer the prompt.
C= 3 points
E= 3 points for each piece of evidence
R=3 points
Total 15 points
Since both populations descended from the same progenitor, natural selection led to them becoming bolder. The other juncos got the behavior, such as boldness having lower levels of CORT, from the ancestor who was at UCSD and stayed there. This ancestor had differences in their heritable features.
What is scientific explanation?
a description of a situation, action, or idea that uses a pre-existing body of knowledge from science as the basis for its premises. The typical explanations include ontogenic, which links the phenomenon to a universal set of developmental stages, reductionistic, which describes a phenomenon in terms of the conditions that have been observed to produce it, empiricistic, which describes a phenomenon in terms of the conditions that have been observed to produce it, and metaphoric or categorical, which links a phenomenon to other phenomena that are already understood and similar to it in some significant ways. A theory is what is commonly referred to as such a systematic explanation.
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What term refers to the growth and/or elongation of some cells but not others?
a.
growth changes
b.
cell lengthening
c.
divergent growth
d.
differential growth
Growth changes refers to the growth and/or elongation of some cells but not others.
The correct option is A.
How is a cell defined?A cell is a collection of cytoplasm that is held together on outside by a cell membrane. Cells are the fundamental structural units of living matter and make up all living things. They are usually tiny in size. Numerous organelles, including one or more nucleus, are present for most cells and perform a range of functions.
What is cell function?They give the body structure, absorb nutrients from meals, turn those into energy, and perform certain tasks. Additionally, cells are able to replicate themselves and carry the body's genetic material.
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Which of the following cells do not kill cells directly?
In order to digest a particle, the cell engulfs it and secretes digestive enzymes. Phagocytosis is the name of this process.
The protective cell in our body is called a white blood cell. They protect the body against invading infectious agents or disease-causing bacteria because they are present in the blood. According to the presence or absence of granules, WBCs are split into two groups:
(I) Granulocytes: The cytoplasm of these cells is granular. Even parasites can be killed by them. Phagocytosis is one of their functions. Neutrophils, eosinophils, and basophils make up the granulocytes.
Agranulocytes lack granules in the cytoplasm
(II). The lymphatic system contains them. They produce antibodies that help the body fight sickness. Parasites are not killed by them.
Lymphocytes and monocytes are the two types that exist.
(i) Macrophages: These immune system cells are in charge of capturing and eliminating foreign particles.
(ii) Mast cells: These are the protective cells found in our bodies that phagocytose germs. The bone marrow produces them.
(iii)RBCs are nucleated red blood cells that are present in the blood (iii). Gas transportation is their primary duty.
Therefore, the right response is (B). RBCs are not naturally phagocytic.
The macrophages that are already in our bodies are intended to serve as our body's initial line of defence. These cells identify the antigens and take them in. They reduce the foreign particles into smaller proteins, which T cells then react to.
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A world crisis has caused a paradigm shift for health disparities and social justice; what are your suggestions for positive change?
700 word essay
Determine the paradigm centerpiece you wish to change and then you can write down your goals and further cultivate the thoughts that lead towards influencing the paradigm shift are the suggestions that can influence in bringing about a positive change.
What causes a Paradigm shift?A paradigm shift may happen with as a result of a series of anomalies or some pieces of evidence that cast some doubt on the status quo, as well as from a ground-breaking innovation or a kind of discovery.
For research on health disparities, the mantras of translational, transdisciplinary, and transformational research have the potential to change the game.
We now have a better grasp of the health disparities among racial, ethnic, and low socioeconomic level groups as a result of a wealth of study findings employing these three methodologies.
When combined, these diverse but linked research fields have distinctive contexts that can advance the study of health inequalities.
The National Institutes of Health (NIH) is the main federal organization in charge of carrying out and funding biomedical research that aims to enhance well-being and prolong lives.
Reducing socioeconomic and racial/ethnic disparities in health was deemed a top priority for public health practice and research by the NIH in 1999.
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here are four steps in solving one’s personal financial challenges: 1. considering opportunity costs 2. assessing risks and returns 3. setting short- and long-term goals 4. assessing needs and wants Which of these is the correct order of these steps? 2, 1, 3, 4 1, 2, 3, 4 4, 1, 2, 3 4, 2, 3, 1
The correct four steps in solving one’s personal financial challenges is option 4,1,2,3.
4. assessing needs and wants.
1. considering opportunity costs.
2. assessing risks and returns.
3. setting short- and long-term goals.
Some situations that might reason financial stress consist of dropping your job or being retrenched, long time unemployment, being unable to get complete time work, incapacity to pay your bills or now not being able to deal with the growing fees of residing.
Feeling beaten down by money issues can adversely impact your sleep, and strength degrees. It may go away you feeling indignant, ashamed, or apprehensive, gas anxiety and arguments with those closest to you, exacerbate pain and mood swings, or even growth your danger of despair and tension.
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Will give you brainliest ASAP
Why is diffusion considered a form of passive transport?
Responses
A It has no effect on the health of the cell.
B It's carried out while the cell does other things.
C It's a process that occurs automatically.
D It requires no energy from the cell.
Answer:
D It requires no energy from the cell.
Explanation:
The diffusion considered as a form of passive transport because it requires no energy from the cell. Thus, option D is correct.
What is diffusion?Diffusion has been known as the process in which molecules of the solvent pass via a semipermeable membrane from a lower concentrations to higher concentration or from less concentrated solution to high concentrated solution. In the process of diffusion movement of water takes place.
There are mainly three types of osmosis and these are hypertonic, hypotonic, and isotonic. The process of osmosis has been passive transport as water moves from low solute concentration to the high solute concentration.
Therefore, The diffusion considered as a form of passive transport because it requires no energy from the cell. Thus, option D is correct.
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Imagine someone asks you how much you spend per year on clothing. To give an answer, you figure you spend about $50 per month, and you calculate that to about $600 per year. What approach to problem solving did you use to provide an answer to the question?
Question 1 options:
Algorithm
Analogy
Prototype
Heuristics
The correct approach to problem solving in this question is option (1) i.e, Algorithm.
What is Algorithm?Algorithm is a common set of rules or step-wise instructions used in calculation or computation as an approach to problem solving.
Algorithm originally refers to a systematic procedure that produces—in a finite number of steps—the answer to a question or the solution of a problem.
The term is derived from the Latin translation, Algoritmi de numero Indorum, of the 9th-century Muslim mathematician al-Khwarizmi’s arithmetic treatise “Al-Khwarizmi Concerning the Hindu Art of Reckoning.
Whereas, Analogy refers to comparison between one thing and another, typically employed as an approach to explanation or clarification and Prototype is preliminary sample, device or model based upon which other (higher) forms or versions are developed.
Heuristics are the mental shortcut commonly used an approach to solve or simplify problems and avoid cognitive overload based upon the information from previous experiences with similar problems.
Here, the annual expenditure on clothing can be estimated based upon the monthly clothing expenditure. If $50 per month is spent on clothing, then $600 will be spent per year according to the simple rule of multiplication, i.e, 50*12+600. Thus, an algorithm is best approach to problem solving or decision-making.
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True or FalseNatural selection goes from more to less complex over time as adaptations are weeded out through natural selection.
The statement is false
Explanation:
This is a subject that is still being debated, however I believe that:
-the theory of evolution by natural selection explains the emergence of biodiversity
!!PLEASE HELP ASAP!!
*The universe unit review practice*
Drag and drop the words into the correct locations. (2 points)
Dark |BLANK|
is the only explanation for the structures of the early universe. Clumps of it led to |BLANK| in the early universe.
Without it, the universe would
Have |BLANK|
A. Formation of galaxies B.matter
C.collapsed inward D.energy E. Remained uniform
Which correctly relate dark matter and dark energy to the Big Bang theory? Select the two correct answers (1 point)
A. Because of dark matter gravitational interactions cause galaxies to develop
B. through dark energy the universe is expanding at a faster and faster rate
C. dark energy is the source of 25% of the mass of the universe
D. without dark energy structures in the early universe would never have developed
The stars at the edges of a galaxy are rotating around the galaxy center at the same speed as the stars in the middle of the galaxy how does this provide evidence of dark matter?
A. dark matter emits light that astronomers need to see the orbital speed of the stars
B. dark matter absorbs light from outside the galaxy allowing the light of the stars in the galaxy to show the orbital speeds of the stars
C. dark matter provides the gravity that allows the stars to rotate at the same speed
D. dark matter subtracts gravity which allows the stars to rotate at the same speed
Drag and drop the words into the correct locations
Three pieces of evidence of universal expansion support the big bang theory the first piece of evidence which Edwin Hubble discovered is that ________. the use the second piece of evidence is the change in universal temperature. The temperature __________. The third piece of evidence is that cosmic microwave background radiation is found _______.
-has increased dramatically
-Has decreased dramatically
-Galaxies are moving towards each other
-Uniformly across the universe
-Galaxies are moving away from each other
Answer:A.
Explanation:
1. Analyze the food web. To which trophic level does the coyote belong? Why does it belong to that trophic level? (2 points)
Coyote belongs to the third trophic level. At the third level, the primary carnivores, or meat eaters that are the coyotes in this food chain, eat herbivores.
What is Food Web?A food web is the natural interconnection of food chains. This is a graphical representation of what eats what in an ecological community. Food web is also known as the consumer-resource system
A food web consists of all the food chains in a single ecosystem where every living thing in an ecosystem is a part of this multiple food chain.
For above given information, Grass is eaten by mouse as well as Deer which is at first trophic level, Acorn is also at the first trophic level which is eaten by mouse, squirrel and deer who is at second trophic level further all these three is eaten by Coyote who is at third trophic level which is eaten by Cougar who is at fourth trophic level i.e . highest trophic level while Cougar also eats deer in that food chain Cougar is at third trophic level.
Thus, Coyote belongs to the third trophic level. At the third level, the primary carnivores, or meat eaters that are the coyotes in this food chain, eat herbivores.
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Which of these early conservationists was a professor at the University of Maryland?
Hint: They taught marine biology.
A
Aldo Leopold
B
Rachel Carson
C
John Muir
D
Rosalie Edge
Answer:
Rachel Carson
Explanation:
Rachel Louise Carson was an American marine biologist, writer, and conservationist who is credited with advancing the global environmental movement through her influential book Silent Spring and other writings.
Hope this helps!
1. Which category of gymnosperms are thought to have given rise to modern-day flowering plants?A. gnetophytesB. ginkgoC. conifersD. Cycads
There are for modern groups of gymnosperms today (Coniferophyta, Cucadophyta, Gingkophyta, and Gnetpphyta), being the gymnosperm group that is proposed to be closer to the angiosperms the Gnetophyta (a), being considered that they evolved from Gnetophytes (a) about 150 million years ago.
Answer:
A. gnetophytes
Explanation:
2. I have
involvement in the
immune system
(ex: antibodies).
Proteins have an involvement in the immune system. They work as anti bodies. Antibodies are itself predominantly made of proteins.
Proteins called antibodies defend you when your body comes into contact with an unwelcome chemical. Antibodies, which are made by your immune system, bind to these foreign chemicals and drive them out of your body.
Immune system proteins are primarily composed of antibodies (immunoglobulins), complement proteins, and cytokines, a class of hormones that facilitate communication between immune system cells.
How do antibodies work?
Antibodies support immunity in three ways:
by attaching to infections and neutralizing them (neutralization); by encouraging macrophages and other cells to remove pathogens by coating them (opsonization); and by inducing other immune responses including the complement system to cause pathogen death.The complement system initiates a protracted chain of protein synthesises that either opsonize a pathogen for phagocytosis or directly lyse it by producing a membrane assault complex. A macrophage, neutrophil, or natural killer cell expresses the Fc receptor tail during opsonization. The immune cell will then attach to the Fc tail of the antibody rather than the pathogen itself, hastening the process of locating pathogens for phagocytization.
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write an equation for y-=-5(x+1) in slope- intercept form
The equation of a y = -5 ( x + 1 ) line in the slope intercept form is y = (-5)x + (-5).
The equation of line in the slope intercept form can be written as,
y = mx + c
Here m = slope of line and c = intercept
As per the question we are provided with the equation mentioned below,
y = -5 ( x + 1 )
We need to write this equation in the slope intercept form. So, to convert given equation in slope intercept form we can follow the steps written below;
y = -5 ( x + 1 )
⇒ y = -5x - 5
⇒ y = (-5)x + (-5)
Slope = m = -5
Intercept = c = -5
Thus we can write that the equation of y = -5 ( x + 1 ) line in the slope intercept form is y = (-5)x + (-5).
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2.Why do introduced species often disrupt an ecosystem?
Introduced species
Ecosystems are complex systems that are in dynamic equilibrium with constant interactions between their parts.
When a new species is introduced, new interactions will occur, generating new components of the system and also competing with the previous interactions between the species already present in the system, which normally ends up generating an imbalance in the ecosystem mentioned, i.e a disruption in it.
The figure above is an example of what type of reaction?The hydrolysis of a triglyceride.© The dehydration of a dipeptide.RH H=0dipeptideThe hydrogen bonding of two compounds of water.The dehydration of a disaccharide.
This is a type of dehydration reacto to form a dipeptide molecule
A sailor on a ship dropped a message in a bottle off the east coast of the United States. The bottle is least likely to make landfall on the...
East coast of Asia
East coast of North America
East coast of South America
West coast of Africa
(A. East coast of Asia) It should least likely to make landfall on the East coast of Asia.
Which evidence exists that endosymbiosis actually occurred? A. presence of RNA and DNAB. Plasma membrane found with cell wallC. The presence of a nucleolusD. Double membraned chloroplast
One evidence that endosymbiosis actually occured is the double membraned chloroplast.
One represents the membrane of the original prokaryotic organisms, and the outer membrane represents the vacuole of phagocytosis.
Which predator is best adapted to its environment?
a.
Predator 1
b.
Predator 2
c.
Predator 3
d.
Predator 4
Edge2020
The predator is best adapted to its environment is Predator 4 Thus, option D is correct.
What is predator?Predator is defined as the organism which has able to capture the organisms and eats the prey as well as they are known as the hetrotrophs because they depend on other for their food and eating needs.
The stage of dormancy has the stage when seed gets closed and not able to germinate as it closes its outer wall. The term hibernation has been idefined as the particular time period in which the organism hybernate himself for the period of time when the weather or the outer environment has not been safe, or fit for his survival. Generally, when it has been too much cold the birds of that particular area migrated to the place where they found suitable temperature for their survival.
Therefore, The predator is best adapted to its environment is Predator 4 Thus, option D is correct.
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Answer: It is option D
Explanation:
because it has a balanced amount of moths
Where are headwaters of San Antonio River, and what are they called
How are the NADPH and DA3P molecules made during photosynthesis similar
Both of these things are byproducts of photosynthesis. They both serve as photosynthesis's building blocks. Both of these are made from carbon dioxide.
What is photosynthesis?Photosynthesis is defined as the process through which plants convert carbon dioxide, water, and sunshine into oxygen and sugar for energy.
It is a method used by plants and other living things to change light energy into chemical energy that can then be released through cellular respiration to power the organism's activities.
The characteristics of photosynthesis are:
It is a process that only happens in plants that contain the chlorophyll, a green pigment used in food preparation. The necessary elements are sunlight, water, and oxygen, where two processes take place: one that depends on light, the other that doesn't.Thus, both of these things are byproducts of photosynthesis. They both serve as photosynthesis's building blocks. Both of these are made from carbon dioxide.
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Which of the following processes is used to amplify a small DNA sample and produce many identical copies?ооооrestriction digestgel electrophoresistransformationpolymerase chain reaction
The answer would be polymerase chain reaction (PCR).
This is a technique used to amplify pieces of DNA. It allows a single or a few copies of DNA to be replicated into many copies.
The correct answer is polymerase chain reaction (PCR).
PCR is a technique that uses a special enzyme called DNA polymerase to copy a specific segment of DNA repeatedly. PCR can produce millions of copies of a DNA fragment from a very small amount of starting material. PCR is useful for many applications, such as DNA fingerprinting, gene cloning, genetic testing, and forensic analysis.Some of the other processes mentioned in the question are:Restriction digest: a process that uses enzymes called restriction endonucleases to cut DNA molecules at specific sequences.Gel electrophoresis: a process that separates DNA fragments based on their size and charge by applying an electric current to a gel matrix.Transformation: a process that introduces foreign DNA into a cell, usually a bacterium, by using a vector such as a plasmid.
What are the functions of the different body systems and how do they interact
with each other?
Nervous System-
Digestive System-
Circulatory System-
Respiratory System-
The functions of the different body systems
Nervous System - nervous system serves as the brain and command center for your body
Digestive System - help to digest the food
Circulatory System -To provide the lungs with oxygen
Respiratory System - helps to breathe
BriefingNervous System - nervous system serves as the brain and command center for your body. Your motions, thoughts, and automatic reactions to the environment are all controlled by this system, which is located in your brain. and Other bodily functions and systems, such digestion, respiration, and sexual development, are also under its control . Your nervous system can suffer harm from illnesses, mishaps, poisons, and normal aging.
Digestive System - The liver, pancreas, and gallbladder are all components of the digestive system, which is often referred to as the GI tract or digestive tract. A lengthy, twisted tube from the mouth to the anus is the GI tract, which is made up of several hollow organs. The mouth, esophagus, stomach, small intestine, large intestine, and anus are the hollow organs that make up the gastrointestinal tract (GI tract). the pancreas, the liver, and the
Circulatory System - To provide the lungs with oxygen, the circulatory system (cardiovascular system) pumps blood from the heart to them. The heart pumps oxygenated blood through the arteries to the rest of the body. Veins bring oxygen-depleted blood back to the heart to restart circulationtion. Your circulatory system is essential for the health of your muscles, tissues, and organs.
Respiratory System - The Respiratory system is the collection of organs and tissues that facilitates breathing. Your blood vessels, lungs, and airways make up this system. The muscles that drive your lungs are a part of the respiratory system as well. Together, these elements aid in the body's oxygen circulation and waste gas elimination (including carbon dioxide).
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The primary source of energy in much of the developing world is ___.
natural gas
coal
biomass
oil
Answer:BIOMASS
Explanation:BIOMASS