Few positive particles aimed at a gold foil seemed to bounce back is the evidence that is responsible for the development of atomic model. Rutherford performed an experiment in which alpha particles are allowed to fire on the gold foil.
Some of the particles bounced back which tell us that there are heavy particles present in the center of an atom.
Most alpha particles pass through the atom which tell us that there is a lot of empty space in an atom.
There is also a slight deflection that occur due to similar charge that tells us the element which is present in the nucleus has positive charge.
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Answer:
its A the other dude who answer was doing to much
Explanation:
The sun produces energy from matter in its core through the process of
Earth science.
Answer:
Nuclear fission is right answer
hope it helped you:)
define nomenclature
In your own words, describe what Endosymbiosis means.
Answer:
An organisum that lives inside.
Explanation:
noun. a type of symbiosis in which one organism lives inside the other, the two typically behaving as a single organism. It is believed to be the means by which such organelles as mitochondria and chloroplasts arose within eukaryotic cells.
What are the six kingdoms and why are they unique?
Answer:
Plants, Animals, Eubacteria, Fungi, Archaebacteria, Protists
Each type of kingdom has a set of organisms that are different from each other, but are connected in a way that makes the whole nature in balance.
Amino acids and sugars are both required by animals to maintain their health. Without a diet
containing both of these, animals cannot survive. Amino acids are obtained by animals when
they digest -
A carbohydrates
B proteins
C nucleic acids
D lipids
Answer:
Proteins..............
Amino acids are obtained by animals when the person digest proteins. The correct option is B.
What are proteins?A protein is a found naturally, a highly complicated substance made up of amino acid residues linked together by peptide bonds.
Proteins are found in all living organisms and contain a variety of important biologically active compounds such as enzymatic reactions, hormones, and immunoglobulin.
Proteins are massive complex molecules that perform numerous important functions in the body.
They are essential for the structure, operation, and regulatory oversight of the body's tissues and organs and do the majority of the work in cells.
Protein can be found in muscle, bone, skin, hair, and virtually every other body part or tissue.
It is the building block of enzymes, which power many chemical reactions, as well as hemoglobin, which transports oxygen in your blood.
Thus, the correct option is B.
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Use the drop-down menus to identify the following statements as science or pseudoscience.
appeals to emotion.
has detailed research with reliable sources.
repeats investigations.
makes claims without valid testing.
Answer:
1. Pseudoscience
2. Science
3. Science
4. Pseudoscience
Explanation:
Use the drop-down menus to identify the following statements as science or pseudoscience appeals to emotion and to science is has detailed research with reliable sources.
What is pseudoscience?
Pseudoscience is a proposition, a locating or a device of rationalization this is supplied as technological know-how however that lacks the rigor crucial to the medical method. Pseudoscience also can be the end result of studies this is primarily based totally on defective premises, a mistaken experimental layout or horrific data.
The pseudoscience is the appeals to emotion, while that of the science is repeats investigations.
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What best describes technology? A. Government regulation of science B. The creative use of science to solve problems C. The society of humans on Earth D. The process of research
Answer:
option B is correct
Explanation:
What's the independent variable? What's the dependent variable? How many bacteria were found at 30 degrees? How many bacteria were found at 15 degrees? How many more bacteria were found at 20 degrees than 10 degrees? How many more bacteria were found at 35 degrees than 0 degrees?
Answer: Temperature is the independent variable. The number of bacteria is the dependent variable.
Explanation:
The dependent and independent variables are the two main variables of any experiment or research.
A dependent variable is one whose values depend on another variable. In a function it is usually represented by 'y'. This variable 'y' is a function of the variable 'x', which is the independent variable. An independent variable is one whose value does not depend on that of another variable.
So, the independent variable is the one that changes or is controlled to study its effects on the dependent variable. The dependent is the variable that is investigated and measured.
The independent variable is represented on the x-axis (horizontal line) of a graph, while the dependent variable is represented on the y-axis (vertical line).
In your example, the temperature is the independent variable, because it does not depend on anything and its influence can affect the number of bacteria. And it can be changed or controlled by the scientists. The number of bacteria is the dependent variable, because it depends on the temperature. Also, the number of bacteria is what it is being measured, and can not be changed by the scientists.
Carbon is transferred from the
atmosphere to organisms through
Answer:
photosynthesis process
Explanation:
carbon moves from the atmosphere to plants. In the atmosphere, carbon is attached to oxygen in a gas called carbon dioxide. Through the process of photosynthesis process, carbon dioxide is pulled from the air to produce food made from carbon for plant growth.
1. How can you explain the existence on complex life on Earth knowing that all energy dissipates
and seeks equilibrium, including atoms and molecules?
Answer:
yes i do know its up top on the notch
Explanation:
August 26, 2003 Hurricane Katrena devastated New Orleans. August 26, 2020 Hurricane Laura bears down on the Gulf Coast.
What effect does atmospheric carbon dioxide have on the water cycle?
What's the answer for this question?
Answer:
cell wall
cell membrane
cytoplasm
nuclear membrane
Explanation:
answers according to the order ABCD
any help pls just with number 1 tho
All of them. Forests are considered natrual enviornment and people/buildings are man-made environment
sorry for bad spelling
Which is the result of a seasonal change?
A. Forests shrinking due to fire
B. A kitten growing up to be a cat
O C. Grass dying from pollution
D. Birds migrating south
Answer:
My answer to the question is "birds migrating south".
What type of technology takes scientists to depths they cannot reach by any other means?
Answer:
Scientific drilling
Explanation:
Like proves sent into outer space, scientific drilling is a technology used to obtain samples from places that people cannot reach.
3. Think about what you would want to know about dinosaurs to support an
explanation for their extinction. Write 3 or 4 questions that you would ask in search
of clues
Answer:
Everyone has many questions regarding the extinction of dinosaurs. Some of the questions that can support an explanation for their extinction are as follows:
What were the environmental conditions responsible for the extinction of dinosaurs?How did dinosaurs get extinct even having vast variation in the species?Why did not dinosaurs able to follow Mendel's law of adaptation?How did people found about the dinosaurs as they were already extinct?A student wants to create a liquid volcano. The student observes bubbles in the soft drink prior to opening it. The student first proceeds to open the soft drink bottle and place it on the floor. Next the student drops candy tablets into the drink using a rolled piece of paper, so that the tablets are able to fall into the drink continuously. The student notices a very powerful reaction as the drink fizzes and starts to bubble.
In this scenario, what would be the catalyst?
1.)
2.)The candy tablets being added to the drink. The gasses being released when the drink was first opened.
3.)The piece of paper being placed over the soft drink. The container that holds the liquid.
Answer:
candy tablets being added
Explanation:
The candy tablets being added to the drink would be the catalyst.
WHAT IS A CATALYST:
A catalyst is a substance that speeds up the rate of a chemical reaction. This is done by lowering the energy needed for the reaction to kickstart called activation energy.Catalyst makes chemical reactions proceed faster than usual. In this case, a student who wants to make a liquid volcano notices bubbling in a sealed drink bottle. She then opens it and began to add candy tablets using a rolled piece of paper. She notices that a very powerful reaction occured as she constantly puts the candy tablets in the drink. This suggests that the catalyst of this reaction in the drink is the CANDY TABLETS.Learn more: https://brainly.com/question/1565029?referrer=searchResults
Based on the literature, you hypothesize that students in traditional biology lectures will have the same grades as students in online biology lectures. You decide to test your hypothesis by comparing grades of students in traditional and online biology lectures over a semester. As a result of the experiment, you observe that the grades in the traditional lectures and the grades in the online lectures are not significantly different. What do these observations allow you to do
Answer:
See the answer below
Explanation:
The observation allows one to make a conclusion based on the hypothesis.
From the observation that the grades in the traditional lectures are significantly different from the grades in the online lectures, the hypothesis that students in traditional biology lectures will have the same grades as students in online biology lectures would be rejected.
The observation of the significant difference, thus, helps to reject the initial hypothesis, also known as the null hypothesis.
You are
advised to wear mask,
hand
sanitizer
& follow social
distancing. Why? give reason in long answer
Answer:
To avoid contracting a newly occurring virus known as corona virus
Explanation:
this virus has killed millions of people and has no cure
Answer:
to avoid being a victim of Corona virus which has killed millions
Jello gelatin is made using the property of
A)Adhesion
B)Cohesion
Answer:
I think its A. Adhesion
Answer:
Cohesion
Explanation:
All of the matter that was on Earth since it first formed, is still here today, just changed and recycled throughout time.
Answer:
what is the question asking? like a true or false?
Explanation:
A bird watcher sees an unusual bird at a feeder. He
takes careful notes on the bird's color, shape and
other physical features, and then goes to a reference
book to see if he can identify the species. What aspect
of scientific thinking is MOST apparent in this
situation?
Answer:
he takes careful notes on the bird's color, shape and
other physical features
Explanation:
Provide two examples of mechatronic systems that you encounter in your everyday environment or that interest you. for each system, identify any/all:
a.sensors
b.actuation
c.electronics/computation elements
Answer:
1. Air conditioner
2. Washing/drying machine
Explanation:
1. Mechatronic System: The air conditioner:
Sensors: Thermometers
Actuation: Motors used to move the vanes that guide the air out of the vent.
Electronics/computation elements: Microprocessor used to process information from the sensors
2. Mechatronic System: Washing/ drying machine
Sensors: Thermometers
Actuation: Motors used to turn the washing drum
Electronics/computation elements: Microprocessor used to process the wash time and control the drum
Match the description to the word :)
Protons+neutrons in the nucleus atom
A:proton
B:Atomic mass
C: neutron
D: Electron
E:Atomic Number
The neutrally charged element in the nucleus of an atom
A:proton
B:Atomic mass
C: neutron
D: Electron
E:Atomic Number
Answer:
B
C
Explanation:
p+n is mass number
neutron has 0 charge
"A testcross involves an individual exhibiting the dominant phenotype but an unknown genotype being crossed with an individual that has a(n) ___________ genotype."
Answer:
The correct answer is - h(omo)zygous recessive
Explanation:
When a cross between the organism with dominant phenotype, that can be heterozygous genotype or h(omo)zygous genotype, with a organism of h(omo)zygous recessive takes place, the cross known as test cross.
Test cross always exhibit an individual with the dominant phenotype. he aim of test cross is to find if the dominant individual is h(omo)zygous or heterozygous.
Thus, the correct answer is - h(omo)zygous recessive.
How many cells are needed to qualify something as a living thing?
Answer:
1 just one
Explanation:
single celled living things include bacteria, certain species of algae and fungi, amoebas, slime molds, and paramecia.
Answer:
A living thing can be composed of either one or many cell.
Explanation:
Which of the following is an example of an enzyme?
Carbohydrates
O Proteins
O Lipids
O Nucleic acids
Answer -proteins
Any of a set of enzymes that divide proteins into shorter pieces (peptides), and subsequently into their constituent amino acids, is known as a proteolytic enzyme. Thus, option B is correct.
What is role of enzymes as a protein?Enzymes are proteins that interact with substrate molecules to stabilize the transition state and lower the activation energy required for a chemical reaction to occur.
Through stability, reaction rates accelerate and reach physiologically important rates.
Proteins called enzymes are made up of amino acids connected by one or more polypeptide chains.
The fundamental structure of a polypeptide chain refers to this arrangement of amino acids. The three-dimensional structure of the enzyme, including the geometry of the active site, is then determined by this.
Therefore, Proteins are an example of an enzyme.
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Your friend's little brother ate raw cookie dough made with eggs. The next day he had diarrhea, abdominal cramps, and fever. He was sick for almost a week. What type of bacteria do you think infected him
Answer:
Explanation:
The symptoms of Salmonella infections typically appear 6 hours to 6 days after eating a contaminated food. Symptoms typically include diarrhea, fever, and stomach cramps. In most cases, illness lasts 4 to 7 days and people recover without antibiotics.
Answer: Salmonella
Explanation: Eating raw eggs can give you Salmonella according to the CDC, every 1 out of 20,000 eggs are contaminated with salmonella
A patient is having an issue absorbing sugars from the fruit in their diet, the doctor thinks they may have an issue producing enzymes which break down the sugars. What would be a good way of testing this hypothesis? Question 15 options: Increase their carbohydrate intake Remove all protein from the patients diet Put them on a low fat diet Provide the patient with an enzyme supplement.
Answer: Provide the patient with an enzyme supplement
Explanation:
All of the following are reasons why is copper (Cu) so widely sought
after EXCEPT: *
A. Used for/in a lot of things
B. Highly conductive
C. Has the ability to turn into gold
D. Antibacterial properties