Answer:
If surface type affects friction, then cars on concrete will skid slower than cars on ice.
Explanation:
This answer choice addresses both the independent and dependent variables. Surface type is the Independent variable, and the dependent variable is the speed the car skids.
hope this helped!
If surface type affects friction, then cars on concrete will skid slower than cars on ice. This statement is correct and the correct hypothesis.
What is a scientific hypothesis?
A scientific hypothesis is a theory that offers a speculative explanation for a phenomenon or a specific group of related events that have been observed in the natural world. The capacity to be supported or disproven by observation and experimentation are the two main characteristics of a scientific hypothesis, and they are embodied in an "If...then" statement that summarises the notion.
In the middle of the 20th century, British philosopher Karl Popper, who was of Austrian descent, established the idea that a scientific theory might be both falsified and tested.
The scientific method, the strategy used by scientists to try to comprehend and evaluate theories regarding natural events, includes the formation and testing of hypotheses. The process of developing a hypothesis is commonly referred to as creative and is based on prior scientific understanding, intuition, or experience.
Therefore, the correct hypothesis is the statement, that if surface type affects friction, then cars on concrete will skid slower than cars on ice.
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Why is water called universal solvent?
Water is called a universal solvent because it can act as a solvent in many
different solutions.
Water comprises of the elements Hydrogen and Oxygen and is very
important which is why it is a compound which is commonly present
everywhere across the earth.
Water is a solvent and has the ability to dissolve different types of solutes
and solutions as a result of its high polarity. The substances must however
be polar too in order for this to take place as water doesn't act as a solvent in
non-polar substances.
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Which of the following statements best describes the relationship between genes and DNA?
A
Genes are regions in the DNA that code for important products, such as proteins.
B
Genes are made up of proteins, which provide instructions for making DNA.
C
Genes are made up of multiple protein-encoding DNA molecules.
Answer:
A
Explanation:
Genes are composed of DNA arranged on chromosomes. Some genes encode structural or regulatory RNAs. Other genes encode proteins. Replication copies DNA; transcription uses DNA to make complementary RNAs; translation uses mRNAs to make proteins
Relationship between Genes and deoxyribonucleic acid are that - Genes are created of Proteins, which give directions for creating deoxyribonucleic acid.
What is DNA?DNA stands for Deoxyribonucleic acid that may be a chemical compound composed of 2 polynucleotide chains that coil around one another to create a spiral carrying genetic directions for the event, functioning, growth and replica of all renowned organisms and plenty of viruses.
DNA is the hereditary material in humans and most different organisms. Nearly each cell in every person’s body has an equivalent deoxyribonucleic acid.
DNA was discovered by famous Scientist Watson and Crick in the year 1950.
Most deoxyribonucleic acid is found within the nucleus (where it's known as nuclear DNA), however a tiny low quantity of deoxyribonucleic acid can even be found within the mitochondria (where it's known as mitochondrial deoxyribonucleic acid or mtDNA).
The information in deoxyribonucleic acid is hold on as a code created of four chemical bases: Adenosine (A), Guanine (G), Cytosine (C), and Thiamine (T).
Human DNA consists of about 3 billion bases, and more than 99 percent of those bases are the same in all people. The order, or sequence, of these bases determines the information available for building and maintaining an organism.
DNA bases combine up with one another, A with T and C with G, to create units known as base pairs. Every base is additionally hooked up to a sugar molecule and a phosphate molecule.
Together, a base, sugar, and phosphate are known as a Nucleotides. Nucleotides are organized in 2 long strands that type a spiral known as a Double Helix .
The structure of the double helix is somewhat like a ladder, with the base pairs forming the ladder’s rungs and the sugar and phosphate molecules forming the vertical sidepieces of the ladder.
An important property of deoxyribonucleic acid is that it will replicate and create copies of itself. Every strand of deoxyribonucleic acid within the spiral will function as a pattern for duplicating the sequence of bases.
This is vital once because cells divide as a result of which every new cell must have a certain copy of the deoxyribonucleic acid within the previous cell
What is a gene?A Gene is the basic physical and purposeful unit of heredity created of deoxyribonucleic acid.
Some genes act as directions to create molecules known as proteins. However several genes don't code for proteins.
In humans, genes vary in size from a couple of hundred deoxyribonucleic acid bases to quite two million bases.
Gene is a basic unit of heredity and a sequence of nucleotides in deoxyribonucleic acid that encodes the synthesis of a factor product, either RNA or Proteins.
Genes will acquire mutations in their sequence, resulting in totally different variants, called alleles, within the population.
These alleles cypher slightly totally different variant of proteins that cause totally different composition traits.
Genes evolve because of action / survival of the fittest and genetic drift of the alleles.
An endeavor known as the Human order Project, that worked to see the sequence of the human order and determine the genes that it contains, calculable that humans have between 20,000 and 25,000 genes.
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what is irrigation ??
Answer:
Irrigation is the artificial process of applying controlled amounts of water to land to assist in the production of crops, but also to grow landscape plants and lawns, where it may be known as watering.
Answer:
Irrigation is the artificial application of water to the soil through various systems of tubes, pumps, and sprays. Irrigation is usually used in areas where rainfall is irregular or dry times or drought is expected. There are many types of irrigation systems, in which water is supplied to the entire field uniformly.
Help with does 2!!!!!!!!!!!!!!!
Answer:
5)a,d,b
6)c,d,a
I think
Answer:
number 6
baby shower
birthday party
school break time
2. Our kidneys could not function without____
3. Water____
when it freezes.
4. Water resists changing its____
5. Many animals rely on____
of water to cool them.
Explanation:
water
solidify
state
temperature
Figure 1.20 shows part of a fungus. The photograph
was taken with an electron microscope.
Name the structure labelled A.
Answer:
the name of the structure is mycelium
Explanation:
it's made up of hyhae, the fruiting bodies and the shores
B3.05 To which group of carbohydrates does each of
these substances belong: a glucose, b starch and
c glycogen?
Why is making a prediction important in the scientific process?
Answer:
Predictions provide a reference point for the scientist. If predictions are confirmed, the scientist has supported the hypothesis. If the predictions are not supported, the hypothesis is falsified. Either way, the scientist has increased knowledge of the process being studied.
Which selection from the article is BEST illustrated by Image 1?
Answer:
Image 1
Explanation:
As you can see there is nothing to look at therefore it is image one
For a total magnification of 100x, what eyepiece and objective would be used?
5X eyepiece with a 100x objective
15x eyepiece with a 4x objective
10x eyepiece with a 100x objective
10x eyepiece with a 10x objective
Answer:The telescope’s focal length (for example, 1200mm) The eyepiece’s focal length (for example, 25mm) To find the magnification, we’ll simply divide the numbers: 1200mm / 25mm = 48x magnification
Explanation:
A truck start to move from rest.If is acceleration by 2m/s/s calculate the final velocity of 20 second.
Explanation:
v2 = v1 + at
v1 = 0
a = 2m/s
t = 20
v2 = 2 ×20 = 40 m/s
Cells are made of organelles, specialized structures that each perform specific functions that help the cell maintain homeostasis. This is much like the body systems work together to help the body maintain homeostasis. Consider the function of the nervous system. Which organelle is most similar in function?
Answer:
Organelles serve specific functions to keep a cell alive.
Explanation:
Organelles are specialized structures that perform various jobs inside cells. The term literally means “little organs.” In the same way organs, such as the heart, liver, stomach, and kidneys, serve specific functions to keep an organism alive, organelles serve specific functions to keep a cell alive.
Answer: D i just took the test
Explanation:
PLS HELP!!!
Cells are capable of reproducing themselves by cell division. For single celled organisms, cell division is essentially reproduction. For multicellular organisms, division is necessary for growth and renewal. Even though cell division is natural and necessary, what happens when the rate of cell division becomes too rapid and out of control? How can we get rid of such rapidly dividing cells in the human body?
Answer:
Here are 5 important things you should know about cancer cells:
1. Everyone has cancer cells in their body. These cells are not detected in routine tests until they have multiplied and grown to billions of cells.
2. Cancer cells are present in the body about 6-10 times in a person's lifetime.
3. When the immune system is healthy, cancer cells will be destroyed, preventing tumor growth and formation.
4. When a person has cancer, it means that he or she may be suffering from severe nutritional deficiencies or due to toxic environmental factors, unhealthy lifestyles and diets.
5. An effective way to fight cancer is to starve cancer cells by not providing them with the food they need to proliferate and grow.
"3 golden rules" help kill cancer cells:
1. Diet to prevent cancer
It can be said with certainty that there is no better way to keep your immune system healthy than with a reasonable and scientific diet. So ask yourself the question "Do you really have a reasonable diet to prevent cancer?". And here are the essential suggestions.
- Increase your diet with fresh vegetables, fruits, whole grains and foods high in fiber.
Eat more antioxidant foods: The fruits below are rich in antioxidants.
In addition, all vegetables and fruits contain a lot of vitamin A (carrot, papaya, tomato, sweet potato, pumpkin), vitamin C (orange, cherry, kiwi, strawberry), vitamin E (avocado, papaya). , cashews, peanuts, sunflower seeds, almonds...) are also foods with strong antioxidant capacity to help prevent cancer.
- Increase vitamin D supplementation.
Vitamin D is a special vitamin that is more important than all other vitamins because of its "universal" effect on the body's immune system. Its biological effects are related to the expression of more than 3000 genes in the body.
In addition to the extremely important role for the musculoskeletal system, the role of vitamin D in the prevention of many cancers and infectious diseases has been scientifically proven.
More than 90% of vitamin D in the body is synthesized in the skin under sunlight. Very little is absorbed from the diet, so the daily diet cannot guarantee the full amount of vitamin D needed by the body.
A recent study by a joint research team between the 108 Central Military Hospital and the University of Tuebingen (Germany) published in the journal BMC Infectious diseases showed that about 90% of healthy people are deficient in this vitamin. plasma vitamin D concentration <30 ng/ml).
Research also shows that there is a strong association between vitamin D deficiency and liver cancer in patients infected with hepatitis B. So the simplest way to ensure that you do not have a deficiency is to take vitamin D supplements. daily dose of 10-20 (µg/day) for all ages.
- Do not eat a lot of sugar and sweets because this is a food source that helps tumor growth. Sugar, not protein, is what tumors need to grow, so people with cancer still need the protein found in meat to boost their health against cancer. However, it should be noted that you should not eat a lot of red meat but should eat chicken and fish instead of beef and pork.
2. Increase physical activity
This is the most important principle of strengthening the immune system that anyone can do. The largest study conducted by the National Cancer Institute (USA) on more than 1.4 million people found that regular physical activity reduces the risk of 13 common types of cancer in humans.
The link between physical activity and reduced risk of many types of cancer can be explained by several key mechanisms:
- Strengthen the immune system, prevent the growth and spread of infectious agents.
- Physical activities help increase metabolism, improve circulation and help transport oxygen to all organs. Cancer cells must not grow in an oxygen-rich environment because oxygen can kill cancer cells.
Lowering levels of hormones such as insulin, estrogen and growth factors are thought to be closely related to cancer formation and development.
- Control weight, prevent obesity: Obesity is a leading risk factor for many types of cancer, metabolic disorders, cardiovascular diseases... It is estimated that more than 500,000 cancers are diagnosed each year. obesity-related diagnoses.
Increased blood flow to organs such as the liver, kidneys and intestines enhances the efficient elimination of waste products and toxins that can be potential causes of cancer from the body.
o What is the 10% rule?
Macromolecules which are both hydrophobic and hydrophilic and are a major component of cell membranes are –
Answer:
Phospholipids
Explanation:
The plasma membrane's fundamental fabric is made up of a bilayer of proteins that are organised in a bilayer. Because they are amphipathic, which means they have both hydrophilic and hydrophobic areas, they are well-suited for this job.
describe the role of the liver in the assimilation of amino acids by converting them to proteins.
Explanation:
The liver is important in assimilation. For example, it converts glucose into glycogen (a complex carbohydrate used for storage) and amino acids into proteins. ... This is the removal of the nitrogen-containing part of amino acids, to form urea, followed by the release of energy from the remainder of the amino acid.
The deamination process involves the liver. This involves the release of energy from the remaining amino acid after the nitrogen-containing portion of the amino acid is removed to generate urea.
What is assimilation of amino acids in liver?Assimilation is the transport of molecules from digested food into the body's cells, where they are utilized and eventually become a part of the cells.
Extra glucose in the blood that reaches the liver is either broken down through respiration to produce energy for other uses or turned into glycogen (animal starch) for storage.
The complex proteins and carbs are broken down into glucose and amino acids during absorption. As a result, glucose is used in respiration while amino acids are obtained for the creation of new proteins.
Therefore, the role of the liver in the assimilation of amino acids by converting them to proteins.
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Which of the following is true about pure substances?
A.
A pure substance has the same chemical properties throughout.
B.
All pure substances are unable to be separated by any means.
C.
A pure substance can only be made up of one kind of atom.
D.
A pure substance can always be separated by physical means.
Answer:
pretty sure its B
Explanation:
Answer: A
Explanation:
The attraction among molecules of different substances is called
A) cohesion
B) adhesion
C)specific heat
D)surface tension
Answer:
B is the correct answer!
Explanation:
The force of cohesion is defined as the force of attraction between molecules of the same substance. The force of adhesion is defined as the force of attraction between different substances, such as glass and water.
how do i find out the eyepiece magnification?
Answer:To calculate the magnification, we just need two numbers:
The telescope’s focal length (for example, 1200mm)
The eyepiece’s focal length (for example, 25mm)
Explanation:
first to answer correctly gets a brainly.
Answer:
8) possible genotypes
DD: 0%
Dd: 50%
dd: 50%
possible phenotypes
deaf pups 50%
hearing pups 50%
When a substance readily forms hydrogen bonds with water, it can dissolve in water and is referred to as
When a substance readily forms hydrogen bonds with water, it can dissolve in water and is referred to as hydrophilic.
What is a hydrophilic substance?A hydrophilic substance is any object whose molecules are able to form chemical bonds with water molecules.
Solutes that are hydrophilic substances include, among others, glucose, aminoacids, cellulose, etc.
In conclusion, a substance that forms hydrogen bonds with water is hydrophilic.
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Which option is the best action for the forest surveyors to take in the following scenario?
A group of forest surveyors discovers a section of a forest that is dying. They check the trees and discover that a strain of disease has caused them to die. Even though the saplings look like they are dying, they discover that the saplings and plants on the ground are not diseased, just malnourished.
The surveyors hire a group of loggers to bulldoze the entire section of forest and let the forest regrow as it naturally would.
The surveyors hire a group of loggers to bulldoze the entire section of forest and let the forest regrow as it naturally would.
The surveyors decide to leave the area in its current condition, which will allow the forest to handle the tree disease as it naturally would.
The surveyors decide to leave the area in its current condition, which will allow the forest to handle the tree disease as it naturally would.
The surveyors hire a group of loggers to cut down the diseased trees in order to allow the plants and saplings to receive light and nutrients.
The surveyors hire a group of loggers to cut down the diseased trees in order to allow the plants and saplings to receive light and nutrients.
The surveyors decide to cut down all the plants and construct new buildings on the land rather than regrow in a diseased area.
Answer: Its C
Explanation:
All-natural disasters can be predicted. True or False?
Answer:
False
Explanation:
Because scientist cannot predict like earthquake, volcanic eruption exactly when and how.
help is appreciated
Answer:
C
Explanation:
They are to decompose organic compounds into reusable organic compounds
If there weren't any primary consumers then the populations of producers would increase
Assume that a student is given two models of bacteria, with one model consisting of big bacteria and the other consisting of small bacteria. How can the student demonstrate the theory of endosymbiosis using the models?
Answer:
37
Explanation: it is right
The variety of organisms within an ecosystem is characteristic of which type of diversity?
Genetic diversity
Ecosystem diversity
Species diversity
Regional diversity
Answer:
Genetic diversity
Explanation:
The answer is the first one hope this helps
HELP!!! TIMED TEST!!! The chart shows four articles read by the students in a science class. Which claim has the greatest support?
A The Journal of Health: smoking can cause adverse effects on the lungs
B The Daily News: Vitamin supplements help increase food absorption
C and D look untrustworthy.
Answer:
this is the answer
Explanation:
B The Daily News: Los suplementos vitamínicos ayudan a aumentar la absorción de alimentos
What is a scotobacteria
Answer:
scotobacteria (non- photosynthetic, now the Proteobacteria and other gram negative nonphotosynthetic types can exhibit.
Explanation:
b. What might be the purpose of this structure (flagellum)?
Answer:
Flagellum, plural flagella, hair like structure that acts primarily as an organelle of locomotion in the cells of many living organisms. Flagella, characteristic of the protozoan group Mastigophora, also occur on the gametes of algae, fungi, mosses, slime molds, and animals.
Explanation:
Answer:
Flagellum, plural flagella, hairlike structure that acts primarily as an organelle of locomotion in the cells of many living organisms. Flagella, characteristic of the protozoan group Mastigophora, also occur on the gametes of algae, fungi, mosses, slime molds, and animals.
Salt dissolves in water because?
At the molecular level, salt dissolves in water due to electrical charges and due to the fact that both water and salt compounds are polar, with positive and negative charges on opposite sides in the molecule. ... Water molecules pull the sodium and chloride ions apart, breaking the ionic bond that held them together.
