Answer:
About 5 billion years ago
Sorry:
Sorry this is so late.
Answer:
C. 5 billion years ago
Explanation:
The real answer is about 4.6 billion years ago but that rounds up to 5 billion years.
Please:
May I please have Brainliest?
Glucose reaches each and every cell through the circulation of ____ .
Answer:Blood
Explanation:
Glucose reaches each and every cell through the circulation of blood, which is present in Option A as the primary function of the circulatory system, which includes the heart, blood vessels, and blood, is to transport essential nutrients.
What is blood?After food is digested and absorbed into the bloodstream, glucose is transported to cells throughout the body by the circulatory system, which consists of the blood, heart, capillaries, etc., where the heart pumps blood throughout the body via arteries, which branch into smaller vessels called arterioles and then into even smaller capillaries. The circulatory system also plays an important role in removing waste products, including carbon dioxide, from the body's tissues, so glucose has been used by cells for energy, the waste product, carbon dioxide, is transported back to the lungs, where it is exhaled.
Hence, glucose reaches each and every cell through the circulation of blood, which is present in Option A.
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The question is incomplete, complete question is below
Glucose reaches each and every cell through the circulation of ____ .
A)Blood
B)stomach
Volleyball season is right around the corner and I think I need to make sure I am healthy and I want to lose some weight. I keep seeing these commercials for Special K cereal and if you eat it for 2 weeks, you will lose 10 pounds. I want to test this idea and see if it actually works. I plan on eating whatever I want for the next two weeks and am going to track my weight every morning. Then I will eat nothing but Special K cereal, milk and water for two weeks and track my weight in the morning. What do you think my hypothesis should be? What will my variables be? Hypothesis: Independent variable: Dependent Variable:
Answer:
Hypothesis: If you eat Special K cereal for 2 weeks, you will lose 10 pounds.
Independent variable: Special K cereal.
Dependent Variable: Weight lose.
Explanation:
Hypothesis: The term "hypothesis" is determined as a testable and a precise statement of what a specific researcher or experimenter predicts would be considers as the outcome of a particular study.
Independent variable: In research, the term "independent variable" is determined as a variable that is being re-organized in an experiment or research in order to see its impact on the dependent variable. Independent variable influences the dependent variable directly.
Dependent variable: The term "dependent variable" is determined as a variable that is being measured or tested in an experiment or research by the experimenter or researcher and is directly influenced by the independent variable.
Hydra falls under what kingdom
Answer:
Animalia
Explanation:
why is carbon dioxide carry in dissolved form in the blood that oxygen
carbon dioxide is more soluble in water than oxygen and hence is mostly transported in the dissolved form in our blood. because carbon dioxide have more solubility than oxygen
2. What element is the most important found in Biomolecules?
Answer: Carbon
Explanation: Most biomolecules are organic compounds, and just four elements—oxygen, carbon, hydrogen, and nitrogen—make up 96% of the human body's mass. But many other elements, such as the various biometals, are present in small amounts, but most importantly carbon is the most important element found in Biomolecules.
Which color circle includes the peptide bond? -red -green -none of them -blue
This macromolecule is a source of short-term energy.
Answer:carbohydrates
Energy Content
As a result, your body tends to use fat to store energy over long periods of time and uses carbohydrates to store energy short-term.
Explanation:
what happens if you eat to much food
Answer:
You chunk it up.
Explanation:
Answer
Throw up
Explanation:
Ur stomach will not feel good so you will most likely throw up.
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All floods have warning signs and so disasters can be prevented. TRUE OR FALSE
Answer:
true
Explanation:
Question 3 of 10
A__ sample is taken from the entire population, without a person choosing
each person.
A. random
B. convenience
C. voluntary
O D. nonconvenience
SUBMIT
The answer is A: random
A diseased cell is no longer able to produce proteins. Which cell structure is most likely malfunctioning?
Answer:
Ribosome structure
Explanation:
Answer:
THE RIBOSOMAL RIBONUCLEIC ACID WILL MALFUNCTION
Explanation:
THE rRNA IS WHAT PODUCES THE PRITEINS
2. Rob is in charge of waxing the floor at the local mall. He wants to test a new brand
of floor wax called Squeaky Clean. Rob waxes 20 floor tiles with Squeaky Clean and
20 tiles with the original wax brand. After one week he counts the number of
scratches on the floor.
a. Independent Variable:
b. Dependent Variable:
C. Control Group:
d. Constant:
It is an independent variable. Thus option A is correct.
What are the key difference between Independent and dependent Variable ?
The variable whose values are changed by researcher to get desired outcome is called an independent variable.
The variable, by changing its values to reciprocate change in the values of the independent variable is called the dependent variable.
The independent variable is act as the experiment controller whereas, the dependent variable act as experiment measure.
An independent variable is a cause whereas the dependent variable is an effect of that cause.
we can say in a linear regression, ‘y’ denotes dependent variable while ‘x’ denotes independent variable.
An independent variable does not rely on anything, while the dependent shows the effect, due to changes in independent variable.
Thus option A is correct.
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Science rejects any hypothesis not supported by __________________________ and the results of ___________________________ experiments. what are the blanks?
Answer:
Observations; control.
Explanation:
A hypothesis is considered to be tentative or an educated guess and can be defined as a testable explanation for an observation or a scientific problem. An example of a hypothesis is saying, Corona virus is caused by the introduction of the "5G" technology.
On the other hand, a control experiment can be defined as an experiment in which a condition assumed to be a probable cause of the effect is being compared to the same situation by the scientist without involving or using the suspected condition.
Hence, science rejects any hypothesis not supported by observations and the results of control experiments.
This ultimately implies that, for any hypothesis to be acceptable in science, it must be supported by observations and the results of control experiments; this give rise to factual informations, theories and by extension solutions to problems.
A car drives 150 m to the east then backtracks 30 m to the west. Describe the mathematical operation you will use to determine the net movement of the car.
Answer:
Subtraction operation
The car's displacement is 120 m west
Explanation:
Given;
first motion of the car as 150 m east
second motion of the car as 30 m west
The mathematical operation that will be used to determine the net movement of the car is subtraction operation.
The net movement of the car is the car's displacement.
Displacement is given by;
D = final position - initial position
D = 30 m - 150 m
D = - 120 m
The negative sign is direction = west ward direction
Thus, the car's displacement = 120 m west
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Which of the following structures are present in plant cells but absent in animal cells?
Choose 1 answer:
(Choice A)
A
Cytosol
(Choice B)
B
Mitochondria
(Choice C)
C
Cell walls
(Choice D)
D
Golgi bodies
Answer:
C
Explanation:
The cell wall in only present in plant cells, not animal cells. Hence, the fact that plant cells are rectangular while animal cells are more circular.
Which statement about solar eclipses is false?
Select one:
a. They occur during the full moon phase.
b. They are rare.
c. They last only a few minutes.
d. They may be partial or total eclipses.
Check
I guess the answer is most likely b) they are rare.
solar eclipses can occur fairly often, sometimes 2-4 times a year
The statement about solar eclipses that is false is the statement that; "they occur during the full moon phase."
An eclipse is said to occur when one celestial body casts a shadow on another celestial body. A solar eclipse occurs when the moon comes in between the sun and the earth such that a shadow of the moon is cast on the earth. A solar eclipse may be partial or complete.
The statement about solar eclipses that is false is the statement that; "they occur during the full moon phase."
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When magma reaches the surface of the earth, it is called
plz help
Answer:
Lava
Explanation:
Answer:
it is called lava
Explanation:
HURRY! Michael decides to bake bread one morning. He measures ingredients, mixes them together to make a dough, and cooks the dough in an oven. As the dough cook's, Michael observes the bread rising. Which of the following is evidence of the chemical change in Michael’s bread-making process?
Answer:
The bread rising as carbon dioxide is released.
Explanation:
Just did it
The trapped carbon dioxide causes the dough to rise, evidence of a chemical change in Michael's bread-making process.
What is Fermentation?Fermentation is defined as a metabolic process that produces chemical changes in organic substrates through the action of enzymes which is narrowly defined as the extraction of energy from carbohydrates in the absence of oxygen.
Microorganisms such as bacteria and fungi have metabolic genes that allow them to produce enzymes to break down a variety of sugar metabolites.
Yeast and sugar produce carbonic gas through fermentation which is why as the yeast consumes the sugar, it produces alcohol (ethanol) and carbonic gas (carbon dioxide) as waste products, hence the carbon dioxide trapped in the dough lifts up,
Thus, the trapped carbon dioxide causes the dough to rise, evidence of a chemical change in Michael's bread-making process.
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How are the careers of an oceanographer and hydrologist similar? How are they different?
Answer:
An oceanographer is one who studies the attributes of the ocean like temperature, waves, currents and tides geology of the sea floor. And a hydrologist is one who researches the distribution, circulation and physical properties of underground and surface waters.
Answer:
An oceanographer is one who studies the attributes of the ocean like temperature, waves, currents and tides geology of the sea floor. And a hydrologist is one who researches the distribution, circulation and physical properties of underground and surface waters.
Explanation:
breaking down of food into simple soluble form in the body
What are three products of cellular respiration?
Answer:
Cellular respiration is this process in which oxygen and glucose are used to create ATP, carbon dioxide, and water. ATP, carbon dioxide, and water are all products of this process because they are what is created.
Explanation:
Part A: List the 9 characteristics of life.
Part B: Choose 3 of the characteristics of life above. Give an example of each that describes how that characteristic contributes to the organism's survival.
Answer:growth excretion, responsiveness, movement ,reproduction, growth i got six sorry i can't remember
Explanation:
What monomer makes up carbohydrates?
Answer:
Explanation:
Glycerol: Also called as glyceraldehyde. This is the three-carbon carbohydrate that has an aldehyde group in its structure. ... Erythrose: It is a 4 carbon monomer i.e a tetrose sugar. Threose: It is also 4 carbon monomer similar to erythrose in structure with a small variation. ... Ribose: It is a 5 carbon monomer.Answer:
Monomers are the building blocks of the four basic macromolecules of life- monosaccharides are the monomers of carbohydrates, amino acids are the monomers of proteins, glycerol/fatty acids are the monomers of lipids, and nucleotides are the monomers of DNA.
Explanation:
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Which specific process helps the respiratory system get rid of excess water and heat?
diffusion
inhalation
exhalation
evaporation
Answer:
It's C
Explanation:
EXHALATION
Answer:
C. exhalation
Explanation:
DNA and rna are both?
Answer:
DNA and RNA are both molecules that contain genetic information and are made up of nucleotides.
True or false? Objects in the universe are slowly moving apart as the universe
changes over time.
True
False
Answer:
True
Explanation:
The expanding universe theory was developed from the observed redshifts of celestial bodies, that the space between galaxies is expanding so that they appear to recede from us at velocities that increase with their distance
Which organic molecule is part of an enzyme?
A. fatty acid
B. nucleotide
C. amino acid
D. monosaccharide
Answer:
C
Explanation:
Proteins are organic molecule in a enzyme, but amino acids are a type of protein. The answer is C.
The diagram below shows hydrogen bonds between water molecules.
What describes each hydrogen bond?
1. An attraction between neutral ends of two molecules.
2. An attraction between the positive end of one molecule and the negative end of another molecule.
3. An attraction between positive ends of two molecules.
4. An attraction between negative ends of two molecules.
hydrogen bonds between water molecules. An attraction between the positive end of one molecule and the negative end of another molecule describes each hydrogen bond.
What are the characteristics of water ?Water is amphoteric in nature because it serve as both acid and a base, highly viscous in nature due to the presence of a force of attraction between molecules.
Water is participate in Redox reaction as it help in release of dihydrogen molecules easily, the dielectric constant is also high, form the connections with other chemical compounds known as hydrates.
The temperature below 4 degrees Celsius the water ordinarily behaves, when it is cooled further, its unusual properties of water molecule are being observed.
During cooled condition, the density of water can also slowly increases and further cooled down leads to decrease in the density of water and the expansion of matter called as the anomalous property of water.
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Do biotic and abiotic ever overlap?
Answer:
Yes
Explanation:
Soil is abiotic but in order for soil to be fertile and actually useful it needs to have biotic components in it such as organic matter
Explain how critical thinking helps scientists analyze information for accuracy and bias.
Answer:
Critical thinking requires scientists to ask questions about information they come across and assess its validity. This facet of critical thinking helps them avoid bias that originates from personal opinion and helps them distinguish information and fact from common belief.