A student is investigating the strength of electromagnets she created using batteries, wire, and nails.
She uses two different-sized nails and varies the number of coils of wire around the nail to determine how many paper clips each configuration can lift. She makes a data table of the results.
The student hypothesizes that the number of coils has a cause-and-effect relationship on the strength of the magnetic devices she made. Which would be the best way for the student to test the devices to be sure that her hypothesis is accurate?
Answers
Explanation:
You will change two variables to make different electromagnets: the number of wire coils around the nail (10 or 20) and the number of D cell batteries.
Related Questions
Which part of the nervous system is responsible for transporting information throughout the body.
Answers
Answer:
peripheral nervous system
the root of sweet potato is modified in the form of tuber why
Answers
Answer:
to store food and water so it can survive.
Explanation:
it's to store food for itself.
50 points and I will mark you a brainlest!
How does adding carbon dioxide to the ocean
affect its pH?
Provide an explanation for the results (or what should have happened) using SCIENTIFIC REASONING
Answers
Explanation:
Because of human-driven increased levels of carbon dioxide in the atmosphere, there is more CO2 dissolving into the ocean. The ocean's average pH is now around 8.1 , which is basic (or alkaline), but as the ocean continues to absorb more CO2, the pH decreases and the ocean becomes more acidic.
Which statement presents a credible and unbiased argument for selecting a particular livestock animal as a human organ donor?
(Please help, this is a practice question btw)
A. A calf is the best candidate, because a cow's gestation period most closely matches a human's (9 months/280 days), and that feels most natural.
B. A lamb is the best candidate, because sheep are less likely to be sold as a meat source and because lambs are inherently cute.
C. A piglet is the best candidate. A pig's gestation period is the briefest, so human hearts could be more quickly grown and transplanted.
D. Livestock candidates should be chosen based on the patient's preference, otherwise there could be organ rejection.
Answers
Livestock candidates should be chosen based on the patient's preference as there could be organ rejection is an unbiased argument.
What is an Unbiased argument?This type of argument shows the reader both sides and bids the reader decide.
The other options tends to support an animal which makes them biased but option D doesn't and has a credible reason which is why it's the most appropriate choice.
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Prepare your own key for the live lish in Figure 3. Use the same format as on page 15. The family names
to be used are the numbers 1, II, III, IV, and V, Your key should correctly use traits that will lead to each
lish family. To help you get started, the first statements are given. Statement I divides the five Ilsh into
two main groups, based on body shape. Next, choose another characteristic that will divide the fish not
having a tubellke body into two groups. Continue to choose characteristics that will separate a group
Into smaller groups. Write your key in the space belon.
1. A. Fish with long tubelike body
e. Fish with body shape not tubelike
Answers
My grandfather has died ( begin death)
how many types of reproduction
Answers
Answer:
Sèxual and aséxual reproduction.
Explanation:
Depending upon the formation or non-formation of gamets, reproduction is of two types sèxual and aséxual reproduction.
-TheUnknownScientist 72
How many oxygen molecules can one hemoglobin carry.
Answers
Answer:
The hemoglobin molecule has four binding sites for oxygen molecules: the iron atoms in the four heme groups. Thus, each Hb tetramer can bind four oxygen molecules.
Answer:
Oxygen binds reversibly to harem, so each hemoglobin molecule can carry up to four oxygen molecules. Hemoglobin is an allosteric protein; the binding of oxygen to one harem group increases the oxygen affinity within the remaining harem groups.
The structures of five of the compounds of glycolysis are given. Arrange the compounds in order from the start of glycolysis to the end of glycolysis
Answers
Through the glycolysis process, the glucose molecule turns into pyruvate. The correct order of structures is Glucose/Fructose-1,6-biphosphate/Glyceraldehyde 3-phosphate/1,3-diphosphate glycerate/Pyruvate.
What is glycolisis?Glycolysis is the process through which the cell partially decomposes glucose and turns it into pyruvate.
It is about a series of enzymatic reactions that take place in the cytosol and do need no oxygen to occur. So it occurs in aerobic and anaerobic respiration.
It can be divided into two phases:
1st phase produces two 3-C molecules. This step needs the energy of two ATP molecules.2nd phase produces pyruvate, two ATP, and one NADH from each 3-C molecule.To sum up, glycolysis transforms one glucose molecule (6-C) into two pyruvate molecules (3-C), four ATP, and two NADH. Since it also consumes two ATP molecules, the net product is two ATP.
Steps
1) Glucose phosphorylation by hexokinase. A phosphate group is driven from ATP to glucose, turning it into glucose-6-phosphate -G6P-
Glucose + ATP ⇔ Glucose-6-phosphate + ADP
2) Glucose-6-phosphate isomerization. The enzyme glucose-6-phosphate isomerase turns glucose-6-phosphate into fructose-6-phosphate
Glucose-6-phosphate ⇔ fructose-6-phosphate
3) Fructose-6-phosphate turns into Fructose-1,6-biphosphate. The enzyme phosphofructokinase-1 phosphorylates Fructose-6-phosphate, providing a phosphate group from ATP to the Fructose-6-phosphate molecule.
Fructose-6-phosphate + ATP ⇒ Fructose-1,6-biphosphate + ADP
4) Aldolase enzyme divides Fructose-1,6-biphosphate into phosphate dihydroxyacetone (3-C molecule) and 3-phosphate glyceraldehyde (3-C molecule).
Fructose-1,6-biphosphate ⇔ phosphate dihydroxiacetone + 3-phosphate glyceraldehide
5) Phosphate dihydroxyacetone Isomerization into glyceraldehyde 3 phosphate -G3P- by triose phosphate isomerase.
phosphate dihydroxyacetone ⇒ glyceraldehyde 3 phosphate
6) Glyceraldehyde 3-phosphate oxydation by G-3-P dehydrogenase (GAPDH or GAP). The enzyme adds a phosphate into C-1 of the molecule, turning it into 1,3-diphosphate glycerate. To do it, the enzyme reduces an NAD+ group and turns it into NADH and an H ion.
gliceraldehide 3 phosphate + NAD⁺ + P ⇒ 1,3-diphospho glycerate + NADPH + H⁺
7) 1,3-diphosphate glycerate loses a phosphate group and turns into 3-phosphoglycerate.
1,3-diphospho glycerate + ADP ⇒ 3-phosphoglycerate + ATP
8) 3-phosphoglycerate isomerization, turning it into 2-phosphoglycerate by phosphoglycerate mutase.
3-phosphoglycerate ⇒ 2-phosphoglycerate
9) Phosphoenolpyruvate production. A double bond is formed at carbon 2 where the phosphate group was attached. A water molecule is released (hydrogen of carbon 2 and the OH- group of carbon 3) from the 2-phosphoglycerate.
2-phosphoglycerate ⇒ Phosphoenolpyruvate + H₂O
10) Pyruvate dephosphorylation and ATP formation by pyruvate kinase.
Phosphoenolpyruvate + ADP ⇒ Pyruvate + ATP
The correct order of structures is:
GlucoseFructose-1,6-biphosphateGlyceraldehyde 3-phosphate1,3-diphospho glyceratePyruvateYou can learn more about glycolysis at
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The correct order of the structures from the start of glycolysis to the end of glycolysis is Glucose → Fructose-1,6-biphosphate → Glyceraldehyde 3-phosphate → 1,3-diphosphate glycerate → Pyruvate.
What do you mean by Glycolysis?Glycolysis may be defined as a process in which one molecule of glucose is partially oxidized into the two molecules of pyruvate in a series of 10 enzyme-catalyzed reactions.
The first phase of glycolysis converts a 6-carbon molecule to two 3-carbon molecules with the help of ATP. The second phase is the payoff phase where a 3-carbon molecule may transform into the same carbon molecule known as Pyruvate with the release of energy.
Therefore, it is well described above.
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In a plant with genotype Gg for pod color, what percentage of the gametes will have:
the dominant (G) allele? _________, the recessive )g) allele? _______
Answers
Answer: dominant allele will be green seeded and the ressecieve allele will be yellow seeded
Explanation:
Which term refers to all the individuals of the same species that inhabit the same area
Answers
Answer:
Population.
Explanation:
A population is a group of organisms of the same species that inhabit the same area.
How does the carbon dioxide necessary for photosynthesis enter plants? a. through their roots b. through openings in the leaves called stomata c. the plants produce their own complete supply d. none of the above please select the best answer from the choices provided a b c d
Answers
The process by which plants make their own food is called photosynthesis. The raw materials of it are carbon dioxide coming from stomata, water and sunlight.
What is stomata?Stomata is the opening for gaseous exchange and transpiration, present in epidermis of leaf.
Stomata are provided by two guard cells, which shrink and swell in order to open or close the stomatal pore respectively.
The carbon dioxide necessary for photosynthesis enter plants through these openings called stomata.
Thus, option b is correct.
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What is mechanical digestion? Describe the first stage of mechanical digestion.
Answers
Mechanical digestion means breaking down food mechanically. By chewing and tearing with teeth, food breaks down into smaller parts and no enzymes are used.
What is the first step in mechanical digestion?The complex pieces of food that are eaten have to be split into simpler particles that can be acted upon by different enzymes.
This is mechanical digestion, which starts in the mouth with chewing or mastication and continues with churning and combining actions in the stomach.
Thus, this could be the answer.
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The graph shows the world-wide percentages of pollutants entering the oceans from difference sources. What conclusions would explain the percentages of sewage and farm runoff?
Answers
The percentages of sewage and farm runoff shows that these two factors add greater amount of pollutants in the environment.
Effects of sewage and farm runoffFarms runoff is a huge source of runoff, as rainwater and irrigation drain fertilizers and pesticides into bodies of water which is the main cause of water pollution. Sewage water also have greater contribution in pollution.
So we can conclude that the percentages of sewage and farm runoff shows that these two factors add greater amount of pollutants in the environment.
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Which of the stream types had a statistically lower macroscopic invertebrate species diversity than the seasonal streams?.
Answers
Intermittent streams have a statistically lower macroscopic invertebrate species diversity than the seasonal streams.
What are Intermittent streams?Intermittent streams are ecosystems where water flow is stopped at least twice in a given period of time.
Intermittent streams exhibit biodiversity that is different from other types of streams because species can not be adapted.
Intermittent streams are ecosystems that can exhibit specific species which are not found in seasonal streams.
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Proteins that use energy from ATP hydrolysis to change the locations and compositions of nucleosomes are called ATP-dependent___complexes.
Answers
Answer:
Chromatin-remodeling
Explanation:
In eukaryotes, DNA is tightly wound into a complex called chromatin. Thanks to the process of chromatin remodeling.
Chromatin-remodeling complexes use energy from ATP hydrolysis to alter the arrangement of nucleosomes, making the DNA more accessible to other proteins.
Which of the following is TRUE of the process of meiosis?
A. It results in the number of chromosomes being reduced by half.
B. The process adds an extra twenty-first chromosome.
C. Meiosis results in two cells, each with 46 chromosomes.
Answers
Answer:
A. It results in the number of chromosomes being reduced by half.
Explanation:
In the process of meiosis, one cell is divided 2 times to form 4 daughter cells. These 4 daughter cells have half the number of chromosomes that of the parent cell.
What do you notice about each beaker?
Answers
Answer:
The less sugar added into mixture, the less volume of mixture and less inflated the balloon becomes
Explanation:
How much dna must be extracted/obtained to provide sufficient data.
Answers
The amount of DNA that must be extracted/obtained to provide data depends on the analyses to be made.
What is DNA?Deoxyribonucleic acid (DNA) is a molecule used by organisms to transmit hereditary characteristics across generations.
The linear order of nucleotides in the DNA molecule results useful for a variety of different types of studies.
For example, sequence homo-logy in certain genomic regions can tell us about the evolutionary history of an organism.
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Human muscle cells can continue to make ATP even if the cells are depleted of oxygen. Muscle cells may use an anaerobic process called .
A.photosynthesis
B.cellular respiration
C.alcoholic fermentation
D.lactic acid fermentation
Answers
What is the Cell Theory , and what is it about ?
Answers
Answer:
Basic unit of life is cells
Answer:
The Cell Theory Is a Biology Unifying Principle
Explanation:
According to the cell theory, all biological entities are made up of cells; cells are the basic unit of life, and all life originates from pre-existing life. The cell theory is now so well-established that it serves as one of biology's unifying principles.
describe the human sigestive system
Answers
Answer:
Human digestive system, the system used in the human body for the process of digestion. The human digestive system consists primarily of the digestive tract, or the series of structures and organs through which food and liquids pass during their processing into forms absorbable into the bloodstream.
Explanation:
Hope this helps!
The ______ carries urine from the kidney to the bladder, and the ______ carries urine from the bladder to the outside of the body.
Answers
The Ureter Carries urine from the kidney to the bladder, and the Urethra carries the urine to the outside
The urinary systemThe ureter carries urine from the kidney as a waste product obtained from the consumption of food and liquid substance to the bladder, which acts as a temporary storage of urine. When the bladder storage is saturated the urine is released to the outside of the body through the urethra.
Hence we can conclude that The Ureter Carries urine from the kidney to the bladder, and the Urethra takes the urine outside the body.
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what physical transformations occurred to allow for the fully aquatic life modern whales have today?
Answers
Answer:
Over time whale's descendants spent more and more time in the water and their bodies became adapted for swimming. Their front legs became flippers. A thick layer of fat called blubber replaced their fur coats to keep them warm and streamlined.Explanation:
Which portion of a neuron contains all of the organelles?.
Answers
Answer:
dendritic processes and spines
Explanation:
Hello people ~
. In animals, juvenile phase is followed by,
(a) reproductive phase
(b) senescent phase
(c) old age
(d) vegetative phase.
Answers
Answer:
(a) reproductive phase
Explanation:
The reproductive phase of an organism's life cycle is the stage at which it reaches reproductive maturity and is able to produce gametes and mate. Certain hormonal changes characterise this stage.
I am joyous to assist you at any time.
Answer:
Reproductive phase
Explanation:
Juvenile phase is followed by reproductive phase
In this phase the animals get the capability to reproduceThey start producing male and female gematesWhere are the muscles that allow the fingers to bend or straighten?
A.In the forearm
B. In the upper arm
C. In the hand
Can somebody help me me !!!
Answers
Because it has to retract
The ________ helps keep food between the grinding surfaces of the teeth during chewing.
Answers
How long does a koala joey stay in its mom’s pouch after birth?.
Answers
Answer:
Six months :D
Explanation:
A chronic condition that causes permanent damage to the glomerular membrane, resulting in renal failure is.
Answers
Answer:
Chronic glomerulonephritis
Explanation:
hope this helps :)
All species have a maximum tolerance limit before they are no longer suited to live in their environment. In three to five sentences, discuss the potential outcomes for a species when that maximum limit is reached. There are at least four possibilities, and one point will be assigned per potential outcome mentioned.
Answers
The potential outcome of maximum tolerance limit is reduction of population.
What is the outcome of maximum tolerance limit?The potential outcomes for our species happens when maximum tolerance limit is reached. Due to this, the population of that organism can decrease. As many species can die due to maximum tolerance limit, it can cause a reduction in reproductive rate as well as reduce life span off individuals.
So we can conclude that the potential outcome of maximum tolerance limit is reduction of population.
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Answer:
The organism will be incapable of adapting, and the species will become extinct. The second possibility is that the organism will be unable to adapt, and the species will evolve into a new one. The third possibility is that the organism will adapt and evolve into a new species. The fourth possibility is that the organism will adapt and evolve to fit its new environment.
Explanation:
You can use Speedwrite or Quillbot to rephrase it so that you wont get in trouble for copying! :))