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
What happens to the lac operon when both glucose and lactose are present?
Answers
Answer:
If both glucose and lactose are both present, lactose binds to the repressor and prevents it from binding to the operator region. The block of lac gene transcription is thus lifted, and a small amount of mRNA is produced.
Explanation:
Use the drop-down menus to indicate where each exocrine system structure is located. the liver and pancreas are located in the . the goblet cells are located in the . the oil and sweat glands are located in the . the salivary and lacrimal glands are located in the .
Answers
What is the exocrine system?
The salivary and lacrimal glands are placed withinside the face land that makes materials along with sweat, tears, saliva, milk, and digestive juices, and release them thru a duct or beginning to a frame surface.
Thus it is well explained.
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Answer:
The liver and pancreas are located in the abdomen.
The goblet cells are located in the top layers of organs.
The oil and sweat glands are located in the skin.
The salivary and lacrimal glands are located in the face.
Explanation: Correct
Non-flowering plants are known as seedless plants
Answers
Answer:
i would say True Beauce there put in the same category
(Non-flowering and seedless plants are known as cryptogams)
Which of the following is least involved in the mechanical breakdown of food, digestion, or absorption?.
Answers
Answer:
Esophagus
Explanation:
In the digestion and absorption of food, the esophagus is the least involved.
It is a part of the digestive system, but all it does is simply pass the food down to the stomach.
The one that is least involved in the mechanical breakdown of food, digestion, or absorption is esophagus. The correct option is d.
Even though it is a vital component of the digestive system, the esophagus plays a much smaller role in the mechanical digestion of food than the other alternatives.
A muscular tube called the esophagus moves food from the mouth to the stomach by a process known as peristalsis, which calls for repetitive muscle contractions.
Its main job is to push food down the digestive tract so that it can travel more easily. Food is mostly mechanically broken down in the mouth while being chewed by the teeth and in the stomach while being churned by muscles.
The majority of digestion and nutrient absorption occurs in the small intestine.
Thus, the correct option is d.
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Your question seems incomplete, the probable complete question is:
Which of the following is least involved in the mechanical breakdown of food, digestion, or absorption?.
a) Stomach
b) Teeth
c) Small intestine
d) Esophagus
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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How and why do organisms interact with one another?
Answers
Answer:
It's in their makeup to interact
Explanation
They need to interact to survive, to exist, to reproduce!
Answer:Organisms interact because of mating, competition for food resources, defense, and assertion of dominance.
Explanation:
Hey Adam are we good with you and I hope your?
Answers
Answer: yo whatever you’re going through, just don’t apologize on brainly
Explanation:
S
11. Evaluate how a person's blood calcium levels
would be affected if his or her thyroid gland
stopped working.
Answers
our thyroid glands plays a main role in a human body. It secretes thyroxine and calcitonin. In which thyroxine help in growth and cellular metabolism and calcitonin helps to regulates calcium concentration in blood . If thyroid gland stops working then there is low level of calcium in our blood, which leads to mental and hormonal disorder. In this way a person's blood calcium level would be affected if his/her thyroid gland stops working.
A global mind-set is an increasingly valued _________ trait.
Answers
Answer:
task-oriented
Explanation:
A global mind-set is an increasingly valued task-oriented trait.
Answer:
A global mindset is an increasingly valued task-oriented trait.
Explanation:
A global mentality is a task-oriented attribute that is becoming more appreciated. All characteristics are either positive or bad, and excellent leaders should have only positive characteristics. The implications of leadership traits cannot be ignored.
Both plant and animal cells as well as many unicellular organisms contain
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Answer:
Both plant and animal cells as well as many unicellular organisms, contain a mitochondria and nucleus which supply energy for a cell .
Explanation:
Cell is the basic functional and structural unit of life. Plant, animal as well as many unicellular organisms contain cell organelles and mitochondria which supply energy to cells.
What are different cell organelles?Cell organelles are the structures inside a cell that floats inside the cytoplasm.
Any cell that is living has cell organelles.
Cell organelles are as follows:
Mitochondria: form ATP and provides energy to the cell.Nucleus: Brain of the cell.Ribosome: helps in protein synthesis.Endoplasmic reticulum: It helps in the transport of substances.Golgi bodies: involves in packaging.Lysosome: involved in digestion of cell.Thus, Both plant and animal cells as well as many unicellular organisms contain organelles and mitochondria that provides energy to the cell.
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Movement of phloem sap from a source to a sink ________.
Answers
Bulk flow refers to the movement of phloem sap from a source to a sink in plants.
What is Phloem?This is a vascular tissue found in plants which helps to transport and distribution of the organic nutrients derived from photosynthesis.
Bulk flow occur when these nutrients present in the phloem sap are moved from source to sink.
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Plants are able to engage in photosynthesis because they produce a chemical that can absorb sunlight to synthesize glucose. What is this chemical?.
Answers
Answer:
Chlorophyll
Explanation:
Plants engage in photosynthesis with the help of chlorophyll.
In the process : Carbon dioxide is used and oxigen is produced.
Definition of pandemic
Answers
please what is meant by photosynthesis
Answers
Answer:
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities. Some of this chemical energy is stored in carbohydrate molecules, such as sugars and starches, which are synthesized from carbon dioxide and water, In most cases, oxygen is also released as a waste product that stores three times more chemical energy than the carbohydrates. Most plants, algae, and cyanobacteria perform photosynthesis; such organisms are called photoautotrophs. Photosynthesis is largely responsible for producing and maintaining the oxygen content of the Earth's atmosphere, and supplies most of the energy necessary for life on Earth.
Explanation:
is it 0.05, 0.04, 0.15 and 0.80
Answers
Answer:
No
Explanation:
I have 0.04 cents, you have 0.05, Mom has 0.15, and dad has 0.80
True or False: In a box and whisker plot, 50% of the data is between Q1 and the median
Answers
Answer:
Minimum = 0%
Q1 (Lower Quartile) = 25%
Median = 50%
Q3 (Upper Quartile) = 75%
Maximum = 100%
That is true. In a box and whisker plot, Q1 is the first quartile (first 25% of the data) is between the lower quartile (Q1) and the median. The median is the middle, so 50% will fall between Q1 and the median. It's important to understand the various measures of central tendency and how they can be used to analyze the spread of data within a given set, which can provide valuable insights and understanding about the overall trends present within the data.
What prevents the blood in veins from flowing in the wrong direction?.
Answers
Answer:
The heart valves
Explanation:
The heart valves prevent blood from flowing in the wrong direction in the heart. The valves are held in the proper place because of the chordae tendinae.
HEEEELLLLPPPPP
Deforestation is the second leading cause of global warming (climate change) worldwide, and it produces about 24% of global greenhouse gas emissions. Deforestation in the tropical rainforests contributes more carbon dioxide to the atmosphere than the sum of all cars and trucks that drive on the world’s roads.
Why would deforestation this lead to more carbon dioxide?
a
The changed habitats support more animals, like native birds and mammals, that produce more carbon dioxide.
b
The increased amount of timber harvested produces oxygen gas, which encourages the wildlife to generate carbon dioxide.
c
Loss of trees leads to a decrease of the ability of forests to act as carbon sinks to remove carbon dioxide from the atmosphere.
d
Equipment used for clear-cutting produce metric tons of carbon dioxide, which is released into the atmosphere during the process of deforestation
Answers
Answer:
C
Explanation:
According to Worldwildlife.org, Forest play a critical role in mitigating climate change because they act as a carbon sink - soaking up carbon dioxide that otherwise be free in the atmosphere and contribute to ongoing changes in climate patterns.
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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Florida experiences a lot of rain in the summer months. How do plants respond to this?
Answers
Answer:
They Start to Sprout and bud
Answer:
They grow more and produce flowers or fruit.
Explanation:
I got it right on my quiz haha
Hope this helped/helps!!
Have a nice day alsooo!
3. use the simulation to observe the first-generation offspring from the cross between flowers c and a. what is the most likely genotype of flower c? use a punnett square to justify your explanation.
Answers
To observe the first generation offspring of the cross between the flowers c and a. the most likely genotype of flower c is its color.
What is genetic probability?Probability serves to mathematically estimate the possibility of events that happen by chance, that is, as a matter of luck. It can be defined by the following formula: Where P is the probability that an event will occur, A is the number of desired events, and S is the total number of possible events.
With this information, we can observe the first generation offspring of the cross between the flowers c and a. the most likely genotype of flower c is its color.
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Answer: The most likely genotype is color.
Explanation:
The picture shows us how the Sun's rays strike Earth. Because of the Earth's tilt on its axis, some parts of Earth are having summer
and others, winter. What letter or letters on the Earth are experiencing summer?
A) B
B) C
C) B and C
D) C and D
Answers
Answer:
B n C
Explanation: You can tell this because when you look at the diagram it shows B and C facing the sun so that means it's summer.
Answer
D.) C and D
Explanation:
It may look like B and C, but the sun hardly reaches up in the north, plus its axis is shifted so it's not technically summer for them yet, this leaves the bottom, which will rotate and give both sides the taste of summer glory.
Once the earth rotates more, it will be summer for B. and A.
But the graph shows that the answer is
D.) C and D
HELP ME!!!!! What is an important part of scientific methods? there is more then one answer so Select all correct answers.
A. establishing state of the art labs
B. forming conclusions
C. making hypothesis
D. using computers
Answers
Answer:
B and C
Explanation:
establishing state of the art labs isn't a part of the scientific method and neither is using computers
When pigs reproduce, which two types of cells pass on information from the pigs to the piglets?
Answers
Answer:
nuclei
Explanation:
Nuclei male and nuclei female to create a zygote
The two type of cells that pass on information from the pigs to the piglet is the male and female reproductive cells.
What is male and female reproductive cell?The male and female reproductive cell contains information about the parents that are passed on to the offspring.
The piglet inherit some genes from both parents through their cells.
Therefore, The two type of cells that pass on information from the pigs to the piglet is the male and female reproductive cells.
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can the shape of globin change ?
Answers
Answer:
People with the sickle cell mutation in both copies of the HBB gene produce proteins that clump together and lead to changes in the shape and behavior of red blood cells.
Which of the following is the most likely flow of energy in an aquatic ecosystem? a. phytoplankton → mammal → zooplankton → fish b. phytoplankton → zooplankton → fish → mammal c. zooplankton → phytoplankton → mammal → fish d. mammal → fish → zooplankton → phytoplankton
Answers
The flow of energy in an aquatic ecosystem phytoplankton → zooplankton → fish → mammal.
What does the bottom-up model?The bottom-up effect means that a lower trophic level in the biological network affects the community structure of higher trophic levels by means of resource restriction.
whereas the top-down effect refers to a higher trophic level that influences the community structure of a lower trophic level through predation.
Thus, opotion "B" is correct.
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What is the shape of DNA when it is not undergoing replication?
Answers
Explanation:
If DNA replication does not occur, then the cell cycle will not proceed to the next stage and the subsequent division will not happen. It will lead to cell death.
Identify the independent variable in the experiment represented in Figure 3B. Justify the use of hair from individuals unaffected with FT as the control in the experiment represented in Figures 3A and 3B. Based on the data in Figure 3B, describe the FT effect of the disorder on the proportion of hairs in the growth phase. Based on Figure 2, if individuals 3 and 4 have another child, calculate the probability that the child will be affected
Answers
Based on the experimental data, the independent variable is the protein fibroblast growth factor-5, FGF5 which is unaffected by hair growth.
What is FT?Familial trichomegaly, FT, is a genetic disorder which results in abnormally long eyes in affected individuals.
FT is caused by a mutation in the genes that coded for the protein fibroblast growth factor-5, FGF5.
In research, the independent variable is unaffected by changes in another variable, butis changed and controlled by the researcher.
Based in the experiments, the independent variable is the protein fibroblast growth factor-5, FGF5.
Therefore, the independent variable is the protein fibroblast growth factor-5, FGF5 which is unaffected by hair growth.
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Could melanin granules be moved by dynein and kinesin along an actin microfilament?.
Answers
We can confirm that melanin granules could in fact not be moved by dynein and kinesin along an actin microfilament.
Why can these substances not be moved along a microfilament?This has to do with the fact that these proteins are specific to microtubules, and therefore are not able to move along microfilaments. This is why the dynein and kinesin motor proteins would not be able to transport the granules along microfilaments.
Therefore, we can confirm that melanin granules could in fact not be moved by dynein and kinesin along an actin microfilament.
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Adipose tissue is one of the most hydrated of all tissues in the human body
Answers
Answer:
False
Explanation:
Adipose tissue is one of the lease hydratetd of all tissues in the human body.
Adipose tissue is one of the most hydrated of all tissues in the human body and is one of the maximum hydrated of all tissues withinside the human frame.
What is intracellular fluid?The maximum ample cation in intracellular fluid is sodium. Solutes, irrespective of size, are capable of pass freely among booths due to the fact water includes them alongside the osmotic gradients.
Adipose tissue carries approximately 10% of water, even as muscle groups carries approximately 75%. In Netter's Atlas of Human Physiology, frame water is damaged down into the subsequent booths: Intracellular fluid (2/three of frame water) is fluid contained inside cells.
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