Answer:
Variable being tested: The direction taken by the hatchlings under different magnetic fields.
Explanation:
The independent and the dependent variables are the two principal factors needed in an experiment.
Independent variable: Refers to all the variables in an experiment that provoke a response in another variable. The independent variable changes or is controlled and modified in the experiment to analyze how another variable responds to it. It changes to analyze its effects on the dependent variable. Usually, the independent variable is represented by the X letter. Dependent variable: Refers to the variable that reacts to the changes produced in the independent variable. Depending on how the independent variable is modified, the dependent variable change. It is usually identified by the letter Y.In the exposed example, we know that
Goal: To explore the orientation or direction-finding abilities of loggerhead sea turtle hatchlings under varying magnetic conditions.
Experiment:
The hatchlings were placed in water tanks in the laboratory, under dark conditions and during the night.
Tanks in a natural magnetic field Tanks in a reversed magnetic field ⇒ north and south were flippedObservations were done about the swimming direction of the hatchlings
Variable being tested: The direction taken by the hatchlings under different magnetic fields.
In this experiment, the independent variable is the magnetic field conditions. The alternative conditions -how this variable is modified- are the Natural magnetic field and Reversed magnetic field. Researchers are no interested in the magnetic field, they are interested in analyzing how the change in the magnetic field affects the turtles´ orientation. Then, we can assume that the dependent variable is the direction taken by the turtles. It depends on the change in the magnetic field. Researchers are interested in testing how the change in the magnetic field affects the orientation of the turtles. This is the variable being tested in the experiment.
Orientation abilities of loggerhead sea turtle.
Kenneth nd catherine are working on a university project to the find out the orientation or the direction finding abilities of the logger head sea turtle as their hatchlings lay indifferent magnetic conditions. They are placed in differences environments. They are also kept in revere magnetic fields.
Thus answer is based on the magnetic field.
As per the exploration and findings the abilities of the sea turtle were carried out in the dark night and since they migrate to their nest in the ocean the variables such as Independent Variable was analyze its effects on the dependent variable. Usually, the independent variable is represented by the X letter. The dependent variable showed the changes that took place due to the changes in the independent variable and these were related to the use of light, distance and navigational direction.Hence the option is A magnetic field.Learn more about the Kenneth and Catherine.
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The new Hazard Communication Standards provide teachers and students the right to __________ chemical hazards.
The new Hazard Communication Standards provide teachers and students the right to manipulate chemical hazards.
Chemical hazards are non-biological substances that can cause damage to health. These are used in different enterprises, companies, school, universities and laboratories for different purposes such as cleaning, disinfection, scientific experiments, among others. When handling them, employees are exposed to them and are vulnerable to harm from these chemicals.
There are many types of hazardous chemicals to be wary of, such as:
Carcinogens NeurotoxinsAcids Systemic toxins Asmogens Silica dust LeadIn the workplace, exposure to these substances represents a real occupational hazard and there must be regulations to ensure that they are safe to handle.
The Occupational Safety and Health Administration (OSHA) is the agency of the U.S. Department of Labor which determined the Hazard Communication Standards. This is a document with the necessary information to study the hazards of the chemical substances used by different employees in the companies, so that they are aware of the dangers of these substances. These employees have the right to know exactly what compounds they handle and the risks involved in their use as well as the precautions and care to be taken.
Therefore, by having these safety standards in place in schools and universities, teachers and students have the possibility and the right to handle chemical hazards safely to be able to conduct the class normally and learn what is necessary.
Learn more about chemical hazards here: https://brainly.com/question/13113515
Please helpppppppppp ASAP
100 extra points
Answer
answer with the help of this
Explanation:
A pure substance containing only one kind of blank hurry
Answer:
elements
Explanation:
the results of an experiment can be validated through replication true or false
Answer:
True through replication
Answer:
this is true
Explanation:
will mark Brainliest!!!!!! To corroborate information is to?
find evidence that opposes a scientific position.
find evidence that supports a scientific position.
find evidence that proves a scientific position.
find evidence that disproves a scientific position.
The most correct option as to what corroborating information means would be to find evidence that supports a scientific position.
Corroborate is an English word that means 'to agree with' or 'give credence to'.
Hence:
Finding evidence that opposes a scientific position is a wrong option because that is the complete opposite of what corroborate means. Finding evidence that approves a scientific position is also a wrong option because corroborating a statement does not necessarily make the statement to be scientifically correct.Finding evidence that disproves a scientific position is also incorrect. Corroborate neither translates to approve nor disprove,Therefore, the correct option that clearly explains what corroborate means in the context of science is to find evidence that supports a scientific position.
More on corroboration here: https://brainly.com/question/17392648
Which of the following is a central idea of cell theory?
O Molecules are made out of two or more cells joined together.
O Cells join together when they reproduce.
O Cells come from preexisting cells.
O Atoms are the basic unit of function in living things.
Answer:
[tex]cells \: come \: from \: pre \: exixting \: cell \\ thank \: you[/tex]
Please help me with this on the picture
which aspect of el nino can give scientists a preview of earth as temperatures rise with global warming?
Answer:
Its warming of sea surface temperatures
Answer:
its warming of sea surface temperatures
Explanation:
Modern plant-breeding techniques (artificial selection in action) have reduced genetic variability in many of our most commercially valuable plants. To most people, that would generate a shrug. However, a biology student that has studied evolution understands the problem with this. Briefly explain why there is an issue with this.
Answer:
There is an issue with the artificial selection.
Explanation:
There is an issue with this artificial selection because the genetic variability is reduced when we do again and again the artificial selection. In the artificial selection, the selected genes are combined with the one another and does not allow natural fusion or combination of genes that is responsible for the genetic variability in the organisms so that's why we can say that this artificial selection is an issue that reduce genetic variability.
Forming a hypothesis is the first step of the scientific method.
Answer:
The first step in the Scientific Method is to make objective observations. These observations are based on specific events that have already happened and can be verified by others as true or false. Step 2. Form a hypothesis.
Explanation:
The hypothesis is an educated guess as to what will happen during your experiment. The hypothesis is often written using the words "IF" and "THEN." For example, "If I do not study, then I will fail the test." The "if' and "then" statements reflect your independent and dependent variables
How do DNA and RNA differ?
Answer:
DNA is a long polymer with deoxyriboses and phosphate backbone. Having four different nitrogenous bases: adenine, guanine, cytosine and thymine. RNA is a polymer with a ribose and phosphate backbone. Four different nitrogenous bases: adenine, guanine, cytosine, and uracil.
Answer:
DNA contains the sugar deoxyribose, while RNA contains the sugar ribose. DNA is a double-stranded molecule, while RNA is a single-stranded molecule. DNA is stable under alkaline conditions, while RNA is not stable. DNA and RNA perform different functions in humans.
Explanation:
help with the answer
Answer:
last answer
Explanation:
epithelial tissue is a network of cells that lines your organs
Which group evolved first?
rays
skates
sharks
chimaeras
Answer:
C - Sharks; (took the test)
Explanation:
Sharks evolved nearly 420 million years ago. Chimeras, skates, and rays are all related to sharks through their ancestry.
Answer:
I hope this helps.
Explanation:
hola, ecesito para ahora,
cual es la diferencia entre la alergia a la leche y le intolerancia a la lactosa?
gracias
Answer:
Una alergia verdadera a la leche difiere de la intolerancia a las proteínas de la leche o de la intolerancia a la lactosa. A diferencia de una alergia a la leche, en la intolerancia no interviene el sistema inmunológico.
Explanation:
What type of evolutionary adaptations did plants acquire to allow them to grow in areas that were not directly on a water source? A. Angiosperms evolved flowers, which could catch rainwater, reducing the dependence on ground water sources. B. Vascular seedless plants evolved specific structures to transport and hold fluids, reducing dependence on water sources. C. Gymnosperms evolved seeds, which they could alter to need less water. D. Non vascular plants evolved chloroplasts to allow them to get energy from the sun, instead of relying on water for energy.
Answer:
B
Explanation:
In the given scenario, vascular seedless plants evolved specific structures to transport and hold fluids, reducing dependence on water sources. The correct option is B.
What is vascular plants?A plant that basically have a specialized conducting system which entails xylem and phloem, the tracheophyte is referred to as vascular plants.
Vascular plants are widely recognized as tracheophytes. Vascular tissues are xylem and phloem for conduction of water and food respectively.
They allow plants to grow in height in the air without even drying out. Vascular plants also have roots, stems, and leaves.
Seedless vascular plants are the ones which have vascular tissue but though do not produce seeds as well as flowers.
In such vascular plants, for instance, ferns and horsetails, the plants multiplies using haploid and unicellular spores on the place of seeds.
Thus, the correct option is B.
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_____ are related to poor productivity of harvest due to poor care for soil.
Answer:
Soil Tillage, Climate Change and Soil Carbon Sequestration
Explanation:
ruth is presenting the feedback model to her class help her complete the statements
Answer:
Feedback models are tools that provides specific, concise, and clear feedback for a particular thing.
Explanation:
Feedback models are tools that provides specific, concise, and clear feedback for the organization so that an organization can make useful changes which is necessary for the organization growth and development. There is high need of this feedback model which helps us to know about the specific areas where one needs to improve performances in order to work more effectively.
C What is the important of making prority
Answer:
Priorities will guide you in life's decisions and keep you on track. Most importantly, priorities will give you the confidence to say "no." They help you identify what's truly needed in your life, versus what someone else feels is important.
Answer:
The importance of it are Establishing priorities is necessary in order to complete everything that needs to be done. Prioritization is important because it with allow you to give your attention to tasks that are important and urgent so that you can later focus on lower priority tasks.
In meiosis, sister kinetochores are attached to the same pole of the cell during meiosis I, and sister chromatid cohesion is released during anaphase II. What would be the likely result if sister kinetochores were attached to different poles of the cell during meiosis I and sister chromatid cohesion was released during anaphase I
Answer:
sister chromatids would migrate to opposite poles in anaphase I
Explanation:
Kinetochores are multiprotein structures that establish the attachment of spindle microtubules to the chromatids during cell division (either mitosis or meiosis). Sister chromatid cohesion at the centromeres refers to the mechanism by which sister chromatids are paired and held together during meiosis I. This process (sister chromatid cohesion) is fundamental to ensure the correct orientation of chromatids on the spindle microtubules and their subsequent segregation in meiosis II. The fusion of sister kinetochores in meiosis I underlies sister chromatid cohesion during this stage of the cell division, thereby their disruption or destruction of sister chromatid cohesion would lead to separation and segregation of sister chromatids to opposite poles of the cell in anaphase I.
PLLZZZ HELP!!
Diagram the alternation of generations life cycle of a plant. Put the following terms in order and type arrows (>) between the terms to show which direction the life cycle is going: sporophyte, gametes, gametophyte, spores, meiosis, sporangium. Label which parts are haploid and which parts are diploid. You may also list the terms in numerical order.
Answer:
i know that gametes and meiosis are both haploid, but i havent heard of the others yet, i cant help you there :/
There is a U-tube in which solutions in two arms A and B are separated by a membrane. Arm A contains glucose with concentration of 0.4 mol per liter and sodium chloride with concentration of 0.5 mol per liter. Arm B contains glucose with concentration of 0.8 mol per liter and sodium chloride with concentration of 0.4 mol per liter.
The solutions in the arms of a U-tube (the figure) are separated at the bottom of the tube by a selectively permeable membrane. The membrane is permeable to sodium chloride but not to glucose. Side A is filled with a solution of 0.4 M glucose and 0.5 M sodium chloride (NaCl), and side B is filled with a solution containing 0.8 M glucose and 0.4 M sodium chloride. Initially, the volume in both arms is the same.
If you examine side A in the figure after three days, the concentrations of glucose and NaCl should be _____________.
Answer:
0.4 M glucose, 0.45 M NaCl
Explanation:
I hope this helped!
The prevalence of CRE infections in health care settings has increased significantly in recent years, in part because these organisms are able to share plasmid-encoded resistance genes. Which method of horizontal gene transfer is most likely responsible for transfer of the plasmid between bacteria
Answer:
Bacterial conjugation
Explanation:
Carbapenem-resistant Enterobacterales (CRE) are different types of bacteria that lead to infections in healthcare settings. Moreover, a plasmid is a small piece of DNA that can replicate independently from the bacterial chromosome. Bacterial conjugation is a type of horizontal gene transfer by which plasmids are transferred from one bacterium referred to as 'donor' into another called 'recipient' by sex pili. Plasmid transfer is unidirectional and depends on physical contact between bacterial cells. In this case, it is expected that this type of DNA transport mechanism occurs among patients occupying the same rooms in healthcare settings.
blood flows through many small tubes if the dialyser. what is the significance of this
Answer:
Blood flows through smaller tubes to mimic the actual rate of blood flow in the body. This makes the dialysis machne safe for the body. Th dialysis machine can also adjust pressure in accordance of a persons blood pressure
Explanation:
What are the phases of a scientific method?
Answer:
Ask a Question
Do Background Research
Construct a Hypothesis
Analyze Your Data and Draw a Conclusion
Communicate Your Results
Explanation:
cual es el productor del que más consumidores primarios se alimentan
Answer:
please let us know what you mean in English
Answer:
Plantas o Algas son unos productos que consumen.
Explanation:
7. To test a new voice feature in a cockpit design a flight simulator was used. The simulator was programmed to
give visual readings of flight information, or to give visual and auditory (voice) readings of flight information. All
test pilots were put through a simulated emergency landing procedure, but were randomly assigned to the
visual, or visual and auditory conditions. Flight experts rated each pilot's performance in the simulator on a
scale of 1 (very poor) to 10 (excellent).
The variables in the simulation procedure carried out are :
Independent variable = Simulator Independent variable = Simulator Dependent variable = PerformanceThe dependent and independent variables are critical in any experimental study as both variables encompasses the variable to be measured and the variables manipulated in other to obtain the variable to be measured.
Independent variable : This is also called the predictor variable which is tweaked in other to obtain changes in the measured or dependent variable. In the experiment performed, the simulator is the independent variable has it has different visual or visual and auditory conditions capable of causing changes to the performance rating. The dependent variable is the variable being measured in an experiment. In this case, it is PERFORMANCE. It is the measured output obtained as the the pilot are being rated based on the simulation.Learn more : https://brainly.com/question/4497530
Which tools would I use to heat 400 mL of water
Answer:
ruler, graduated cylinder
Explanation:
25 puntos ayudame biologia gracias
Answer:
no puedo entender tu idioma
reaccionar unos con otros navegar por Internet y buscarlo
Based on the cell theory, which of the following is true?
O All cells are too small to be seen.
O All living things are made of cells.
OSmall organisms have more cells than large organisms.
Large organisms have larger cells than small organisms.
Answer:
all living things are made of cells
Answer:
all living things are made of cells
Explanation:
The first part of the cell theory states that all living things are made up of cells. Anything that’s alive, from bacteria to plants to humans, is composed of cells. And what are cells? The literal definition is a cell is a group of organelles surrounded by a thin membrane.
According to the theory of natural selection, why are some individuals more likely than others to survive and reproduce?
1Points
A
Some individuals pass on to their offspring new characteristics they have acquired during their lifetimes.
B
Some individuals are better adapted to exist in their environment than others are.
C
Some individuals do not pass on to their offspring new characteristics they have acquired during their lifetimes.
D
Some individuals tend to produce fewer offspring than others in the same environment.
