Answer:
Its B
Explanation:
Its not going to EVOLVE
1. What are the independent and dependent variables in each of the experiments?
2. What information should be added to the diagram to give the reader a better understanding of how these experiments
were conducted?
3. What items should have been CONTROLLED in the experiments?
4. How much confidence would you have in the conclusion of experiment 3 if you found out that the temperature was not
controlled? Explain your reasoning.
5. Create your own flow chart to answer a causal question.
When possible, scientists take a look at their hypotheses through the use of managed experiments. A managed test is a systematic take look at executed below-managed conditions, which means that simply one (or a few) elements are modified at a time, even as all others are saved consistently. We'll appear carefully at managed experiments within side the subsequent section.
In the three experiments, the dependent variable is evaporation, as it changes with the change in another variable.The independent variable in experiment 1 is temperature, experiment 2 is airflow, and experiment 3 is light.
The experiment can be understood better with the representation of the schematic that shows the setup to analyze how the experiment was performed. Therefore the diagram must add the schematic of the experiment.The controlled items in the experiment are the variables that are set at the particular unit to form the result. the controlled item in experiment 1 is temperature, experiment 2 is airflow from the fan, and experiment 3 is the intensity of light.The result of experiment 3 is based on the dependence on the intensity of light keeping temperature constant and controlled. If the temperature is not controlled in the experiment then it may lead to an alteration in the results as it depends on both light and temperature.The flow chart for the increase in pressure affecting the evaporation is given in the image attached.Read more about variables :
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Looking at the graph (photo attached), what is the independent and dependent variable?
Answer:
Temperature(0C)= Independent
Light Intensity(candelas)= Dependent
Explanation:
Dependent is always the Y-axis (vertical line)
Independent is always the x-axis(horizontal line)
Freshwater leeches attach to fish and suck blood from the fish for extended periods of time. This results in sores on the fish that often become infected.
This relationship is best described as
Answer:parasitism
Explanation:
the leeches benefit but cause the fish harm I’m not sure if this is the type of answer you needed hopefully it helps
Answer:
It's called Parasitism. As these leeches live outside the fish body so they are Ectoparasites.
Really need help on this asap pleasee!
giving out 15 points out for this :)
Pietro has two dogs that are related, and he wants to understand why one of the dogs has tan fur and the other has brown fur.
Arrange the following events in the order in which they occurred.
Answer:
1→4→5→3→2
∙
Mitotic cell division starts with the condensing of chromosome accompanied by splitting of the centrosome and its movement towards the opposite poles.
∙
As the nuclear envelope and nucleolus disappear, spindle fibres arise from the centrosomes and start binding to the condensed chromosomes at the centromeres.
∙
The chromosomes bound by the spindle fibers are then arranged in the middle of the cell forming the equatorial metaphase plate.
∙
Next the centromere splits and the sister chromatids are pulled away towards the poles by the contraction of spindle fibres.
∙
Following this, a cleavage furrow starts to develop in the middle of the cell while the nuclear membrane starts to reappear around the separated chromatids.
∙
The condensed chromatids start thinning into chromatin fibre along with reappearance of the nucleolus and the cleavage furrow deepening further.
∙
Finally as the nuclear membrane becomes fully intact, the cleavage furrow deepens and split the cells from middle into two daughter cells.
How does sucrose move in the sieve tube?
The sucrose move in the sieve tube by active transport.
What is active transport?Active transport is a type of transport in which the cell expends energy to move solutes against their concentration gradients. The sodium-potassium pump is an example of active transport. Active transport differs from passive transport in that the cell does not expend energy.
In this case, the sucrose moves from companion cells into sieve tube elements by active transport. This reduces the water potential of the sieve tube element by osmosis, which increases the hydrostatic pressure.
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which statement is false about base stacking when nucleic acids are in a double-stranded conformation?
The statement that is false about base stacking is; B. Stacking interactions are hydrophilic in nature.
What is the truth about Base Stacking?Base stacking is defined as a common arrangement of nucleobases that are found in the three dimensional structure of nucleic acids. Bases (or base pairs) are planar, and these planes stack at contact distance , excluding water and maximizing Van der Waals interactions.
Looking at the given options, the only one that can be said to be false about the defined base stacking above as regards nucleic acids is option B.
The missing options are;
A. Stacking interactions occur when two or more bases are positioned with their rings parallel to each other.
B. Stacking interactions are hydrophilic in nature.
C. Stacking involves a combination of van der Waals and dipole-dipole interactions between bases.
D. Base stacking helps to minimize contact of the bases with water.
E. Base stacking interactions are important in stabilizing the three-dimensional structure of nucleic acids.
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Explain how the circulatory system is able to transport the blood under high pressure from the heart to the rest of the body
Transport of blood under high pressure is done through the concerted efforts of the heart and arteries.
The circulatory system is the network of the heart, arteries, veins, and capillaries responsible for the movement of blood around the body.Transporting blood under high pressure can be explained in the following steps:
Contraction of the heart ventricles creates blood under high pressureHigh pressured blood is removed from the heart through the arteries. In addition, the arteries are able to contract and expand, thus are elasticThe lumen of the arteries is narrow thus helping in maintaining high pressureAs a result of the above, the high pressure of blood is maintained and transported to the extremities of the body.
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in analyzing the number of different bases in a DNA sample, which result would be consistent with the base-pairing rules?
In analyzing the number of different bases in a DNA sample, the result would be consistent with the base-pairing rules is A+G = C+T.
What is the RNA base pairing rule?Base pairing occurs precisely: a purine base binds to a pyrimidine – adenine (A) on one chain pairs with thymine (T) on the other and guanine (G) pairs with cytosine (C).
In this case, the base pairing rule states that the number of adenine is equal to number of thymine. Similarly, the number of guanine is equal to number of cytosine.
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Which pattern is caused by fire burning upward
Pour patterns
V-pattern
Rundown pattern
Inverted cone
Please only answer if you know
V-pattern caused by fire burning upward. Thus, the correct option is B.
What do V patterns in burn mean?V-Patterns: Because fire burns up in a V-shape, a fire that starts at an outlet next to a wall will leave a char pattern that will help identify the source. A fire that is hotter than usual, such as one aided by an accelerant, may have an extremely narrow V-shape.
The observable or quantifiable physical changes or recognisable shapes produced by a fire effect or combination of fire effects are known as fire patterns, sometimes known as burn patterns. The changes that occur in or on a substance as a result of exposure to fire are known as fire effects.
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The chart below shows the three main types of plant tissues and associated tissues.
The chart shows the 3 main types of plant tissues and associated tissues. Plant tissue is divided into dermal, ground, and 1. Ground is divided into 2, Collenchyma, 3. 1 is divided into 4 and 5.
Which row (A, B, C, or D) best completes the chart above?
1
2
3
4
5
A
Vascular
Xylem
Parenchyma
Phloem
Sclerenchyma
B
Xylem
Phloem
Vascular
Sclerenchyma
Parenchyma
C
Parenchyma
Vascular
Xylem
Phloem
Sclerenchyma
D
Vascular
Sclerenchyma
Parenchyma
Xylem
Phloem
A
B
C
D
The plant tissues can be subdivided in the chart as Vascular Sclerenchyma Parenchyma Xylem Phloem. Thus, the correct option is D.
What role does the sclerenchyma play?Sclerenchyma's primary job is to offer mechanical support. They are made up of lengthy, slender cells that have a thick lignified wall. They lack protoplast and are largely dead.
The complete chart and table are given in the image attached.
A basic permanent tissue known as parenchyma makes up a large portion of the ground tissues of plants, where vascular tissues and other tissues are attached. They are non-vascular and made up of undifferentiated, primitive living cells that have undergone modifications to carry out distinct tasks.
Xylem, along with phloem and cambium, is a key component of vascular tissue. Its primary functions include providing mechanical support and storage as well as moving water and solutes from the plant-soil interface to the stems and leaves.
Parenchyma cells, are also a component of phloem and are essential for the storage of water, non-structural carbohydrates, and storage proteins.
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Answer: it’s D
Explanation: truss
a child is newly diagnosed with neonatal bronchopulmonary dysplasia (chronic lung disease). which intervention should the nurse perform first to help the parents?
The intervention that the nurse needs to perform to help the parents is to evaluate parent's stress/anxiety levels.
What are stress and anxiety levels?Stress and anxiety levels represent serious health problems associated with different physiological events.
Stress and anxiety levels may be very high during a traumatic situation and cause diseases.
In conclusion, the intervention that the nurse needs to perform to help the parents is to evaluate parent's stress/anxiety levels.
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Which order in the taxonomic table is most distantly related to the others? explain how you know. (2pts)
The organism in the attached taxonomic chart that is related distantly from others is Organism A - Plant.
What is a taxonomic table?A taxonomic table or chart in biology is a table that is used to arrange and show the relationship between living things.
The organism (plant) is the most distant because it belongs to the Kingdom Plantae while the others are in the Kingdom Animalia.
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Consider the diagram of an internal feedback mechanism that the body uses to help maintain homeostasis.
The internal feedback mechanism is shown. Stimuli goes to the receptor to the coordinator to the effector to the response and then to feedback.
What is the role of the central nervous system in this model?
a) coordinator
b) effector
c) response
d) stimuli
The role of the central nervous system in this model is as coordinator (Option a).
What is the central nervous system?The central nervous system is a fundamental body system that acts by sending and receiving signals from the environment.
The central nervous system can act as a coordinator by modulating signals and thus maintaining the internal equilibrium (homeostasis).
In conclusion, the role of the central nervous system in this model is as coordinator (Option a).
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Accumulation of blood in the abdominal cavity will most likely cause:
According to the research, accumulation of blood in the abdominal cavity will most likely cause distention.
What is distention?It is the dilated state of organic cavities (abdomen), hollow organs (intestine, stomach, pericardium, abdomen, bladder, gallbladder, vena cava) and solid organs (hepatic capsule, etc.).
In this state the abdominal cavity can experience a certain degree of enlargement of its contents without rupturing.
Therefore, we can conclude that according to the research, accumulation of blood in the abdominal cavity will most likely cause distention.
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When excessive salt, chemicals, and other runoff enters local streams, what types of effects can this have on the ecosystems?
When excessive salt, chemicals, and other runoff enters local streams, it will have a negative effect on the ecosystems by causing pollution.
How does water pollution get into runoff?Pollution refers to the contamination of the air, soil, or water bodies due to the accumulation of contaminants as above described.
Runoff may lead to the accumulation of pollutants on the water and therefore it may have a negative effect on the ecosystem.
In conclusion, when excessive salt, chemicals, and other runoff enters local streams, it will have a negative effect on the ecosystems by causing pollution.
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Anemia is a medical condition in which the affected person lacks enough red blood cells. What two effects will such a condition have on the patient?
The two effects will such a condition have on the patient are as follows:
The patient will have less hemoglobin in the blood.The patient will have a reduced oxygen supply to the cells.What is Anemia?Anemia may be defined as a condition that leads to a deficiency of hemoglobin or Red blood cells in the blood.
The complete question is as follows:
The patient will have less hemoglobin in the blood.The patient will have less immunity against bacteria.The patient will have a reduced oxygen supply to the cells.The patient will have a thicker blood composition.The patient will have increased platelets in the body.Red blood cells are accountable for carrying oxygen to cells and when a patient is suffering from anemia it leads to a reduced oxygen supply throughout the body.
Therefore, the correct options are A and C.
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_______ uses a rigid or flexible scope, which is inserted through the urethra and advanced into the renal pelvis and ureter.
The blank space in the task content should be filled with; Ureteroscopy.
What is a Ureteroscopy?The ureteroscopy examination, involves inserting a thin, flexible scope into the patients bladder and ureter (the urine-carrying tube that carries urine from the kidneys to the bladder). This is done in a bid to detect abnormalities such as kidney stones.
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Define fulcrum?
please help me
Answer:
Fulcrum is the type of machine which helps us to lift the material from any places
Answer:
The fixed point on which a lever turns in moving a body.
the virus known as ________ primarily infects lymphocytes.
The virus known as Epstein-Barr virus primarily infects lymphocytes
What are Epstein-Barr virusesEpstein- Barr viruses are viruses that causes mononucleosis. They are from the family Human gammaherpesvirus 4.
These viruses preferentially infects the human B- lymphocytes and may also infect the epithelial cells of the body.
Therefore, the virus known as Epstein-Barr virus primarily infects lymphocytes.
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What does it mean to describe a scientist as skeptical.
Answer:
To describe a scientist as skeptical means that they question both existing ideas and new hypotheses.
Explanation:
Skepticism is the act of suspending judgment (the opposite of jumping to conclusions) when evaluating an explanation or claims. It allows scientists to consider all possibilities and systematically question all information in the course of an investigation
pls help
question b and c
The sodium ions and potassium ions move between the plant cell and pond water by the process of diffusion.
What is diffusion?
Diffusion is the process by which substances move from region of high concentration to regions of low concentration.
Based on the chart, sodium ions and potassium ions move between the plant cell and pond water by the process of diffusion.
This is because the ions are at higher concentration in the pond water.
During the process, the ions move through ion channels in and out of the plant cell from the pond water.
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Did you model weathering, erosion, or both in this lab? Give an example of a step of the lab in which you modeled a process to support your statement. If you say that you did not model one process, describe a way in which you could model that process using the same graham cracker setup.
Modeling of weathering and erosion can be performed in lab.
Lab: Investigate Weathering and ErosionIn this lab, we will be modeling the processes that break down rock using graham crackers as the crust and water and ices erosion agents.
Materials:Graham crackers: at least 2 identical rectangular sectionsPlastic knifeFrostingBowl3 clear glassesEyedropper/medicine dropperWaterIce cube tray or similar freezable containers smaller than a graham crackerAdditional materials as needed for your investigation, such as more graham crackers, hot water, ice, lemon juice, or a drinking strawProcedure of Modeling Weathering and Erosion using graham cracker:
1. Fill the ice cube tray or other tiny containers with 100 drops of water in each of the two or three cells using the eyedropper. Make the water entirely solid by freezing it for however long(for 3-4 hrs.).
2. Insert one graham cracker section into the bowl. To create a ramp-like structure out of the Graham Cracker, place one end on the bowl's lip and the other end at the bottom. To secure the cracker to the side of the bowl, dab some icing on the back of the cracker.
3.Add water to the eyedropper. Hold the dropper at a height of about 1 inch above the cracker's top. the dropper over the cracker in the middle. Apply 100 drips, always aiming for the same area.
4.Keep an eye on what the cracker does. Keep a record of your findings.
5. Pour the water into a glass that is clear after removing the Graham cracker. Make notes about the water, grading its cloudiness among your observations.
6.In the same manner as in step 2, clean and dry the bowl and add a Graham cracker to it. Grab an ice cube and wipe it over the graham cracker until it melts completely.
7.Remove the graham cracker and pour the melted water into the clear glass.
Result:Appearance of water collected after is moved across graham cracker.
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how many nanometers is the best resolution achieved with using a light microscope?
The best resolution that can be achieved with light microscopes is; 200nm
What is the resolution of the microscope?The light microscope is also called optical microscope and it is a type of microscope that primarily uses visible light and a system of lenses to produce magnified images of smaller objects.
The best resolution that can be achieved with light microscopes is about 0.2 microns or 200nm because the maximum useful magnification it can provide is approximately 1,000x.
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Pulmonary edema and impaired ventilation occur during.
Pulmonary edema and impaired ventilation occur during cardiogenic shock.
What is cardiogenic shock?Cardiogenic shock is a type of shock that occurs when the heart is unable to pump enough blood that would be enough for the whole body.
The clinical manifestations of cardiogenic shock include:
Pulmonary edema and impaired ventilationPulmonary edema is the accumulation of fluid in the lungs while impaired ventilation which is unregulated intake and removal of oxygen and carbondioxide respectively from the body.
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What are the environmental impacts of wheat bran?
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Our comparative life cycle assessment shows that in flour system, using wheat bran for biocomposite production rather than wasting it, lowers the overall environmental impacts including global warming and fossil fuel depletion mainly due to bran fiber replacing polypropylene, and avoiding carbon dioxide emissions from .Answer:
Using wheat bran for bio-composite production rather than wasting it, lowers the overall environmental impacts including global warming and fossil fuel depletion mainly due to bran fiber replacing polypropylene, and avoiding carbon dioxide emissions from .
Bio-based materials are increasingly proposed as sustainable alternatives to fossil-based products. Before commercialization, however, the environmental performance of bio-based materials must be evaluated to ensure the sustainability goals are met. Bio-composites derived from natural fibers hold promises for achieving the desired sustainability while offering competitive performance.
For more Info: https://www.sciencedirect.com/science/article/pii/S0048969721016569
Explanation:
Hope It Helps!!!
HELPPP I need someone who’s really good at biology to help with my midterm I have less than a week and I’m barely half ways done
I’ll give you my accellus log in if you are serious and willing to help !! PLEASE ILL BE YOUR BEST FRIEND
Answer:
I could help!
Explanation:
i just took bio last year and got a 5 on the EOC
Please help me out
It would be appreciated
Answer:
A
Explanation:
A hypothesis is a prediction of what will happen which is waht happens in section A.
Section B is an observation of the cause of the rise in CO2 levels
What does an Epidemiologist study?
A. Diseases
B. Plants
C. The Epidermis
D. Insects
Answer:
Epidemiologists study outbreaks of diseases, the causes, locations, and how various communities are affected
More information -
TYPES OF EPIDEMIOLOGOST
1) infection control
2) Pharmaceutical
3) Medical
4).Infectious Disease
5). field
6) Molecular
7).Veterinary
