Answers
Answer:
removing wastes from the body
Explanation:
Excretory system is one of the organ systems in our body. The excretory system encompasses all the organs in the body associated with the function of REMOVING WASTES FROM THE BODY, which represents the primary function of the excretory system.
These organs in the excretory system which include; kidney, skin, lungs etc. all functions to remove one waste or the other. For example, the kidney removes URINE, the skin removes SWEAT, the lungs remove C02.
Answer:
removing wastes from the body
Explanation:
edge 2021
Related Questions
Being an athlete, adequate fluid intake is very important. Explain why dehydration is a concern.
Answers
Answer:
Dehydration is a concern since dehydration can lead to severe complications, such as seizures, swelling of the brain, kidney failure, shock, coma and even death. Signs and symptoms of dehydration include: Headache. Dizziness or lightheadedness.
Explanation:
How is transcription similar to replication and how is it different?
Answers
Answer:
Transcription and replication are important processes that occur in cells but have distinct differences.
Similarities between transcription and replication:
1. Both transcription and replication involve the synthesis of nucleic acids. In replication, DNA is copied to produce an identical DNA molecule, while in transcription, DNA is used as a template to produce RNA.
2. Both processes occur in the nucleus of eukaryotic cells, although replication also occurs in the cytoplasm of prokaryotic cells.
Differences between transcription and replication:
1. Template: In replication, the entire DNA molecule serves as the template for copying. However, in transcription, only a specific DNA segment, called a gene, serves as the template for synthesizing an RNA molecule.
2. Product: Replication results in the production of an identical DNA molecule, while transcription produces an RNA molecule that is complementary to the DNA template.
3. Enzymes involved: Replication requires the involvement of multiple enzymes, including DNA polymerase, helicase, and ligase. Transcription, on the other hand, involves RNA polymerase, which catalyzes the synthesis of RNA from the DNA template.
4. Base pairing: During replication, DNA bases pair with their complementary bases (A with T and C with G) to produce an exact copy. In transcription, RNA bases pair with complementary DNA bases (A with U and C with G), resulting in an RNA molecule complementary to the template DNA strand.
Overall, while transcription and replication involve the synthesis of nucleic acids, they differ in terms of their templates, products, enzymes involved, and base pairing patterns. These processes are essential for cell function and crucial in genetic information transfer and maintenance.
Explanation:
Mary uses the process of baking a cake as a model/metaphor to help her friend understand how genes function in people.
The ingredients in Mary's cake recipe are:
Flour
Milk
Eggs
Baking Powder
Sugar
Butter
Vanilla
What would happen if instead of sugar, Mary used salt? Would she end up with the same outcome? Explain.
How could you use Mary's cake to give an example of something that could be added that would result in a "neutral mutation"?
Answers
The thing which would happen if instead of sugar, Mary used salt is that there will be a different characteristics in the organism.
What is Phenotype?This is referred to as the set of observable characteristics or traits of an organism such as height, color etc while genotype on the other hand is a genetic constituent of organisms.
In a scenario where salt is replaced by sugar, then the genetic makeup for a particular organism changes thereby leading to the changes in the features or observable traits of the organism thereby making it the correct choice.
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Present state and current conditions of the atmosphere.
air mass
Weather
Cloud cover
temperature
Answers
Answer:
weather
Explanation:
Darla is a crime scene Investigator searching for latent bloodstains. She uses a chemical process that makes blood more visible, or darker, to the naked eye. Which chemical Is she using? Α) Luminol B) Fluoresceln C) Leuco Crystal Violet D) Ascetic acid
Answers
Answer:
C
Explanation:
Leuco Crystal Violet.
The Topic is Coal Production. What trend would you predict for the next ten years for each region? Western Interior and Appalachian
Answers
Explanation:
The new trend will probably be the technology that's in that certain year. As the trend in the modern days is all electronics or will have to do with electronics.
characteristics of contaminated water
Answers
Contaminated water is a type of water that is harmful to human beings due to the presence of harmful substances, pollutants, or impurities that make the water unsafe for drinking or other household uses. The characteristics of contaminated water can be identified through various indicators, which can either be physical, biological or chemical.
Physical indicators are visible and may include color, taste, and odor, while biological indicators are not visible and may include bacteria, viruses, and protozoa. Chemical indicators may include heavy metals, pesticides, and organic compounds, among others.
Physical Characteristics: Physical characteristics of contaminated water include cloudy or turbid appearance, unusual taste or odor, or discoloration of the water. The color may range from yellow to brown, blue to green, or even black.
Biological Characteristics: Biological characteristics of contaminated water include the presence of bacteria, viruses, or protozoa. These microorganisms can cause diseases such as diarrhea, typhoid, cholera, and dysentery.
Chemical Characteristics: Chemical characteristics of contaminated water include the presence of heavy metals such as lead, arsenic, or cadmium. Pesticides and fertilizers can also contaminate water and affect human health. Organic compounds like benzene and toluene can also be present in contaminated water, which can lead to health problems such as cancer and nerve damage.
Therefore, it is important to test water sources regularly to identify and monitor any contaminants that may be present. This can help prevent health problems associated with the use of contaminated water.
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CAN SOMEONE PLEASE HELP ME WITH THIS SCIENCE QUESTION I WILL MARK YOU BRAINLIEST THANK YOU !!!
Answers
Answer:
C. Non-depletable
Explanation:
Answer is C. because it is replaced often and cannot be completely used up
A person who has Diabetes has difficulty controlling the glucose levels in their blood and must take Insulin to regulate it. Which
characteristic of life do they need assistande with?
C A. Contain genetic material
B. Growth and development
C. Homeostasis
D. Reproduction
Answers
Answer:
C. Homeostatis
Explanation:
By definition, homeostasis is a state of balance. A person with diabetes needs to take insulin in order to balance their glucose levels. Therefore they have difficulty with balancing the glucose levels in gheir blood. So balancing glucose levels would relate to homeostasis.
Planets A and B have the same size, but planet A is half the mass of planet B.
Which statement correctly explains the weight you would experience on each
planet?
OA. You would weigh the same on both planets because your mass
would be the same on both.
OB. You would weigh more on planet A because it has less mass than
planet B.
OC. You would weigh the same on both planets because the planets
are the same size.
OD. You would weigh less on planet A because it has less mass than
planet B.
Answers
The statement that would correctly explains the weight you would experience on each planet is You would weigh less on planet A because it has less mass than planet B. Option D
How does mass affect weight?Weight is the force experienced by an object or person due to gravity. Since it is as a result of gravitational force, it depnds on both the mass of the objct or person and the level of gravity of the planet.
Gravity is dependent on th mass of the planet, and if planet A has lesser the mass of planet B, its gravitational force will be most likly be weaker.
This therefore means a person is going to weigh less on planet A than on planet B, even though both planets have the same size.
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Directions: Read the paragraph and look at the chart below. Use this
information to fill in the second column of the scientific inquiry chart,
7 through 9.
a
You wonder how air temperature will affect the air
inside a balloon. You know that when cold air is warmed, it
expands. You have seen hot air balloons in which the air
inside the balloon is heated to make the balloon, basket,
and pilot rise into the air. In science class, you learned that
cold air is denser than hot air.
You blow up a balloon and tie the end. First you place
the balloon in a refrigerator for a while. Then you place the
balloon in direct sunlight for a while.
YOUR SCIENTIFIC INQUIRY
STEPS IN SCIENTIFIC INQUIRY
State the problem or question. 7.
Use your own observations,
using your senses
8.
Research information. What
have others discovered about
the problem?
9.
Form an explanation, or a
best guess, that can be tested
by doing an experiment.
Chapter 1. Scientific Inquiry
Copying is illegal
Education
Answers
Answer:
JH
Explanation: Communicating openly, clearly, and with empathy will help in building rapport with a team and boost their spirit productively. Establishes Transparency – Transparency generates trust among employees. Trust creates an environment where people are honest and accountable.Jan 19, 2018
name the layers of the thin skin
Answers
Answer:
the answer is
Explanation:
stratum,basale,stratum spinosum,stratum granulosum,and stratum corneum
Describe the characteristics of P-waves, S-waves, Love waves and Rayleigh waves, and explain how they are similar and different.
Answers
Internal waves:
-P-waves: primary waves because they are the first to arrive at a seismograph. They are compressive-type waves and cross the planet via solid, gas, or liquid.
-S-waves: secondary waves. They are transversal-type and their vibration is perpendicular to their movement and propagation. They can't cross through the Earth's nucleus.
Superficial waves:
-L-waves: love waves. They travel above the Earth from side to side, as a result of the interference of multiple S-waves propagated on a superficial elastic layer.
-R-waves: Rayleigh waves, they're a superficial acoustic type of wave that travels along the surface of solids.
how many cm are in a 2500 mm rope?
Answers
250
Formula:
Divide the length value by 10
Answer:
250
Explanation:
divide by length by 10
In need of help PLEASE….screenshot attached
Answers
1. How does calcium ion concentration in blood affect muscle contraction? Does it lead to tetany in certain cases? How will you correlate fluctuation in blood calcium with tetany?
Answers
Calcium ion concentration in the blood affects muscle contraction because actin and myosin filaments return to their initial places as calcium ions leave the muscle cells, causing the muscle to relax.
The muscle relaxes as calcium ions leave the muscle cells, causing the actin and myosin filaments to return to their initial positions. In other words, a lower calcium level in muscles is indicated by a larger level of calcium ions in the blood. Muscle contraction will suffer as a result of this.
Muscle contraction results from the thin and thick filaments sliding apart from one another when Ca2+ is present in the cytosol. Similar to this, as the Ca2+ level drops, the binding sites are covered, causing contraction to cease.
Low calcium levels in bodily fluids due to impaired parathyroid gland function occur in cases of tetany. Periodic, excruciating muscle spasms (wild contractions) and trembling are symptoms of tetany.
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Adults with more than a twelve (12) month history of migraines
Answers
Based on the information in the problem, the clinical phase of the study which is centered on migraine is Phase 3.
What is a migraine?Recurrent headaches of moderate to severe intensity, which can be accompanied by symptoms like nausea and vomiting as well as sensitivity to light and sound, are the hallmark of the headache illness known as migraine. Migraines can greatly affect everyday activities and quality of life and last anywhere from a few hours to several days.
Phase 3 trials are designed to test the effectiveness of a treatment in a larger population, typically involving several hundred to several thousand participants, and are conducted after preliminary evidence of efficacy has been demonstrated in Phase 2 trials.
Adults with more than a 12-month history of migraines were assigned randomly in a double-blinded study to receive treatment with experimental drug X (10 or 20 mg/day) or placebo. The primary efficacy measure was the reduction in severity of the migraine attacks. Enrollment was 1200 subjects. Which of the following best describes the clinical phase of this study?
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There are three sources of genetic variation in sexual reproduction. Determine which of the following statements accurately describes which of these are considered random and which are not
Answers
Genetic recombination and independent assortment are considered random sources of genetic variation, while mutations can occur randomly or due to specific factors.
In sexual reproduction, the three sources of genetic variation are genetic recombination, independent assortment, and random mutations. Among these sources, genetic recombination and independent assortment are considered random processes, while mutations are not entirely random.Genetic recombination occurs during meiosis when homologous chromosomes exchange genetic material through crossing over. This process is considered random as the precise locations where recombination events occur are unpredictable.Independent assortment refers to the random alignment and separation of homologous chromosomes during meiosis I. The random positioning of maternal and paternal chromosomes contributes to genetic diversity in offspring.On the other hand, mutations are not entirely random as they can be influenced by various factors such as exposure to mutagens or errors in DNA replication. However, the specific mutations that occur at particular loci are generally considered random events.Therefore, the accurate statement would be that genetic recombination and independent assortment are considered random sources of genetic variation, while mutations are influenced by both random and non-random factors.For more such questions on Genetic variation:
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What was the purpose of the experiment?
Type your answer here:
Which properties are more useful in determining the identity of an unknown substance: intensive or extensive? Explain.
Type your answer here:
Write a hypothesis based on observations and scientific principles.
Type your answer here:
Experimental Methods
What tools did you use to collect your data?
Type your answer here:
Describe the procedure that you followed to conduct your experiment.
Type your answer here:
Data and Observations
Record your observations.
Type your answer here:
Conclusions
What conclusions can you draw about the identity of the unknowns? Write an evidence-based claim.
Type your answer here:
Evaluate the procedure used in this experiment by considering the properties used to identify the unknowns and the number of knowns that were tested. Revise the experimental design by proposing ways to modify the experiment to increase your certainty in the identity of the unknowns.
Type your answer here:
Answers
Answer:
Answer 1: The purpose of an experiment is to test a hypothesis.
Answer 2: Scientists commonly measure intensive properties to determine a substance's identity, whereas extensive properties convey information about the amount of the substance in a sample.
Answer 3: These principles are at work in the fundamental elements of the scientific method, such as formulating a hypothesis, designing an experiment to test the hypothesis, and collecting and interpreting data. In addition, more particular principles characteristic of specific scientific disciplines influence the methods of observation; the acquisition, storage, management, and sharing of data; the communication of scientific knowledge and information; and the training of younger scientists.
Answer 4: Data collection tools refer to the devices/instruments used to collect data, such as a paper questionnaire or computer-assisted interviewing system. Case Studies, Checklists, Interviews, Observation sometimes, and Surveys or Questionnaires are all tools used to collect data.
Answer 5: The purpose of an experiment is to test out your hypothesis. If your hypothesis is correct, then it is a theory that could work every single time the experiment has been performed by scientists.
Answer 6: ?
Answer 7: the first step toward teaching my students how to critically think about how they structured an argument or explanation was to implement the Claim, Evidence, Reasoning (CER) framework. While the premise behind CER isn’t anything new to the way science teachers already think, it provides an entirely different approach toward how students connect their experiences and previously learned content into something that is much more reflective of being scientifically literate.
Answer 8: ?
Explanation:
Hope this helped! :)
The purpose of an experiment is to test a hypothesis.
The properties that are more useful in determining the identity of an unknown substance are the intensive properties.
The tools that can be used to collect data are known as data collecting tools. Examples include questionnaires, observations, etc.
The aim of an experiment is to test a hypothesis, demonstrate a known fact, or provide insight into cause-and-effect. It demonstrates the outcome that occurs when a particular force is manipulated.
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Below are the reduction half reactions for chemolithoautotrophic nitrification, where ammonia is a source of electrons and energy and oxygen is the terminal electron acceptor.
NO2- + 6e- -> NH4+ (+0.34 volts)
O2 + 4e- -> 2H2O (+0.82 volts)
Using the information given, calculate the ΔE for this reaction, balance the full reaction to determine the n, the number of electrons transferred when 440 moles of NH4+ are oxidized. Finally, use the simplified Nernst Equation
ΔG = -nFΔE, where F = 96.5 kJ (mol e- × V)-1
to determine the Gibbs Free energy available to do work!
Report your answer in kJ rounded to two decimal places.
Answers
The Gibbs free energy available to do work for the reaction is approximately -15,427.20 kJ, rounded to two decimal places.
To calculate the Gibbs free energy (ΔG) available to do work for the given reaction, we need to use the formula:
ΔG = -nFΔE
where ΔE is the potential difference, n is the number of electrons transferred, and F is the Faraday constant (96.5 kJ/(mol e- × V)).
First, let's calculate the ΔE for the reaction by subtracting the reduction potential of the anode (NH4+ to NO2-) from the reduction potential of the cathode (O2 to H2O):
ΔE = E(cathode) - E(anode)
= (+0.82 V) - (+0.34 V)
= +0.48 V
Next, we need to balance the full reaction to determine the number of electrons transferred (n) when 440 moles of NH4+ are oxidized. The balanced equation is as follows:
8NH4+ + 6O2 -> 8H2O + 6NO3- + 16H+
From the balanced equation, we can see that for every 8 moles of NH4+ oxidized, 6 moles of electrons are transferred.
So, the number of electrons transferred (n) when 440 moles of NH4+ are oxidized can be calculated as:
n = (6 mol e- / 8 mol NH4+) × 440 mol NH4+
= 330 mol e-
Therefore, when 440 moles of NH4+ are oxidized, 330 moles of electrons are transferred.
Now, let's substitute the values into the equation:
ΔG = -nFΔE
= -(330 mol e-) × (96.5 kJ/(mol e- × V)) × (+0.48 V)
Calculating this expression, we find:
ΔG ≈ -15,427.20 kJ
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Where does about 5% of the Sun's
energy reflected by Earth's
surface go?
A. into the trees
3. onto the clouds
C. into the ocean
D. back into space
Answers
Answer:
D: space
Explanation:
because it is being reflected it is just moving from where it came from, and if not its goes off of earth.
Blood pressure is? Group of answer choices 120/80 140/80 140/100 120/100
Answers
Answer:
Normal/Good BP is 120/80
Explanation:
An example of a reaction to a stimulus is
A. A boy smelling a flower
B. A person tapping on a friend’s shoulder
C. A loud clap of Thunder following lightning
D. Eyes blinking due to smoke in the air
Answers
Answer:
D. Eyes blinking due to smoke in the air.
Explanation:
An example of a reaction to stimulus is eyes blinking due to smoke in the air.
Both plant and animal cells have
Answers
Answer:
Both animal and plant cells have mitochondria
Explanation:
May help........
Which is part of the cell theory
Answers
Answer:
The first part states that all organisms are made of cells. The second part states that cells are the basic units of life. These parts were based on a conclusion made by Schwann and Matthias Schleiden in 1838, after comparing their observations of plant and animal cells.
Explanation:
if IT helped uh please mark me A BRAINLIEST :))what is vertebral column?
Answers
(ver-TEE-brul KAH-lum) The bones, muscles, tendons, and other tissues that reach from the base of the skull to the tailbone. The vertebral column encloses the spinal cord and the fluid surrounding the spinal cord. Also called backbone, spinal column, and spine. Enlarge
explain pressure flow hypothesis
Answers
Answer:
Flow-Pressure Hypothesis It suggests that water containing food molecules travels through the phloem under pressure. The differential in water concentration between the solution in the phloem and the comparatively pure water in the neighboring xylem ducts causes the pressure.
Explanation:
Answer:
It proposes that water containing food molecules flows under pressure through the phloem
Explanation:
It proposes that water containing food molecules flows under pressure through the phloem. The pressure is created by the difference in water concentration of the solution in the phloem and the relatively pure water in the nearby xylem ducts
Hopes this helps! Have a nice day <3!
20 points help quickly
Why do cells in human bone marrow regularly divide to produce new cells?
Answers
Answer:
stem cells regularly divide to produce new body tissues for maintenance and repair
Explanation:
PLEASE HELPPP!!!!!!
1) Use the following situation and tables to choose the correct answer.
Randomly sampled students from two high schools were asked what color the district should paint the new stadium. The results are presented in the following tables:
Stadium Color - North Valley High
Color: Survey Results:
silver 30
blue 54
teal 36
Stadium Color - South Hills High
Color: Survey Results:
silver 78
blue 24
teal 18
Make an inference comparing which color each of the two high school populations should choose for the stadium, based upon a qualitative comparison of the sampled data.
A.) North Valley High should choose silver to give the minority of the students who selected silver a win in the selection process. South Hills High should choose teal because a minority of their sampled students selected the color teal than other colors.
B.) North Valley High should choose blue because more of the sampled students selected the color blue compared to the other colors in the survey. South Hills High should choose silver because more of the sampled students selected the color silver than other colors.
C.) North Valley High should choose teal because that color was selected between the other two colors and would appeal to a broader base of students. South Hills High should choose blue in order to appeal to a broader base if its students.
Answers
North Valley High should select blue because more of the sampled students picked the color blue compared to the other colors in the survey. South Hills High should select silver because more of the sampled students picked the color silver than other colors.
This is the correct inference based on the given data. The survey results show that blue was the most popular color among the North Valley High students, and silver was the most popular color among the South Hills High students. Therefore, it would make sense for each high school to choose the color that was most popular among their respective student populations.
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Which of the following is the BEST hypothesis for the student's investigation?
A
The cells will stay the same size in the 0.9% NaCI solution, swell in distilled water, and shrink in the 15% NaCI solution.
B
The cells will shrink in distilled water, stay the same size in the 0.9% NaCl solution, and swell in the 15% NaCI solution.
The cells will stay the same size in distilled water and in the 0.9% NaCI solution, but they will swell in the 15% NaCI solution.
D
The cells will swell in the distilled water and in the 15% NaCI solution, but they will stay the same size in the 0.9% NaCI solution.
Answers
The BEST hypothesis for the student's investigation is option "A" The cells will stay the same size in the 0.9% NaCI solution, swell in distilled water, and shrink in the 15% NaCI solution.
what is hypertonic solution?
Hypertonic can be explained as a solution with higher osmotic pressure than another solution which is also known as a solution that contains a higher concentration of solutes compared to the cell and less water. hypertonic solutions consist of NaCl (normal saline/sodium chloride) etc.
what is osmotic pressure?
Osmotic pressure can be described as a pressure which needs to be applied to a solution to stop the inward flow of its solvent molecules across a semipermeable membrane.
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