Answers
Answer:
A control group setup in an experiment is used to see if there are other variables in play during the experiment. Say I was to test which type of blood is a shark's favorite, my control would be putting red paint in one of the set ups to see if the shark is just interested in the red color of blood, instead of the other types of blood.
Explanation:
Answer:
The control group does not receive the independent variable during the experiment.
Explanation:
The group that will receive the independent variable during the experiment is the experimental group. The dependent variable is what you will measure as a result. The control group is not receiving the independent variable during the group, as it is what you're measuring the experimental group to.
Related Questions
this is a simple diagram of a food chain:
producers --> herbivores --> carnivores --> top carnivores
if all the carnivores die out, why does the number of producers decrease?
i'm not sure but what im thinking is, well if carnivores die, then not many herbivores will die, therefore there isn't that natural soil fertilizer due to the dead bodies.
Answers
Explanation:
By all the carnivores, I assume it means regular and top carnivores. This will let the herbivores live longer which means they eat more food, food being producers causing producer numbers to fall drastically
A student applies 55 N of force to a box on four types of surfaces. Each surface has a different value for Ffric-
On which surface is the student not able to move the box?
A. A
B. C
C. D
D. B
Answers
Answer:
D
Explanation:
The surface is the student not able to move the box is D.
What is force?Force is defined as an outside force that has the potential to alter how a body is moving or resting. A force is not something an object "has in it" or that it "contains." One thing experiences a force from another. The idea of a force encompasses both living and non-living things. The body can change its size, shape, and direction when force is applied. As we discovered in a previous session, forces are significant because they induce modifications to motion.
Net force is defined as all of the forces pulling on a thing combined. The net force, which is a single force, replaces the original forces' influence on the particle's motion. The top 5 words that are similar to "net force" in terms of this word similarity engine are resultant force, force, acceleration, physics, and rotation.
Thus, the surface is the student not able to move the box is D.
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If you added 1 ml of an aqueous solution of NaCl at 0.4 mol/l to 9 ml of water, what would be the final concentration of NaCl in the solution?
Answers
Taking into account the definition of dilution, the final concentration of NaCl in the solution is 0.04 mol/L.
DilutionWhen it is desired to prepare a less concentrated solution from a more concentrated one, it is called dilution.
Dilution is the process of reducing the concentration of solute in solution, which is accomplished by simply adding more solvent to the solution at the same amount of solute.
In a dilution the amount of solute does not change, but as more solvent is added, the concentration of the solute decreases, as the volume (and weight) of the solution increases.
A dilution is mathematically expressed as:
Ci×Vi = Cf×Vf
where
Ci: initial concentrationVi: initial volumeCf: final concentrationVf: final volumeFinal concentrationIn this case, you know:
Ci= 0.4 mol/LVi= 1 mLCf= ?Vf= 1 mL of aqueous solution of NaCl + 9 mL of water= 10 mL solutionReplacing in the definition of dilution:
0.4 mol/L × 1 mL= Cf× 10 mL
Solving:
(0.4 mol/L × 1 mL)÷ 10 mL= Cf
0.04 mol/L= Vf
In summary, the final concentration of NaCl in the solution is 0.04 mol/L.
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What is green building?
Answers
Answer:
Green building refers to the application of processes that take place throughout a building's life-cycle including planning, designing, construction, maintenance, renovation.
Explanation:
Green building is also known as green construction or sustainable building. It refers to the application of processes that take place throughout a building's life-cycle including planning, designing, construction, maintenance, renovation. All of these processes are environmentally responsible and resource-efficient. Green building ensures efficient use of land, energy, water, and materials.
Answer:
It is the practice of maximizing the efficiency with which buildings and their sites use resources (energy, water, and materials).
It is the practice of minimizing building impacts on human health and the environment.
Green building is also known as sustainable or high-performance building.
Explanation:
Edu 2021
The part of Earth that contains living things is:
Biome
Biosphere
Ecosystem
Answers
Answer:
It is Biosphere.
The Biosphere --contains all the planet's living things. This sphere includes all of the microorganisms, plants, and animals of Earth. Within the biosphere, living things form ecological communities based on the physical surroundings of an area.
Please help me with this to fill in the black correct answers. This is specifically anatomy and physiology science
1. The reproductive system has both endocrine and exocrine functions. The exocrine function is stimulated by this hormone produced in the anterior pituitary______ and produces this in the female _____.
2. The endocrine function is stimulated by this hormone in the anterior pituitary_____ and produces this in the female_____
3. The reproductive system has both endocrine and exocrine functions. The exocrine function is stimulated by this hormone produced in the anterior pituitary______ and produces this in the male____
4. The endocrine functions is stimulated by this hormone in the anterior pituitary _____ and produces this in the male_____
Answers
1. The exocrine function is stimulated by this hormone produced in the anterior pituitary: follicle-stimulating hormone (FSH), and produces ova (eggs) in the female.
2. The endocrine function is stimulated by this hormone in the anterior pituitary: luteinizing hormone (LH), and produces estrogen and progesterone in the female.
3. The exocrine function is stimulated by this hormone produced in the anterior pituitary: luteinizing hormone (LH), and produces sperm in the male.
4. The endocrine function is stimulated by this hormone in the anterior pituitary: follicle-stimulating hormone (FSH), and produces testosterone in the male.
1. The exocrine function of the reproductive system in females is stimulated by the hormone produced in the anterior pituitary called follicle-stimulating hormone (FSH), which promotes the production of ovarian follicles. The exocrine product in females refers to the release of eggs or oocytes from the ovaries during ovulation.
2. The endocrine function of the reproductive system in females is stimulated by the hormone luteinizing hormone (LH) produced in the anterior pituitary. LH triggers the release of estrogen and progesterone from the ovaries, which regulate the menstrual cycle, promote the development of the uterine lining, and prepare the body for pregnancy.
3. The exocrine function of the reproductive system in males is stimulated by the hormone produced in the anterior pituitary called luteinizing hormone (LH), which stimulates the production of testosterone in the testes. Testosterone is the primary male sex hormone and is responsible for the development of male reproductive organs and secondary sexual characteristics.
4. The endocrine function of the reproductive system in males is stimulated by the hormone follicle-stimulating hormone (FSH) produced in the anterior pituitary. FSH promotes the production of sperm cells (spermatogenesis) in the testes.
Overall, the reproductive system has both endocrine and exocrine functions, with the anterior pituitary gland playing a crucial role in regulating these functions through the production of specific hormones.
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Which of the following accurately describes the relationship between
feedback mechanisms and homeostasis?
A. Feedback mechanisms are the organism's response to changing
conditions. They keep working until internal conditions return to
normal.
B. Feedback mechanisms counteract homeostasis.
C. Feedback mechanisms have no relationship to homeostasis.
D. A feedback mechanism is initiated when conditions are stable for
too long. They work until the organism wakes up and begins to
move around.
Answers
The correct answer is A. Feedback mechanisms and homeostasis are closely related in that feedback mechanisms help to maintain homeostasis in living organisms. (option-a)
Homeostasis is the process of maintaining a stable internal environment despite external changes. Feedback mechanisms are the physiological responses of an organism to maintain this stability. For example, if the body temperature drops, the feedback mechanism in the body responds by shivering to generate heat and maintain the internal temperature. Similarly, if the body temperature rises, the feedback mechanism in the body responds by sweating to cool down and maintain the internal temperature. In both cases, the feedback mechanism works until the internal conditions return to normal, thereby maintaining homeostasis. Therefore, feedback mechanisms are essential for the maintenance of homeostasis in living organisms.(option-a)
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When doing the experiment of crossing drosophila. What are the prevaution and sources of error ？
Answers
Explanation:
Precautions:
1. Proper handling of drosophila: It is important to handle drosophila with care, avoiding rough handling and exposure to extreme temperatures.
2. Keeping the experimental setup clean: The experimental setup should be kept clean to avoid contamination and the spread of diseases.
3. Selection of appropriate crosses: The selection of appropriate crosses should be done carefully to obtain accurate results.
4. Use of appropriate food and media: The use of appropriate food and media is crucial for the growth and survival of drosophila.
5. Proper labeling and record-keeping: Proper labeling and record-keeping of experimental setups and crosses help to keep track of the results.
Sources of Error:
1. Mutation: Mutation can occur randomly in drosophila, leading to unpredictable and unexpected results.
2. Environmental factors: Environmental factors such as temperature and humidity can affect the growth and development of drosophila, leading to inaccurate results.
3. Contamination: Contamination with other organisms or pathogens can affect the results of the experiment.
4. Cross-contamination: Cross-contamination of different drosophila strains can affect the results of the experiment.
5. Human error: Human error, such as incorrect labeling or accidental mixing of samples, can affect the accuracy of the results.
Hopes this helps
What is the mass, volume, density, and substance for Block C:
Answers
The mass and volume of Block C are needed to calculate its density, and the substance is unknown.
To determine the mass and volume of Block C, it must be measured using appropriate tools. Once these values are obtained, the density can be calculated by dividing the mass by the volume.
The substance of Block C is unknown, but if it is solid, its density can be compared to known densities of common substances to make an educated guess.
If it is a liquid, its density can be compared to the densities of known liquids to identify the substance.
The density of Block C can provide valuable information about its properties and potential uses in various applications.
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The ________ provides structure and support to the cell.
lysosome
vacuole
mitochondria
cytoplasm
cytoskeleton
Answers
Answer:
cytoskeleton.
como hago el s3x0
en serio que hago tengo 98 i no se que hacer
Answers
Plants take up carbon dioxide (CO2) during photosynthesis and release it during respiration. According to the article, how might increasing global temperatures affect the amount of carbon dioxide plants release during respiration?
Answers
Additionally, higher temperatures can also have a negative impact on plant growth and development, which can further increase the amount of carbon dioxide released during respiration. For example, if plants are exposed to prolonged periods of high temperatures, they may become stressed and allocate more resources to respiration instead of growth, which can result in increased carbon dioxide emissions.
Overall, increasing global temperatures are likely to have complex and potentially negative impacts on plant growth, respiration, and carbon dioxide emissions.
There are ____ molecules of air at high elevations, so air pressure is less. a. fewer c. more b. the same number of d. no Please select the best answer from the choices provided A B C D
Answers
Answer:
A. Fewer
Explanation:
This is the only answer that makes sense
what is anemia, why do people with sickle cell anemia have anemia?
Answers
Answer:
que es la anemia
Insuficiencia de glóbulos rojos saludables debido a la falta de hierro en el cuerpo.
por que las personas con anemia de celulas falciformes tienen anemia
La anemia de células falciformes es causada por una mutación en el gen que le dice a tu cuerpo que produzca el compuesto rico en hierro que hace que la sangre sea roja y permite que los glóbulos rojos transporten el oxígeno de los pulmones a todo el cuerpo
Explanation:
Answer:
sickle cells typically die in 10 to 20 days,l leaving a shortage of red blood cells
Explanation:
the lack of red blood cells can make a animal have anemia
Why is NAD+ so important if the cell takes the anaerobic pathway, so glycolysis to fermentation? Does the atp made in glycolysis depend on the NAD+ conversion to NADH in the first step? I am confused on why NAD+ is so important to atp production
Answers
Answer:
NAD+ (nicotinamide adenine dinucleotide) is indeed crucial for ATP production, even in anaerobic pathways such as glycolysis followed by fermentation. Allow me to explain the significance of NAD+ and its role in ATP production.
During glycolysis, glucose is broken down into pyruvate, producing a small amount of ATP and NADH. The conversion of NAD+ to NADH occurs during the oxidation of certain molecules, including glucose, in the pathway. This conversion is essential because NADH carries high-energy electrons that can be used in subsequent steps to generate more ATP.
In aerobic respiration, NADH is further utilized in the electron transport chain (ETC) within the mitochondria. The ETC transfers electrons from NADH to oxygen, generating a significant amount of ATP through oxidative phosphorylation. However, in anaerobic conditions where oxygen is limited, like during fermentation, the ETC cannot function.
Here's where NAD+ becomes critical. In order to keep glycolysis running and continue generating ATP, the NADH produced during glycolysis must be converted back to NAD+. This allows glycolysis to continue producing ATP, even without the presence of oxygen. Without a mechanism to regenerate NAD+, glycolysis would halt due to a lack of NAD+, leading to a severe reduction in ATP production.
Fermentation pathways differ depending on the organism, but they all involve the regeneration of NAD+. For example, in lactic acid fermentation, pyruvate is converted into lactate, which involves the transfer of electrons from NADH to pyruvate, regenerating NAD+. Similarly, in alcoholic fermentation, pyruvate is converted into ethanol, again regenerating NAD+.
In summary, NAD+ is essential in anaerobic ATP production because it serves as a coenzyme that accepts electrons and facilitates the conversion of NADH back to NAD+. By regenerating NAD+, cells can sustain glycolysis and continue producing ATP, even in the absence of oxygen.
Why does an eclipse happen? The Sun burns out quickly and reignites due to changes in magnetic energy. b A celestial object moves into the shadow made by another celestial object. c Stars twinkle which creates a delay in light transfer. d The planets Mars and Venus interfere with Earth's orbit. NEED HELP
Answers
An eclipse occurs when celestial object moves into the shadow made by another celestial object. Option A
What is an eclipse?The term eclipse refers to a situation in which in which one celestial body casts a shadow on another celestial body. In this case, we could have the earth cast its shadow on the earth or the sun as the case may be.
The kinds of eclipse that could occur are;
Eclipse of the sunEclipse of the moonThis brings us to conclude that; an eclipse occurs when celestial object moves into the shadow made by another celestial object. Option A
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Question:
During the Calvin cycle of photosynthesis, a plant cell uses carbon dioxide to synthesize large carbohydrates. Which statement about this reaction is true?
Answer: Consumes Energy
Answers
The statement that is true regarding the reactions that occur in the Calvin cycle is that it consumes energy.
What is Calvin cycle?Calvin cycle of photosynthesis is a series of biochemical reactions that take place in the stroma of chloroplasts in photosynthetic organisms.
The Calvin cycle also called light independent or dark reaction is the second stage of the photosynthetic process. It is so called because it does not require light to occur.
The Calvin cycle makes use of the products of the light stage (ATP and NADPH) to synthesize carbohydrates.
However, the series of reaction is an energy consuming one, which makes use of ATP to occur.
Therefore, the statement that is true regarding the reactions that occur in the Calvin cycle is that it consumes energy.
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Conclusion:
Include the following as a summary paragraph in the conclusion of your lab report:
Analysis of the results of the experiment
I
Based on your data, describe the overall trend for each of the five
factors that were measured?
What information do your graphs show? Describe the correlation
between the two factors that you graphed
● Rationale for the support or rejection of the hypothesis
Questions:
Using what you have learned in the lesson and the virtual lab activity, answer the
following questions in complete sentences:
1. Identify the abiotic and biotic factors in this lab.
2. Describe the symbiotic relationship between each of the organisms.
3. Explain how the limiting factors affect carrying capacity in each population.
Answers
Answer:
Your conclusion will include a summary of the lab Describe the overall trend for each of the five factors that were measured
Explanation:
Describe how you could make up the following glucose concentrations when given a 1% standard solution(there may be several different ways for each) A)0.02%. B)0.003%. C)0.0005%
Answers
0.02%. glucose concentrations when a 1% standard solution is administered.
How is 1% glucose solution made?By multiplying (mass/volume) by volume and keeping in mind that 1 g in 100 ml equals a 1 percent solution, you can determine how much glucose is required to form a solution of a certain percent. For this example, multiply (20/100) by 500 to create a total solution of 500 ml of 20 percent glucose.
What is 1% of a concentration?A 1% (w/w) concentration is created by combining 1 g of one substance with 100 g of another, such as 1% (w/w) salt in sand. Another vintage signifier of concentration that you could still come across (simply take a look at the side of the term "parts per million (ppm)" is used.
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DNA is made up of pairs of nitrogenous bases. Which of the following
nitrogenous bases is paired correctly?
A. Guanine-guanine
B. Adenine-thymine
C. Adenine-guanine
D. Cytosine-thymine
Answers
DNA is made up of pairs of nitrogenous bases. The nitrogenous bases is paired correctly is Adenine-thymine. Thus, option B is correct.
How DNA is made up off?The DNA is formed by the nitrogen bases adenine, cytosine, guanine and thymine. The pairings between bases are -Adenine with Thymine and Cytosine with guanine. Nitrogenous bases are heterocyclic, planar, and relatively water-insoluble aromatic molecules.DNA consist of two types of nitrogenous bases-Purines and Pyrimidines.
Purines are the two common purine bases found in DNA are Guanine and Adenine. Pyrimidine-The two common pyrimidine bases found in DNA are Thymine and Cytosine.
According to the base-pairing rule in DNA- Adenine (purine) pairs with Thymine (Pyrimidine) and Guanine (purine) pairs with Cytosine. Adenine pairs with Thymine with two hydrogen bonds and Guanine pairs with Cytosine with three hydrogen bonds.
Thus, option B is correct.
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Diagram a motion graph of a bicycle that travels 80 meters in 16 seconds. What is the speed in meters/second?
Answers
Answer:
50
Explanation:
Compare the nitrogen, carbon, and oxygen cycles.
Answers
Answer:
The nitrogen, carbon, and oxygen cycles are all biogeochemical cycles that involve the movement of an element through different systems. Each of these nonliving elements is incorporated into living organisms at some point in the cycle. The nitrogen, carbon, and oxygen cycles are all essential for life
Explanation:
these are the nitrogen cycle and oxygen cycle.
Choose the two correct answers that describe the result of meiosis 2.
a) meiosis produces 2 somatic cells.
b) all the cells are clones.
c)meiosis produces 4 gametes.
d) all the cells are different from the original cell.
Answers
Answer:
c and d
Explanation:
Meiosis produces 4 gametes or haploid cells. They can't be clones because that is mitosis and if they are haploid then the chromosomes are cut in half.
20. The first microscopes were built by Robert Hooke and Antoine van Leeuwenhoek.
a.
True
b. False
Answers
Answer:
True
Answer:
Step by step explanation
True
Write a letter to congressman about climate change
Answers
Answer:
I don't know this sorry
I read in class 8
I think this question is from class 6
in which organ (crop or gizzard) did you find the contents to be most ground up and why?
Answers
The gizzard is the muscular organ located between the crop and the small intestine in birds. Its primary function is to mechanically grind and break down food, as birds do not have teeth to chew their food.
The gizzard accomplishes this through strong muscular contractions that crush and grind the food against small stones and grit that the bird has ingested.
Therefore, it is likely that the contents found in the gizzard would be more ground up compared to those found in the crop. The crop is a storage organ located at the base of the bird's neck that serves as a temporary holding place for food before it enters the digestive system. While the crop may soften and partially break down food through the secretion of digestive enzymes, it does not have the same mechanical grinding function as the gizzard.
In summary, the gizzard is the organ responsible for grinding and breaking down food in birds, while the crop primarily serves as a temporary storage organ. Therefore, the contents found in the gizzard are likely to be more ground up compared to those found in the crop.
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What kind of mechanisms
does the body have to stop
mutations from occurring?
A. cell death
B. viral infection
C. meiosis
D. repairing and proofreading
mechanisms this
Answers
Identify the substance. cholesterol carbohydrate lipid nucleic acid protein
Answers
Answer:
Lipid
Explanation:
Cholesterol is a steroid which is a subclass of lipid
I need help on these science thingies
Answers
Answer:
5. BAD 6.A D the conditions for a plant to grow is warm moist wether
HURRY PLEASE!!!!!
Which of the following is NOT a main function of the skeletal system?
a Produces blood cells
b Maintains homeostasis
c Provides shape and support
d Protects organs
Answers
Explanation:
B is your correct answer