Why is milk white? and there is no diffrent in various mamals?
Answers
Answer:
Milk is naturally a white substance due to the make-up of water and other components including fat and protein that mix together to form tiny particles which reflect light. There is a difference in mammals milk; for example, hippos milk is pink.
Explanation:
Related Questions
1. For each statement, circle T
or F for true or false. In each
blank, write the number of the
SENTENCE that gives the best
evidence for the answer.
a. Frogs, lily pads, and fish are
parts of a pond community.
T. Or. F. Sentence ________
b. An ecosystem includes only a
living things.
T. Or. F. Sentence ________
c. All the barn owls in a state
park make up a population of
owls.
T. Or. F. Sentence ________
d. Squirrels and mice are two
different populations of
animals.
Τ. Or. F. Sentence ________
e. A desert community is made up
of cactus, sand, and camels.
Τ. Or. F. Sentence ________
f. A desert ecosystem can
include cactus, sand, and
camels.
T. Or. F. Sentence ________
2. What is the most likely
meaning of interact as it is
used in sentence 8?
a. affect each other
b. grow together
c. reproduce
d. breathe
Write the number of the other
sentence (not sentence 8) that
gives the best evidence for the
answer.
3. Name an ecosystem.
__________________________
List 5 populations of organisms you
would expect to find in it
___________________________
___________________________
___________________________
___________________________
___________________________
4. A taiga is an ecosystem that
is cold in the winter, cool in
the summer, has little rainfall,
and supports evergreen trees,
moose, and weasels. Which other
ecosystem does it most resemble?
__________________________
5. Complete the diagram below
to compare the populations in
the desert and the rain forest
ecosystems.
COMPARING ECOSYSTEMS
Reason for comparing:
Know more about the populations
What is being compared?
____________ vs ___________
How same?
___________
___________
___________
___________
VS.
How different?
___________
___________
___________
___________
Conclusion
____________________no
Answers
A taiga is an ecosystem that is cold in the winter, cool in the summer, has little rainfall, and supports evergreen trees, moose, and weasels, this ecosystem most resembles the boreal forest ecosystem.
The ecosystema. Frogs, lily pads, and fish are parts of a pond community.
True. Sentence 3.
b. An ecosystem includes only living things.
False. Sentence 4.
c. All the barn owls in a state park make up a population of owls.
True. Sentence 2.
d. Squirrels and mice are two different populations of animals.
True. Sentence 6.
e. A desert community is made up of cactus, sand, and camels.
False. Sentence 5.
f. A desert ecosystem can include cactus, sand, and camels.
True. Sentence 8.
2. The most likely meaning of interact in sentence 8 is option a. affect each other.
Sentence 9 gives the best evidence for this answer.
3. An example of an ecosystem is the Amazon Rainforest.
5 populations of organisms you would expect to find in it are:
JaguarsToucansSlothsMacawsTapirs4. A taiga is an ecosystem that is cold in the winter, cool in the summer, has little rainfall, and supports evergreen trees, moose, and weasels.
The taiga ecosystem most resembles the boreal forest ecosystem.
COMPARING ECOSYSTEMS
What is being compared is:
Desert vs Rainforest
Their similarities are:
Both have diverse plant and animal species.Both are ecosystems.Their differences are:
Desert has sparse vegetation, while rainforest has dense vegetation.Desert has extreme temperature variations, while rainforest has a relatively stable climate.Desert has limited water availability, while rainforest has high rainfall.In conclusion, the desert and rainforest ecosystems differ significantly in terms of vegetation, climate, and water availability.
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1.
a. True. Sentence 1.
b. False. Sentence 2.
c. True. Sentence 3.
d. True. Sentence 4.
e. False. Sentence 5.
f. True. Sentence 6.
2. The most likely meaning of interact as it is used in sentence 8 is "affect each other." Sentence 7 provides the best evidence for this answer, stating that "the living and nonliving things in an ecosystem depend on each other."
3. Rainforest is an ecosystem. Five populations of organisms that can be found in a rainforest include:
TreesBirdsInsectsReptilesAmphibians4. A taiga ecosystem most resembles a tundra ecosystem.
5. The following diagram compares the populations in the desert and the rain forest ecosystems:
COMPARING ECOSYSTEMS
Reason for comparing: Know more about the populations
What is being compared?We are comparing Desert vs. Rain forest
How same?
Firstly, the dryness typical of desert conditions characterize these environments alongside sparse rainfall which contrast significantly with the constant wetness experienced in the tropical setting of the Rainforest regime . This also reflects on temperatures as while desert areas experience scorching heat during daytime periods, they also have incredibly chilly nights unlike areas inhabited by Rainforests which tend to maintain moderate- warm daytime climate tempered by cool nighttime weather. They also differ strikingly when it comes to soil texture ;desert soils lean toward sandiness whereas those found within tropical regions such as Rainforests tend to possess nutrient-rich quality.Habitat wise, Rainforests typically host a diverse range of tree species while deserts have fewer to no trees.Learn about ecosystem here https://brainly.com/question/30187156
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MARKING BRAINLIEST!!!
image is attached
Answers
Answer:
2, s
Explanation:
The there will be two orbitals in the s subshell because the first orbital can only contain two electrons and there will be need of a second one
1. You may be using medium for shoot regeneration from leaf explants of a plant in Expt-5. The plant media may contain the plant growth regulators (hoones) BA and NAA. The molecular weight of BK is 72 A : and NAA is 186. The media is pH to 5.8. (a) Before making the plant media, you found the pH to be 3.6. What would you add quiekly to get it to a pH of 5.8 (give a specific name of the solution)? Why? (1 pt) (b) How much BA will be weighed fot a 1M solution? (Y po) (c) Convert your answer from (b) to mg/ml. (Y/ pt) (d) Convert your answer from (c) to mg 1 . (1 pt) (e) How much BA will be weighed for a 5mM solution? (1/4pt) (f) Convert your answer from (c) to mg/ml. ( /4pt ) (g) Convert your answer from (f) to mg/L. (H/ pt) (h) Your stock solution of BA is 5mM and your working solution is 0.2mg/.. What volume of the stoc be added to 250ml of medium? [Hint: fook at the previous answers Keep to 4 decimal pts.) (3 pts Convert your answer from (h) to μI, and which pipettor will you use to aliquot the B. A? (1 pt)
Answers
(a) To get the pH of the media to 5.8, you would add NaOH solution. NaOH is used as a basic solution, and when it is added to a solution, it will increase the pH of the solution.
(b) The molecular weight of BA is 225.3. To prepare a 1M solution, you would have to weigh out 225.3 grams of BA.(c) To convert a 1M solution of BA to mg/mL, you can use the following equation: 1 mole = molecular weight in grams; 1000 millimoles = 1 mole. So, 1 M = 1000 mg/mL. Therefore, a 1M solution of BA is equivalent to 1000 mg/mL .(d) To convert a concentration of 1000 mg/mL .
Therefore, to calculate the weight required for a 5 mM solution, use the following formula :Mass of BA = molarity × volume × molecular weight= 5 × 0.001 × 225.3= 1.1265 grams(f) To convert a concentration of 5 mM to mg/mL, we use the following formula: Concentration (mg/mL) = (Concentration (mM) × Molecular weight) / 1000= (5 × 225.3) / 1000= 1.1265 mg/mL(g)
To convert a concentration of 1.1265 mg/mL to mg/L, we multiply by 1000, so 1.1265 mg/mL = 1126.5 mg/L.(h) Given that the stock solution of BA is 5 mM and the working solution is 0.2 mg/mL.
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Which of the following terms refers to the area immediately around the eye
Answers
Answer:
the eye socket
Explanation:
the area around the eye is called the eye socket or the eye orbit.
whose law explains why a gas will move from one area to another area
Answers
The law that explains why a gas will move from one area to another area is Graham’s law. Graham's law of effusion is also known as Graham's law of diffusion, Graham's law of diffusion and effusion, and Graham's law of gaseous diffusion.
What is Graham's Law?Graham's law refers to the diffusion or effusion of gases. The rate of diffusion of a gas is inversely proportional to the square root of its molar mass. This law is known as the Graham's Law of Diffusion. This law was first formulated by Thomas Graham, a Scottish chemist, in 1831.
Graham's Law can be mathematically expressed as:
v1/v2 = √M2/M1
where:
v1/v2 is the ratio of the diffusion rates of two gases
M1 is the molar mass of gas 1
M2 is the molar mass of gas 2
The above equation can be used to compare the rates of diffusion of two gases. The lighter the gas, the faster it will diffuse, according to the equation. The gas with the smallest molar mass diffuses the fastest.
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Certain birds, such as the flaming or the kori bustard bird, are able to fly because of a certain internal adaptation to their bones. These criss-cross structures allow the bird to be lightweight but still retain bone strength.
Which adaptation makes it easier for birds to fly?
A. gills
B. struts
C. cartilage
D. bone marrow
Answers
because the bodies of birds are adapted for flying. Many of a bird's bones are less dense than human bones, which makes birds' bodies lightweight. Flying birds have large chest muscles that move the wings.
Theoretical yield of NaHCO3 = Na + H2O + CO + CO2
Answers
Answer:
C - 2 e- → C
Explanation:
2 NaHCO3 → 2 Na + H2O + -1 CO + 3 CO2
2 NaI + 2 e- → 2 Na0
C - 2e - C
100 cm³ of a gas at 27°C is cooled to 20°C at constant pressure .Calculate the volume of gas at 20°C.
Answers
According to Charle's law, the volume of the given mass of a gas is directly proportional to its absolute temperature provided that the pressure is constant. Mathemically;
\(\begin{gathered} V\alpha T \\ V=kT \\ k=\frac{V}{T} \\ k=\frac{V_1}{T_1}=\frac{V_2}{T_2} \end{gathered}\)where;
V1 and V2 are the initial and final volume of the gas
T1 and T2 are the initial and final temperatures of the gas (in Kelvin)
Given the following parameters:
\(\begin{gathered} V_1=100\operatorname{cm}^3 \\ T_1=27^0C=27+273=300K \\ T_2=20^0C=20+273=293K \\ V_2=\text{?} \end{gathered}\)Substitute the given parameters into the formula;
\(\begin{gathered} V_2=\frac{V_1T_2}{T_1}^{} \\ V_2=\frac{100\times293}{300} \\ V_2=\frac{29300}{300} \\ V_2=\frac{293}{3} \\ V_2=97.67\operatorname{cm}^3 \end{gathered}\)Therefore the volume of the gas at 20°C is approximately 97.67cm³
In an electrochemical cell, equilibrium is the point at which:
A. None of these
B. both electrodes have an equal number of electrons.
C. ion concentrations are no longer changing and the voltage is 0.
D. Equilibrium cannot be reached in a voltaic cell because electrons only flow in one direction.
Answers
Answer:
C. ion concentrations are no longer changing and the voltage is 0.
Explanation:
Electrochemical cells are a device that generates current from redox reactions. In the cell, the equilibrium is reached when the voltage drops to 0. Thus, option C is correct.
What is an electrochemical cell?An electrochemical cell is a voltaic device that uses chemical energy to generate electrical energy and vice versa. It is of two types electrolytic and galvanic cells depending on the energy it produces.
The electrochemical cell comprises two electrodes namely an anode and cathode, a salt bridge or the porous barrier, and an external connection.
The connection shows the voltage that indicates the equilibrium. When the current flow stops and the voltage reaches zero, the electrochemical cell is said to be in equilibrium.
Therefore, no change in the ionic concentrations and zero voltage indicates equilibrium.
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Calculate the amount of water needed if 25 g of copper at 250°C is added to 25°C water and the final temperature of the system is 35°C.
Answers
Answer:
sorry I don't know how can do this for me
49. Carry out the indicated temperature conversions.
40 °C to Fahrenheit degrees
b. -40 °F to Celsius degrees
c. 232 K to Celsius degrees
d. 232 K to Fahrenheit degrees
Answers
Answer:
sorry but dorks dont learn maths
Explanation:
just kidding no offense but i think umm 1st one will stay same
i searched google
Answer THIS QUESTION
Answers
Answer:it is 580
Explanation:
I had the answer on my quiz
I AM GIVING BRAINLIEST! PLEASEEEEEE HELPPPPPP I NEED HELPPP
How many atoms of nitrogen in 2.0 mol of dinitrogen monoxide, N2O?
Answers
Answer:
I think that the answer is N20:2(14.01)+1(16.06)=44.02g/mol(c) fluorine Di nitrogen monoxide contains how many mom 6.022 x
1023 mol N20
What is the molality of a solution that contains 31.0 g HCI in 5.00 kg water?
Answers
Molar mass (H) + Molar mass (Cl) = 1.007 g/mol + 35.453 g/mol = 36.460 g/mol
Now, calculate the number of moles of HCl:
moles = mass / molar mass
moles = 31.0 g / 36.460 g/mol ≈ 0.850 mol
Next, calculate the mass of water (solvent) in kilograms:
mass of water = 5.00 kg
molality = moles of solute / mass of solvent (in kg)
molality = 0.850 mol / 5.00 kg ≈ 0.170 m
a study was conducted to show how a carbon tax affected gas emissions
Answers
The study mentioned was likely conducted to assess the impact of a carbon tax on greenhouse gas emissions.
A carbon tax is a policy tool that puts a price on carbon emissions, with the aim of reducing the use of fossil fuels and encouraging the transition to cleaner forms of energy.
The study may have examined how the tax affected the price of gasoline, the amount of fuel consumed, and the resulting emissions of carbon dioxide and other pollutants.
Depending on the specific findings of the study, policymakers may use the results to inform decisions about implementing or adjusting a carbon tax in order to achieve specific emissions reduction targets.
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WILL GIVE LOTS OF POOIINNTTSSS PLEEAASSEE IMMM CRYINNNNNN
Explain specific heat in your OWN words. (2pts) Explain the equation. (1pt) Give an example of your understanding of the concept that we encounter on a daily basis. (3 pts.)
Answers
Answer: The specific heat is the amount of heat per unit mass that is essential for raising the temperature of heat by one degree Celsius. Equation is the symbolic reaction of a chemical reaction in the form of symbols and formulas, where the reactant is written on the left side and the product is written on the right side.
We encounter a lot of things in our daily life that we love and also hate. What I have faced a lot is my nail tags that happens to me a lot and hurts too. And I love dipping biscuits in tea and that never happens at once because a single biscuit is too big for the cup. Hence, I have to break it and dip. Ugh
the density of 0.763 m acetic acid, c2h4o2, solution is 1.004 g/ml. what is the molal concentration of acetic acid?
Answers
The molality or the molal concentration of acetic acid is 0.796 molal.
What is the molality of the solution?The molarity of the solution is 0.763 mol/L
The density of the solution is 1.004 g/mL. Hence, the mass of 1 liter solution is 1004 g
The mass of the solute in 1 Liter 0.763 M acetic acid = 0.763 mol/L * 60 g/mol
The mass of the solute in 0.763 M acetic acid = 45.78 g
Mass of water = 1004 - 45.78 g
Mass of water = 958.22 g or 0.95822 Kg
Molality of solution = 0.763/0.95822
Molality of solution = 0.796 molal
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What makes an atom stable?
a. Having the nucleus in the center
b. Being very small
c. Being neutral
d. Having the right number of protons and neutrons
Answers
Explanation:
An atom is stable if the forces among the particles that makeup the nucleus are balanced. An atom is unstable (radioactive) if these forces are unbalanced; if the nucleus has an excess of internal energy. Instability of an atom's nucleus may result from an excess of either neutrons or protons.
How many moles are in 2.8 g of Mg?
Answers
Answer:
2.8 mg ≈ 0.12 mol
What is sodium chloride used?
Answers
what is the digiMelt Start Temp and the digiMelt Stop Temp for Formic Acid Acetic Acid Propionic Acid
Answers
Explanation:
Melting is defined as the physical process where a solid state of a substance converts into its liquid state. No change of chemical composition takes place, just the physical state of water is changing.
\(\text{Solid}\rightleftharpoons \text{Liquid}\)
There are given carboxylic acids. The melting point of these acids increases to its second group member which is ethanoic acid due to prevalent hydrogen bonding. To break this bonding, a high amount of heat needs to be applied.
But as we move forward, the melting point decreases sharply as an increase in the number of carbon atoms decreases the hydrogen bonding.
Melting point of Formic Acid = \(8.3^oC\)
Melting point of Acetic Acid = \(16.6^oC\)
Melting point of Propionic Acid = \(-21^oC\)
1. . What is the percent composition of Carbon, in, C7H16?
a. 12%
b. 19%
c.68%
d. 84%
Answers
d. 84% is the percent composition of Carbon, in, C₇H₁₆
What does "percent composition" mean?% composition is quite straightforward. You can determine by mass how much of each element is contained in a compound using its percent composition. A chemical compound is created when two or more components are combined.
The hydrocarbon includes 80% carbon, which translates to 80% of the molar mass being made up of carbon. Consequently, the hydrocarbon has four carbon atoms.
The percent composition is calculated by multiplying the total mass or quantity of an element present in a molecule or compound by the molecular mass of the compound.
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Which of the following extremophiles has evolved in conditions
of extreme drought or extreme salt, respectively?
Group of answer choices
halophile; xerophile
xerophile; thermophile
xerophile; psychrop
Answers
The extremophile that has evolved in conditions of extreme drought is the xerophile, while the extremophile that has evolved in conditions of extreme salt is the halophile.
Extremophiles are organisms that thrive in extreme environments, where most other life forms cannot survive. They have developed unique adaptations to withstand and thrive in these extreme conditions. Two types of extremophiles specifically adapted to different extreme environments are xerophiles and halophiles.
Xerophiles are extremophiles that have evolved to survive in conditions of extreme drought. They are adapted to environments with very low water availability or high water stress. These organisms have developed mechanisms to prevent water loss, such as efficient water retention and protection of cellular structures. Xerophiles can be found in desert environments and other arid regions.
On the other hand, halophiles are extremophiles that have evolved to live in conditions of extreme salt concentration. They are adapted to environments with high salinity, such as salt flats, salt lakes, and hypersaline environments. Halophiles have specialized adaptations to cope with the osmotic stress caused by high salt concentrations. They have enzymes and transport proteins that function in high-salt environments and can maintain osmotic balance within their cells.
In summary, xerophiles have evolved in conditions of extreme drought, while halophiles have evolved in conditions of extreme salt. These extremophiles showcase remarkable adaptations to thrive in their respective harsh environments.
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help me please give two example in which physical change take place please help me
Answers
Answer:
Boiling, melting
Explanation:
Physical changes affect the form of a chemical substance.
Why is sodium an active metal
Answers
Answer:
Sodium is very reactive in nature. When exposed in air, it automatically forms Na2O. When it is put in water it reacts vigorously and starts burning on water. Due to the above reasons Sodium is called an active metal
Explanation: hope this helps pls mark as brainliest ty
Copper has the highest conductivity of any metal used in electronics. True False Question 54 (1 point) Express the number .000000as9? using the powers of ten. A) \( 3597 \times 10^{-9} \) B) \( 35.97
Answers
Copper has the highest conductivity of any metal used in electronics. The statement is false.
Silver is the element that conducts electricity the best, followed by copper and gold.
The earth's most conductive metal is by far silver. Silver only has one valence electron, which explains this. This one electron can also go about freely and encounter little opposition. As a result, some of the metals with this particular property are silver and copper.
Silver is the metal with the highest thermal and electrical conductivity because of its distinctive crystal structure and lone valence electron.
Since copper is the non-precious metal with the highest conductivity, it has a higher electrical current carrying capacity than other non-precious metals. The strength of the metal rises when tin, magnesium, chromium, iron, or zirconium are added to copper to create alloys, but its conductivity decreases.
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PLEASE HELP!! 20 Points for Brainiest!
Which element is a metal from the lanthanide series?
rutherfordium (Rf)
americium (Am)
mendelevium (Md)
dysprosium (Dy)
Answers
Answer:
dysprosium (Dy)
Is a metal from the lanthanide series.
Explanation:
QUICK PLEASE HELP ME 30 POINTS RIGHT ANSERS ONLY :)
what term describe this particle model nh3, oh-, nh4+
Answers
Answer: Its a weak base
Explanation: Clicked on that and got the answer right. :)
The image that has been shown has helped us to know that the particles are weak bases. Option A
What is a weak base?
A chemical species or substance that has a restricted capacity to receive or interact with protons (H+ ions) in a solution is said to be a weak base. Weak bases only partially ionize or interact with water, in contrast to strong bases, which totally breakdown into ions in water and quickly take protons.
Compared to strong bases, weak bases have a lesser affinity for protons and fewer alkaline characteristics. They are frequently identified by the considerably lower concentration of hydroxide ions (OH-) in a solution and their imperfect dissociation equilibrium.
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fluoride content in acidulated phosphate fluoride is approximately _________ percent.
Answers
The fluoride content in acidulated phosphate fluoride is approximately 1.23 percent.
Acidulated phosphate fluoride (APF) is a commonly used dental product for the prevention of tooth decay. It contains a specific concentration of fluoride, which is an essential component for its effectiveness.
The fluoride content in APF is approximately 1.23 percent. This means that for every 100 parts of APF, 1.23 parts are fluoride. This concentration is carefully formulated to provide optimal dental benefits while ensuring safety and effectiveness.
The fluoride in APF acts by remineralizing tooth enamel, making it more resistant to acid attacks from bacteria and acids in the mouth. It also inhibits the growth of bacteria that contribute to tooth decay.
It is important to note that the fluoride content in dental products may vary slightly depending on the specific brand or formulation. Therefore, it is always recommended to follow the instructions provided by the manufacturer and consult with dental professionals for proper use and dosage.
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Which statement correctly compares the weight and the mass of an object?
Answers
Answer:
Its weight changes based on location, but its mass stays the same.
Explanation:
See attached worksheet.
