Answer:
it is gonna beeee D.
Explanation:
so guys, on tt i posted a video of me dancing and doing tricks, and someone said its from yt. like no? I gave proof two times and I cant rn bc im in school ?? what should i do dont rpeort pls i need help
Just ignore them you dont need to send salty ppl proof of anything
The role of homeostasis in living things is:
A. to build comfortable houses.
B. a technique of cooling/freezing bodies while traveling in space.
C. maintaining a balance in the body's internal conditions.
D. a home security device like Ring Alarms.
Answer:
Homeostasis helps animals maintain stable internal and external environments with the best conditions for it to operate. It is a dynamic process that requires constant monitoring of all systems in the body to detect changes, and mechanisms that react to those changes and restore stability.
Explanation:
i would say C. i hope im right
sorry if you get it wrong
24ethanjones88 unfvbfuhgtbnuthigthtijbtnibttbhiitti
Answer:
mmm Nice B)
Explanation:
Which of the following indicates that a chemical change has happened during cooking?
The food darkens.
Bubbles form in boiling water.
Energy is transferred from the stove to a pan.
Butter melts.
Answer:
The food darkens.
Explanation:
I really need help. Can someone try to order it in the way it happens by putting it in order by letter.
Explanation:
Photosynthesis is the process by which green plants take in carbon dioxide and water, in the presence of chlorophyll by using sunlight to make their own food, is called as photosynthesis.
Oxygen is released as a by product.
The formula for photosynthetic reaction is :-
[tex]\sf 12H_2O + 6CO_2 \underset{chlorophyll}{\xrightarrow{Sunlight}} C_6H_{12}O_6 + 6H_2O + 6O_2 \uparrow[/tex]
I have a solution with a molarity of 5.5M and a volume of
20L, how many moles of solute are present?
Answer:
110moles
Explanation:
Molarity, which refers to the molar concentration, can be calculated using the following formula:
Molarity (M) = number of moles (n) ÷ volume (V)
n = molarity × volume
According to the provided information in this question, a solution with a molarity of 5.5M and a volume of 20L is involved.
n = 5.5M × 20L
n = 110moles
110moles of solute are present.
Cecilia is combing her hair. She notices that her hair and the comb have developed an electric charge. What will happen when she holds the comb near a small, uncharged object?
Answer:
The object will become statically charged
Explanation:
Please help me with number 4 and 5 please
what mass of hcl is consumed by the reaction of 5.0 moles of mg??
How many moles are there in 122 grams of NO2?
Answer:
1.47 × 10^(23) molecules
Explanation:
Calculate the number of grams Fe2O3 produced from 8.93 g 02.
4 Fe +302 → 2 Fe2O3
Hey there!:
Molar mass :
Fe₂O₃ = 159.69 g/mol
O₂ = 31.99 g/mol
By reaction stochiometry :
4 Fe + 3 O₂ = 2 Fe₂O₃
3 * (31.99 g O₂ ) ------------------ 2 * ( 159.69 ) g Fe₂O₃
8.93 g O₂ --------------------------- ( mass O₂)
mass O₂ = ( 8.93 * 2 * 159.69 ) / ( 3 * 31.99 )
mass O₂ = 2852.0634 / 95.97
mass O₂ = 29.71 g Of Fe₂O₃
Hope this helps!
When an atom of calcium (Ca) forms an ion by losing two electrons, what is the ion’s type and charge?
cation, 2+
anion, 2−
cation, 2−
anion, 2+
Answer: it would be cation, 2+
Explanation: electrons are negatively charged by 1. So if you get rid of 2 electrons it would be positive and cation is used to represent positive ions.
The electrical charge of the calcium ion is +2.
Clear sele 4. Which of the following statements is (are) true about antibiotic - resistant bacteria. (Click all that apply) A. Antibiotic resistance can sometimes be shared among bacteria. B. Mutation can cause antibiotic resistance, C. Bacteria that become resistant are an example of evolution D. Antibiotics killing bacteria while allowing mutated bacteria to live is an example natural selection. 5. Identitfy ONE difference between kingdoms Archaea and Bacteria.
Answer:
A. Antibiotic resistance can sometimes be shared among bacteria.
B. Mutation can cause antibiotic resistance.
D. Antibiotics killing bacteria while allowing mutated bacteria to live is an example natural selection.
Explanation:
Identifying: Archaea have cell walls that lack peptidoglycan and have membranes that enclose lipids with hydrocarbons rather than fatty acids (not a bilayer). ... Bacteria: cell membrane contains ester bonds; cell wall made of peptidoglycan; have only one RNA polymerase; react to antibiotics in a different way than archea do.
Hope this helps, I reported some answer that was absurd, not applicable, incomplete and confusing
Mutation can cause antibiotic resistance, Bacteria that become resistant are an example of evolution. Antibiotics killing bacteria while allowing mutated bacteria to live is an example natural selection The correct options are B, D, and C.
What are archaebacteria and bacteria?Archaea, like bacteria, lack interior membranes but have a cell wall and swim with flagella.
Archaea differ from bacteria in that their cell wall lacks peptidoglycan and their cell membrane contains ether linked lipids rather than ester linked lipids.
The dispersion of antibiotic resistance in pathogenic bacteria is a simple and elegant example of natural selection at work.
Bacteria can develop antibiotic resistance through mutations that alter antibiotic cellular targets or by acquiring dedicated resistance genes from other bacteria.
Antibiotic resistance can be caused by mutation; bacteria that become resistant are an example of evolution. Natural selection is demonstrated by antibiotics killing bacteria while allowing mutated bacteria to live.
Thus, B, D, and C are correct options.
For more details regarding archaebacteria, visit:
https://brainly.com/question/2598723
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Which type of reaction is NaCI + AgNO3 -----> NaNO3 + AgCI
A Synthesis
B Decomposition
C Oxidation
D Replacement
Answer:
D. Replacement
Explanation:
The positive ions on each compound are being replaced by the other, so therefore it is Replacement. It is also double replacement.
please answer this aaaaaaaaaaa
Answer:
Frog, shark, snake, Lion, tortoise, salamander, ostrich
Answer:
The person above me is correct it is frog, shark, snake, Lion, tortoise, salamander, ostrich
Explanation:
I NEED HELPPPPPPPPPPPPPPPPPPPPLSSSSSSSS
Pls pls pls
I need the discussion Too!!!!
Explanation:
2 hydrogen into helium
1.D
3.A
Brainliest !!!!!!!!!!!!!!!!!!!! Soil erosion is the process by which soil is formed
True or false
A stone has a mass of 112.5g. When the stone is totally immersed in a measuring cylinder containing water the displaced water moves from 50cm3 to 95cm^3. Find the density of the stone.
Answer:
Mass of the stone=112.5g
Volume of stone=95cm3-50cm3=45cm3
Explanation:
8 If the initial pressure of a 2.00 L gas sample is 2.50 atm, what will the pressure be if the volume is changed to 3.00 L at constant temperature?
Answer:
1.67 atm
Explanation:
Boyle's Law relates pressure and volume with the following equation:
[tex]P_{1} V_{1} = P_{2} V_{2}[/tex]
We are given 3 of the four variables in the equation, and are asked to find the final volume. Therefore:
P1 = 2.50 atm
V1 = 2.00 L
P2 = ???
V2 = 3.00 L
We substitute our variables into the equation and solve for our unknown:
(2.50atm)(2.00L) = (P2)(3.00L)
(2.50atm)(2.00L)/(3.00L) = (P2)
5/3 = 1.67atm
This supports Boyle's Law, which tells us that pressure and volume of a gas are inversely proportional. The volume increased by 1/3, so the pressure decreased by 1/3.
Compare the life cycles of a flowering and a conifer non-flowering plant.
Answer:
The main difference between flowering and nonflowering plants is their method of reproduction. Flowering plants rely on pollination for reproduction, where as nonflowering plants rely on dispersion to continue their life cycle.
What is the molarity of a solution when 285 grams of HCl are dissolved in 0.350L of solution?
Answer: 22.33 M
Explanation:
molarity = moles of solute/liters of solution or [tex]M=\frac{mol}{L}[/tex]
first we have to find our moles of solute (mol), which you can find by dividing the mass of solute by molar mass of solute
mass of solute: 285 g
molar mass of solute: 36.46 g/mol
let's plug it in:
[tex]\frac{285g}{36.46 g/mol} = 7.817 mol[/tex]
next, we plug it into our original equation:
[tex]\frac{7.817 mol}{0.350 L} = 22.33 M[/tex]
A 40.0 gram sample of water releases 503 Joules of energy when cooled from 25.0˚C to 22.0˚C. What is the value of the specific heat of water? Round to the nearest hundredth.
Answer:
Explanation:
i dont know either but im working on it now, i think that you are supposed to use this equation Q = m * ΔT * Cp once i get the answer ill tell you
Why do hot packs and cold packs eventually return to room temperature?
Answer:
Temperature will revert to room temperature after the substance reacts fully. Heat energy flows between the chemical bonds of the added substance and water to the surroundings (elsewhere in the water, the beaker, a student's hand that touches the beaker).
Explanation:
Hot packs and cold packs eventually return to room temperature because of thermal equilibrium
Temperature is the degree of hotness or coldness of a body. We have to note that bodies often tend to attain thermal equilibrium with the surroundings. Hence heat flows from or to the body as required.
Hence, the need to attain thermal equilibrium with the environment is the reason why hot packs and cold packs eventually return to room temperature.
Learn more about thermal equilibrium: https://brainly.com/question/1301963
Another term for air movement caused by differences in air pressure is 
Help please
Answer:
wind
The Movement of Air. Movement of air caused by temperature or pressure differences is wind. Where there are differences of pressure between two places, a pressure gradient exists, across which air moves: from the high pressure region to the low pressure region.
Explanation:
Hope it helps! Correct me if I am wrong :>
Can you please mark me as brainlest?
Its ok if not :>
Choose ALL that apply for NEAP tides Moon and Sun are at right angles to the Earth gravity of the Sun and Moon work against each other Moon, Sun, and Earth are in alignment smaller than normal range of highs and low tides
Answer:
i think it is..... smaller than normal range of highs and low tides
Moon and Sun are at right angles to the Earth
Explanation:
Moon and Sun are at right angles to the Earth and gravity of the Sun and Moon work against is the right statement about NEAP tides.
What are tides?Tides are the cyclic deformation of water body occur due to external gravitational force.
NEAP tides are also known as small tides as their heights are not very much and this is occur due to opposite attraction of water towards the gravity of the sun and moon. As sun and moon are present in the right angle direction with respect to the earth.
Hence, option (1) & (2) is correct, i.e. gravity of sun and moon is opposite and they are present at the right angle to the earth.
To know more about tides, visit the below link:
https://brainly.com/question/11545040
plz help this was due yesterday butttttt i didn’t want to do it...
Answer:
It is the same it has cycles related to it (that's what I could think of)
predict how the surface of a sand dune would change if a river began flowing through the area over the course of 10,000 years. Write your explanation in the space
below.
Answer:
the sand dune would become flattened and eventually turn into sedementary rock
El trabajo realizado cuando se comprime un gas en un cilindro, como el que se muestra en la siguiente figura, es de 462 J. Durante este proceso hay transferencia de calor de 128 J del gas hacia los alrededores. Calcule el cambio de energía para este proceso.
Answer:
334 J
Explanation:
Cuando se comprime un gas, el trabajo se realiza en el gas, por lo que el trabajo realizado es positivo.
El sistema pierde calor, por lo que el calor es negativo.
De la primera ley de la termodinámica;
E = w + q
Dónde;
w = trabajo realizado
q = calor
E = 462 J - 128 J
E = 334 J
HELP QUICKLY PLEASE!!! Thermal energy is transferred from a hot object to a colder object by means of ___
a. heat
b. energy
c. work
d. temperature
e. none of the above
Answer:
Heat is the transfer of energy
Explanation:
Heat refers to the energy transferred from a hotter object to a cooler one. Heat is transferred in three ways: radiation, conduction, and convection. Radiation is the direct transfer of energy. The direct transfer of heat from one substance to another substance that it is touching is called conduction.
Which organelle allows plants to make their own food?
A: Chloroplast
B: Vacuole
C: Cell wall
D:
Cell membrane
Help me ASAP
Answer:
chloroplast is the correct answer