The Dart Frog is a brightly colored frog. These bright colors could mean that this frog is poisonous, warning predators to stay away. Plants in the rainforest are normally crowded and have very little space. The big leaves of a Hosta Plant allow the plant to receive as much sunlight as possible when the sun is out.

What type of adaptations are these? Compare and contrast the adaptations of the Dart Frog and the Hosta Plant. Your answer should be 3–4 sentences long.

PLEASE HELP!! OPTIONS: LIFE CYCLE>PHYSICAL>BEHAVIORAL ADAPTION(ILL GIVE 20 POINTS!!)

Answer:

c) It describes the affinity an atom has for an electron.

Explanation:

C quite literally describes what electronegativity is, you can rule out most others by looking at periodic trends as attached below.

Molality (W) is the ratio of the amount of substance of a solute (in moles – n) to the mass in kilograms of the solvent (m1). It can be calculated by the following formula:

W = n/m1

Step 1 - Let's discover how many moles of sodium fluoride is needed first.

Let's transform 600 g of water to kilograms:

1 g = 0.001 kg

600 g = 0.6 kg

W = 0.600m

m1 = 0.6

0.600 = n/0.6

n = 0.36 moles of sodium floride

Step 2 - Let's transform 0.36 moles of NaF into grams. Let's use the following formula: mass = moles x molar mass

molar mass of NaF = 42 g/mol

mass = 0.36 x 42

mass = 15.12 g

Answer: 15.12 g of NaF

Adding buffering compounds to neutralize acids is used to address acid mine drainage.

Therefore, the correct option is C.

Adding lime or other alkaline materials to neutralize the acidity of the soil, as well as adding uncontaminated topsoil, planting vegetation, and modifying slopes to stabilize the soil and reduce surface water infiltration into the underlying contaminated material, are some of the common methods for cleaning up contaminated land. The most commonly used technique for treating AMD contamination is the use of alkaline reagents like lime, limestone, sodium carbonate, or sodium hydroxide. The purpose of this process is to neutralize acidic water and prevent the precipitation of heavy metals.

Acid mine drainage (AMD) is a global problem that has negative effects on the ecosystem. Because of its high acidity and high concentration of heavy metals and metalloids, AMD is harmful to both plants and animals as well as to people. Traditional AMD therapies have been in use for a very long time.

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Among the given options, the option A which is A person's weight on the moon is the less than on the Earth, due to the force of gravity, is true.

The weight of a person is usually one-sixth less than their Earth's weight. Only the value of weight fluctuates from Earth to the moon, whereas the mass stays the same on both earth and moon.

This happens due to the gravitational force of the moon. Moon is smaller than the Earth, therefore it has low gravitational forces. Moon's gravitational force leads to the difference in the weights on the Earth and the moon.

The moon of Earth has comparitively less amount of mass than Earth. It is not only small in size than but it also is not as dense as earth. It is only 60 % dense which leads to lower gravitational pull, hence leading to difference in the weight.

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Answer:

20

Explanation:

Pressure = Force / Area of Piston

0.5x0.5=0.25

5/0.25=20

----------------------------------------------------

If that answer doesn't work then try not squaring the 0.5

5/0.5=10

According to the concept of molar mass, mass of water of hydration lost is 90 g/mole and mass of dehydrated salt is 159.68 g/mole as the mass of copper sulfate pentahydrate is 249.68 g/mole.

Molar mass of a compound or a molecule is defined as the mass of the elements which are present in it.The molar mass is considered to be a bulk quantity not a molecular quantity. It is often an average of the of the masses at many instances.

The molecular mass and formula mass are used as synonym for the molar mass.It does not depend on the amount of substance which is present in the sample.It has units of gram/mole.

Molar masses of an element are given as relative atomic masses while that of compounds is the sum of relative atomic masses which are present in the compound.

Copper sulfate along with water of hydration has mass of 249.68 g/mole.On heating , the mass of water of hydration lost =90 g/mole

∴mass of dehydrated salt=249.68-90=159.68 g/mole.

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The gas constant is equal to R=8.314 J/mol K, while the atomic mass of helium is equal to M=4.0 g/mol. M = 4.0 g / m o l . As a result, the helium atom's rms speed is 1304.7 m/s. So, 515 m/sec is the root-mean-square speed.

The value of the square root of the sum of the squares of the stacking velocity values divided by the quantity of values is the root-mean square (RMS) velocity. The RMS velocity is the speed of a wave traveling along a certain ray path across subsurface strata with various interval velocities.

The expression v=sqrt(3RTM) and v=sqrt(3KTm), where R is the universal gas constant, T is the absolute (Kelvin) temperature, m is the molar mass, K is the Boltzmann's constant, and M is the molecular mass, gives the root mean square (R.M.S.) speed V of the molecules of an ideal gas.

Since the particles in a typical gas sample are flowing in all directions, the average velocity for that sample is zero, which is why we use the rms velocity instead of the average. This is an important formula since the particle velocity controls both the diffusion and effusion rates.

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C) It will continue on its own once begun is true for spontaneous processes.

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The element that has in its family non-metals, metalloids, and metals, which is commonly used in the canning business and sometimes give soups a distinct taste and that is also been known to "cry" if you bend it too hard is tin.

What is tin?

Tin is a chemical element found in the periodic table with atomic number 50 and which has the symbol Sn.

The characteristics of tin include:

Because of its high resistance to corrosion and soft nature, tin has been used for a wide variety of purposes which include:

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The daughter nuclide that is formed from this reaction is Ra.

We define radioactivity as the spontaneous disintegration of the atom of a substance. We know that in the process of radioactivity there is the formation of daughter nucleus which are somewhat different from the given parent nucleus.

Now, we are told that, Uranium-238 is an unstable nuclide that emits an alpha particle, three neutrons, and gamma particles. Since we are told that there is an alpha decay then it means that the daughter nucleus is less than the atomic number of the parent by two units.

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At 40°C 12.25 g potassium sulfate would be precipitated

Saturated solutions are those in which the maximum amount of solute has been dissolved. The solute precipitates out of the solution as more solute is added.

Solubility of potassium sulfate is shown as:

Solubility of potassium sulfate at 40 °C will be 15 g/100 g

It can be understand that at 40 °C 15 g of potassium sulfate would get completely dissolved in 100 of water.

46.0 g of potassium sulfate to 225 g water

Amount of potassium sulfate will get dissolve in 225 g of water at 40 °C will be:

15 g/100g ×225 g = 33.75 g

Amount of potassium sulfate precipitated by the solution can be determined by as follow:

= 39.0 g-33.75 g = 5.25 g

At 40 °C 5.25 g of potassium sulfate will get precipitate out from the solution which means that solution is saturated.

It is given that, the amount of potassium sulfate which is added :
46 g - 33.75 g = 12.25 g.

Therefore, at 40°C 12.25 g potassium sulfate would be precipitated.

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The concentration of conjugate base in the buffer change after the addition of a small amount of strong base The concentration of conjugate base will increase. HA+BOH ⇒ H2O +AB

Buffer capacity refers to the amount of added acid or base that can be neutralized by a buffer. This is determined by the concentration of the conjugate acid and conjugate base. As these concentrations increase, the buffering capacity increases. A buffer is a solution that can withstand changes in pH due to the addition of acidic or basic components.

Can neutralize small amounts of added acids or bases and keep the pH of the solution relatively stable. When a strong base is added to a buffer the hydroxide ions are consumed by the weak acid, forming water, and consumed by the weak conjugate base of the acid. The number of weak acids decreases and the number of conjugate bases increases.

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All of the elements in the group located in Family VIIIA of the periodic table are highly unreactive.

The elements of Family VIIIA are also known as noble gas elements. Noble gases are low chemically reactive, odorless, colorless, nonflammable, and monotonic gases.

These elements have very little ability to gain or lose electrons to form ions or share electrons with other elements in covalent bonds because they contain a full octet of eight valence electrons in their highest-energy orbitals (ns2np6). That is why they are exceedingly stable and unlikely to form chemical connections.

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The process of anabolism is a metabolic pathway in which one or more molecules are used to synthesize more complex compounds.

Anabolism refers to the chemical metabolic reactions that occur in biological systems which are aimed at generating complex molecules from simpler ones. This process is different from catabolism, which involves the release of energy to be used in the anabolic process.

Therefore, with this data, we can see that anabolism refers to the generation of complex molecules in biological systems by using the energy generated by catabolic reactions in the body.

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The entropy  is -3.65 and -0.049 J per kelvin per mole respectively are the entropy of an insulated tank.

Entropy is a measure of randomness in a system. It is a state function. It can be denoted by heat supplied for a reversible system per temperature.

The final pressure will be the partial pressure of each gas in the mixture.

a) Partial pressure of nitrogen = mole fraction of nitrogen x total pressure = (0.79 mol) × (1 + 1 bar)/(0.79 + 0.29 mol) = 1.46 bar

Partial pressure of oxygen = mole fraction of oxygen x total pressure = (0.29 mol) ×(1 + 1 bar)/(0.79 + 0.29 mol) = 0.54 bar

Therefore,

ΔS of nitrogen= -R ln1.46 = -0. 38R

∆S of oxygen= -R ln 0.54= -0. 61R

ΔSuniv=−(0.79mol/0.79+0.29mol)×0.38 R−(0.29mol/0.79+0.29mol)×0.61

R=−0.27 R−0.16

R=−0.44

R=−3.65JK−1mol−1

(b) Partial pressure of nitrogen = mole fraction of nitrogen x total pressure = (0.79 mol) × (2 + 1 bar)/(0.79 + 0.29 mol) = 2.19 bar

Partial pressure of oxygen = mole fraction of oxygen x total pressure = (0.29 mol) × (2 + 1 bar)/(0.79 + 0.29 mol) = 0.80 bar

ΔS of nitrogen gas=−Rln1.46=−0.09R

ΔSof sulphur oxide =−Rln0.54=0.22R

ΔSuniv=−(0.79mol/0.79+0.29mol)×0.09R+(0.29mol/0.79+0.29mol)×0.22

R=−0.066 R+0.060

R=−0.049JK−1mol−1

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Hydrogenation affects unsaturated fats by adding hydrogen atoms to their unsaturated chains and making them be more saturated.

Unsaturation in organic compounds is an indication of the presence of double or triple bonds in one or more C-C bonds in the structure of the compounds.

Saturated organic compounds do not have double or triple C-C bonds in them.

Unsaturated compounds, therefore, have the tendency to undergo addition reactions due to the presence of the double/triple bond.

Hydrogenation of unsaturated fats is an additional reaction. The hydrogen atoms attach themselves by pairing with the lone electron pairs in the double or triple bonds.

Thus, the addition of hydrogen makes unsaturated compounds to be more saturated.

Saturated compounds, on the other hand, can only undergo substitution reactions instead of addition reactions.

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The best solvent choice for this analysis will be 50% hexanes in ethyl acetate.

Ethyl acetate having a molecular weight of 174.28, is observable in chromatography paper.

In the chemical examination, chromatography could be a research facility strategy for the partition of a blend into its components.

The blend is broken down into a liquid dissolvable (gas or fluid) called the versatile stage, which carries it through a framework (a column, a capillary tube, a plate, or a sheet) on which a fabric called the stationary stage is settled.

Since the distinctive constituents of the blend tend to have diverse affinities for the stationary stage and are held for distinctive lengths of time depending on their intuition with their surface destinations causing them to partition.

The partition is based on the differential dividing between the portable and the stationary stages. Unpretentious contrasts in a compound's parcel coefficient result in differential maintenance on the stationary stage and hence influence the division.

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The four main components of a modern detergent are builders (50% by weight), surfactants (15%), bleach (7%), and enzymes (2%).

A detergent can be described as a surfactant or a mixture of surfactants with cleansing properties in dilute solutions. These substances are similar to soap but are more soluble in hard water due to the polar sulfonate is less likely than the polar carboxylate of soap to bind ions in hard water.

Builders are water softeners and their anions react with cations to form insoluble compounds which precipitate onto fabrics and washing machines and which are hard to remove.

Surfactants provide absorption and emulsification of soil into the water and also by reducing the surface tension of water to improve wetting.  The main function of bleaches is oxidizable organic stains, which are usually of vegetable origin.

Enzymes are needed to degrade stubborn stains composed of proteins, fats, starch, and cellulose.

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Fungal digestive enzymes are most likely to appear within the food source soon thereafter. Mycelium has a porous structure made up of tubular filaments known as hypha.

Every single mycelium fiber is made up of an array of slender cells that are separated by cross walls, known as septum, and are all enclosed within the same cell wall. Tiny holes in the septum allow nutrients, water, and other small molecules, as well as mycelium fiber, to move quickly from cell to cell. Mycorrhizae are symbiotic relationships that fungi and plants form. Fungi colonize the root system of a host plant, increasing water and nutrient absorption, while the plant provides carbohydrates formed by photosynthesis to the fungus.

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Answer:

Explanation:

Fungal haustoria are most likely to appear in the food source shortly after a mycelium invades an untapped source of dead organic matter.

What do fungal haustoria do?

A specialized fungal hypha that breaks through the wall of a plant cell and expands inside of it creates a haustorium.

The haustorium is encircled by an extrahaustorial membrane, a thickened version of the plant cell plasma membrane, rather than being situated inside the cytoplasm of the plant cell.

Are haustoria produced by fungi?

All significant divisions of fungi create haustoria.

There are various types of haustoria.

Generally, the fungus increases the surface area in contact with the host plasma membrane upon penetration and releases enzymes that disintegrate the cell walls, allowing for a greater potential transfer of organic carbon from the host to the fungus.

What kind of structure is a haustoria?

Haustoria are incredibly diverse plant parasite structures.

Haustoria are visible on exposed roots in root parasites.

At the location of contact between the parasite and the host, they manifest as swollen tissue.

In dodders, haustoria are structures that connect the host and parasite and have the appearance of pegs or suction cups.

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Answer:

A. hydrolysis reaction.

Explanation:

Chemical Reactions.

First, let's review each concept of the group of answer choices:

- hydrolysis: is a reaction in which the net reaction is an organic compound reacting with water to give either two molar equivalents of a single product or more than one product.

- redox: is a type of chemical reaction that involves a transfer of electrons between two species.

- combustion: is a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat.

- neutralization: is a reaction that occurs when an acid and a base react to form water and a salt and involves the combination of H+ ions and OH- ions to generate water.

The problem is asking for the reaction that removes a phosphate group from ATP, so let's see the structure of ATP with one phosphate group:

What is enclosed in the red box is the phosphate group.

The reaction that removes this phosphate group represents a rupture of the structure and based on the logic of the definitions of the given concepts, the answer would be that the reaction to remove one phosphate group from ATP is A. hydrolysis reaction. This reaction looks like this:

ATP + water (H2O) -> ADP + Pi,

where ADP is the same molecule of ATP but it has two phosphate groups and Pi is the phosphate group removed.

Hence 3.23×10⁶kJ = 771970 kilo calorie.

Kilo joule is a unit of energy that is equal to 1000 joules.

1 kilojoule is equal to 1000 joules:

∵ 1kJ = 0.239kcal

∴ 3.23×10⁶kJ = 3.23×10⁶ × 0.239

                      = 771970 kcal

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This implies that pH is 1.3566.
[H2PO4-] is same as [H+] and [H3PO4] = 0.4 - 4.4 * 10^-2 = 0.356.

What is pH?
Acids and bases can be measured using a pH scale. The scale has a range of 0 to 14. An indicator called Litmus paper is used to determine whether a substance is an acid or a base. The type of substance being tested is indicated by the colour of the paper, which corresponds to the pH scale's numbers. For instance, vinegar is an acid and has a pH of 2.4. Doctors and scientists typically concur that maintaining a healthy pH balance is important for your overall health. Your diet and beverage choices have an impact on your body's pH level and potential hydrogen content. The concentration of hydrogen ions is measured by pH. On a pH scale, this calculation is based.

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Both physical and chemical properties can be used for identification of chemical substance and hence all the given statements are correct.

These properties are defined as those properties which become evident during or after a chemical reaction after the identity of the substance is changed during chemical reaction.

These properties cannot be determined externally just by viewing the substance ,these change immensely after a substance undergoes a chemical change.These are used for identification of unknown substances and for building up chemical classifications.

The major chemical properties are flammability,toxicity,reactivity,acidity and heat of combustion.For a chemical property to be apparent , it is necessary that the structure of the substance is altered.

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A process through which a large molecule such as a protein could leave the cholera cell is generally referred to as: c) exocytosis.

Cholera can be defined as a type of disease which is typically caused by a bacteria that is referred to as Vibrio cholerae. Also, cholera gets into the body of a living organism through an ingestion of contaminated food or water.

Exocytosis simply refers to a process which typically involves a cell releasing a large amount of a material (bulk transport) outside of the cell, especially through the use of vesicles.

This ultimately implies that, exocytosis can be defined as a biological process in which living organisms release (expel) large amount of unwanted material by using the vesicles.

Additionally, exocytosis is a biological process that is initiated by the Golgi apparatus and it can be used to expel a large molecule such as protein from cholera cells.

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Complete Question:

In the first stage of cholera, the bacterium finds a host cell in the small intestine. The bacterium then releases toxic proteins called toxins near the host cell. Through which process could a large molecule such as a protein leave the cholera cell?

a) osmosis

b) diffusion

c) exocytosis

d) endocytosis

The mass in grams of 2.73×1024 molecules of methanol is 154.20g.

given that:

no. of molecules = 2.73 × 10²⁴

molar mass of methanol (CH₄O) = 34.04 g/mol

moles of methanol = no. of molecules / Na

                                =  2.73 × 10²⁴ / 6.022× 10²³

                                = 4.53 mol

now, formula for the no. of mole is given as :

no. of moles = mass / molar mass

mass = no. of mole × molar mass

mass = 4.53 ×34.04

mass = 154.20 g

Thus, the mass in grams of  2.73 × 10²⁴ molecules of methanol is 154.20 g

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AConduction

B. Radiation

C. Convection

nswer:

Explanation:

Answer:

Therefore the number of oxygen atoms will be. 033 × 10 23 atoms.