Answer:
Mass of nitrogen = 25.222g
Explanation:
We know that the mass of the unknown composition is 58.0g, so the total mass must add up to 58.0g, so let's make the unknown mass of nitrogen = x
24.3g + 3.072g + 5.406g + x = 58.0g
32.778g + x = 58.0g
x = 58.0g - 32.778g = 25.222g
What is an ionic bond with two suitable examples explain the difference between an ionic and a covalent bond?
Covalent bonds are created between two nonmetals, whereas ionic bonds are formed between a metal and a nonmetal.
Covalent bonds between atoms develop when there is little to no difference in the electronegativity of the atoms, whereas ionic bonds form when there is a large difference.
Covalent bonds are created when the half-filled atomic orbitals of two different atoms overlap, but ionic bonds cannot be created by overlapping orbitals.
For example, the ionic bond in NaCl is written as Na⁺Cl⁻ because sodium is a metal and chlorine is a non-metal.
Let's use methane as an example. Due to the low difference in electronegativity between carbon and hydrogen, the atomic orbitals of these two elements meet in this molecule and form a covalent bond.
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When the following reactions come to equilibrium, does the equilibrium mixture contain mostly reactants or mostly products?
H2 (g) + S (s) <--> H2S (g) Kc = 7.8 x 105
N2 (g) + 2H2 (g) <--> N2H4 (g) Kc = 7.4 x 10-26
Is large, the equilibrium mixture is mostly products. If Kc is small, the equilibrium mixture is mostly reactants. When Kc is approximately 1, the equilibrium mixture contains appreciable amounts of both reactants and products.
What is equilibrium?Equilibrium is the state in which market supply and demand balance each other, and as a result prices become stable. Generally, an over-supply of goods or services causes prices to go down, which results in higher demand—while an under-supply or shortage causes prices to go up resulting in less demand.The balancing effect of supply and demand results in a state of equilibrium.The equilibrium price is where the supply of goods matches demand. When a major index experiences a period of consolidation or sideways momentum, it can be said that the forces of supply and demand are relatively equal and the market is in a state of equilibrium.Economists find that prices tend to fluctuate around the equilibrium levels. If the price rises too high, market forces will incentivize sellers to come in and produce more. If the price is too low, additional buyers will bid up the price. These activities keep the equilibrium level in relative balance over time.To learn more about momentum refer to:
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Choose the correct IUPAC name for the following bicyclic compound.
A. 2-fluorobicyclo[2.2.1]hexane
B. 2-fluorobicyclo[2.1.1]hexane
C 5-fluorobicyclo[2.1.1]hexane
D. 6-fluorobicyclo[2.1.1]hexane
E. 3-fluorobicyclo[2.2.0]pentane
F. 4-fluorobicyclo[2.1.0Jpentane A
The correct IUPAC name of bicyclic compound is option no.4 (1alpha,4alpha)-5alpha-Fluorobicyclo[2.1.0]pentane.
The molecular formula of this compound is C₅H₇F and the molecular weight of this compound is 86.11. It has a 3D conformer.
IUPAC nomenclature is a method of naming organic chemical compounds which is recommended by the applied chemistry or the international union of pure. IUPAC names sometimes very simpler than the older names, as with ethanol instead of ethyl alcohol. For a relatively simple molecules they can be more easily understood than to the non-systematic names, which must be learnt as well as looked over. It should have maximum number of multiple bonds, maximum length as well as number of single bonds.
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The height of a cylinder with a radius of 4 cm is increasing at a rate of 2 centimeters per minute. Find the rate of change of the volume with respect to time when the height is 10 centimeters.
The rate of change of the volume with respect to time is 32π cm³/min. To find the rate of change of the volume with respect to time, we need to take the derivative of the volume function with respect to time, which is denoted by dV/dt.
The formula for the volume of a cylinder is V = πr²2h, where r is the radius and h is the height. To find the rate of change of the volume with respect to time, we need to find the derivative of V with respect to t.
Let's call h(t) the height of the cylinder at time t, so it is increasing at a rate of 2 cm/min.
dV/dt = d/dt (πr²h(t)) = πr²2 dh/dt = π(4²)(2) = 32π cm³/min
When the height is 10 cm, the rate of change of the volume with respect to time is 32π cm³/min.
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Circle the atom in each pair that has the greater electronegativity.
a) Ca Ga
b) Li O
c) C1 S
d) Br As
e) Ba Sr f) O S
Pair of each atom that has a greater electronegativity a) Ga, b) O, c) Cl, d) Br, e) Sr.
How can you determine which electronegativity is higher?On the periodic table, electronegativity generally increases as you move from left to right across a period and decreases as you move down a group. As a result, the most electronegative elements are found on the top right of the periodic table, while the least electronegative elements are found on the bottom left.
Why is electronegativity higher?The electrons with negative charges are drawn to the positive charge protons in the nucleus.The electronegativity / attraction will rise with the amount of protons present in the nucleus.
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What is the Law of
Conservation of Mass?
A. The total mass of the products will always
be equal to the total mass of the reactants.
B. The total mass of the products will always
be more than the total mass of the reactants.
C. The total energy of the products will
always be equal to the total energy of the
reactants.
D. The total mass of the products will always
be less than the total mass of the reactants.
draw the line-angle structural formula for cyclopropane
The line angle structure formula for cyclopropane is C3H6 or (CH2)3 with three methylene groups attached at the corner of a triangle.
The cycloalkane, cyclopropane has the chemical formula (CH2)3, and it is made up of three methylene groups (CH2) that are joined together to create a ring. The structure experiences significant ring strain as a result of the ring's modest size. The structure of cycloprane is depicted in the image attached.
A line-angle formula, also known as a skeletal structure, is even more condensed. In this formula, carbon atoms are implied at the corners and ends of lines, and each carbon atom is assumed to be connected to enough hydrogen atoms to give it four bonds. This is because carbon atom has a valency of four or it is a tetravalent atom.
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Element Molar mass (\pu{g/mol}g/molg, slash, m, o, l)
\ce{H}HH 1.0081.0081, point, 008
\ce{C}CC 12.0112.0112, point, 01
\ce{O}OO 16.0016.0016, point, 00
Using the information in the table, calculate the number of moles in a \pu{5.73 kg}5.73 kg5, point, 73, space, k, g sample of lactic acid (\ce{C3H6O3}CX
3
HX
6
OX
3
).
The number of moles in the 5.73 Kg sample of lactic acid, C₃H₆O₃, is 63.61 moles
How do I determine the number of moles in the sample?The relationship between number of mole and molar mass is given below:
Number of mole = mass / molar mass
With the above formula, we can obtain the number of mole in the 5.73 Kg sample of lactic acid, C₃H₆O₃. Details below:
Molar mass of H = 1.008 g/molMolar mass of C = 12.01 g/molMolar mass of O = 16 g/molMolar mass of C₃H₆O₃ = (12.01 × 3) + (1.008 × 6) + (16 × 3) = 36.03 + 6.048 + 48 = 90.078 g/molMass of C₃H₆O₃ = 5.73 Kg = 5.73 × 1000 = 5730 gNumber of mole of C₃H₆O₃ =?Mole = mass / molar mass
Number of mole of C₃H₆O₃ = 5730 / 90.078
Number of mole of C₃H₆O₃ = 63.61 moles
Thus, the number of mole of the lactic acid, C₃H₆O₃ is 63.61 moles
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The circumference of a circle is 11π cm. What is the area, in square centimeters? Express your answer in terms of \piπ
The circumference of a circle is 11π cm. Then the area is 30.25 π cm.
What do you mean by area ?The term area is defined as the region bounded by the shape of an object. The area of a shape is the space covered by a figure or any two-dimensional geometric shape in a plane.
The area of a shape is the measurement of its surface. To calculate the area of a rectangle or square, multiply the length and width of the rectangle or square.
C = pi d
Therefore,
11π cm = diameter
Radius is 1/2 the diameter
Then radius = 5.5π cm
Area = πr²
Area = 30.25 π
Thus, The circumference of a circle is 11π cm. Then the are is 30.25 π cm.
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Match the appropriate benefit of dietary fiber intake to its associated disease. (Use each choice only once). Cardiovascular Disease A. Lowers Blood Cholesterol Hypertension B. Lowers Blood Pressure Type 2 Diabetes c. Decreases intestinal transit time and exposure to potential toxins Constipation D. Slows absorption of glucose Obesity E Slows rate of digestion, promotes satiety Colon Cancer F. Increases fecal bulk & promotes regularity
Cardiovascular diseases (CVDs) are the most common cause of death worldwide, claiming the lives of an estimated 17.9 million persons each year. CVDs are a group of heart and blood disorders.
How is blood made in the human body?The bone marrow produces stem cells, the building blocks that the body uses to make the different blood cells – red cells, white cells and platelets. The erythropoietin sends a message to the stem cells telling more of them to develop into red blood cells, rather than white cells or platelets.
What is in human blood?Whole blood is made up of red blood cells, white blood cells and platelets, all of which are suspended in a liquid called plasma. Whole blood and each of it's four components are all valuable tools in modern medicine.
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Humans process some foods by adding chemicals to reduce harmful bacterial growth. This allows foods to be edible for longer periods of time. Which best describes the advantages of food processing?.
According to the claim, one benefit of food processing is its capacity to lessen the growth of dangerous germs, which in turn prolongs the shelf life of food.
Thus, Extended Shelf Life: Perishable goods can have their shelf lives extended by using food processing procedures like canning, freezing, or adding preservatives. Customers may now preserve and enjoy these items for longer periods of time without worrying about them going bad.
Improved Food Safety: Food processing aids in lowering the risk of foodborne illnesses by employing chemicals and processing techniques that stop the growth of dangerous germs.
Thus, According to the claim, one benefit of food processing is its capacity to lessen the growth of dangerous germs, which in turn prolongs the shelf life of food.
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How many molecules of carbon dioxide are released during one turn of the citric acid cycle?
How many molecules of O2 are in the container in problem 6? How many atoms of oxygen
The number of molecules or the number of atoms that the oxygen has has is 9.6 * 10^22 molecules/ atoms.
What is the number of molecules of oxygen present?We have to note that the number of the molecules of the oxygen that we have can be obtained by the use of the hypothesis that have been put forward by Avogadro.
We know that;
22.4 L of oxygen is contained in one mole of oxygen
3.5 L of oxygen would contain 3.5 * 1/22.4
= 0.16 moles of oxygen
If 1 mole of oxygen contains 6.02 * 10^23 molecules /atoms
0.16 moles of oxygen would contain 0.16 * 6.02 * 10^23/1
=9.6 * 10^22 molecules/ atoms
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Missing parts;
How many molecules of O2 are in a 3.5-liter container? How many atoms?
A reaction yields 0.00961 mol of O2 gas. What
volume will the gas occupy if it is collected at
34.0◦C and 0.922 atm pressure?
The gas will occupy 0.2624 L at 34.0 [tex]^oC[/tex] and 0.922 atm pressure.
Ideal gas problemFor an ideal gas:
PV = nRT
Where P is the pressure of the gas, V is the volume of the gas, R is the ideal gas constant, and T is the temperature in kelvin.
In this case:
P = 0.922 atm
V is what we are looking for
n = 0.00961 mol
R = 0.082 L atm.mol−1⋅K−1
T = 34 + 273 = 307 kelvin
Making V the subject of the formula:
V = nRT/P
= 0.00961 x 0.082 x 307/0.922
= 0.2624 L
In other words, the volume that the oxygen will occupy would be 0.2624 L.
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The process in which a solution of known concentration is used to determine the concentration of an unknown solution is called what
The process in which a solution of known concentration is used to determine the concentration of an unknown solution is called titration
What is titration?Titration is a method used to determine the concentration of an unknown solution by measuring the volume of a solution of known concentration that is needed to react with a specific amount of the unknown solution.
There are different types of titrations, each with its own specific endpoint, depending on the type of reaction taking place. For example, acid-base titrations use an indicator to signal the endpoint, while redox titrations use an electrode or a color change to signal the endpoint.
Therefore, Titrations are commonly used in laboratories to determine the concentration of a wide variety of substances, such as acids, bases, and electrolytes in a solution. They are also used in industries such as food, pharmaceuticals and environmental analysis.
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Transfer of lactase to pH 5 results in a substantial decrease in enzyme activity, likely due to the disruption of
The enzyme's secondary, tertiary, and quaternary structures are probably disrupted when lactase is transferred to pH 5, which causes a significant drop in enzyme activity.
Which one of these could lead to the denature of a protein?Protein denaturation can be brought on by a wide variety of substances and circumstances, including heat, chemical molecules, pH changes, and heavy metal ions.Lactase activity benefits from a pH of 6. The enzyme's secondary, tertiary, and quaternary structures are probably disrupted when lactase is transferred to pH 5, which causes a significant drop in enzyme activity.The enzyme's secondary, tertiary, and quaternary structures are probably disrupted when lactase is transferred to pH 5, which causes a significant drop in enzyme activity.To learn more about lactase refer to:
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"How many grams of NH3 can be produced from the reaction of 28 g of N2 and 25 g of H2?
N2 + 3H2 ---> 2NH3
==> 28 g N2 x (1 mol N2/14.0 g N2) x (2 mol NH3/1 mol N2) x ( 17.0 g NH3/ 1 mol NH3) = 68 g NH3
25 g H2 x ( 1mol H2/2.0 g H2) x (2 mol NH3/3 mol H2) x (17 g NH3/2 mol NH3) = 141.7 g NH3
So, 68 g NH3 can be produced because N2 is the limiting reactant and you will run out of it first.
To find how much excess reagent is left, we need to do the reaction backwards using the previous answer.
68 g NH3 x ( 1mol NH3/17.0 g NH3) x ( 3 mol H2/2 mol NH3) x ( 2.o g H2/1 mol H2) = 12 g H2
25-12=13 g H2 "
28 grams of N2 x (1 mol N2/14.0 grams of N2) x (2 mol NH3/1 mol N2) x (17.0 g NH3/ 1 mol NH3) = 68 grams NH3
25 g H2 x (1mol H2/2.0 g H2) x (2 mol NH3/3 mol H2) x (17 grams NH3/2 mol NH3) = 141.7 grams of NH3
So, 68 g NH3 can be produced because N2 is the limiting reactant, and you will run out of it first.
To find how much excess reagent is left, we need to do the reaction backward using the previous answer.
68 g NH3 x (1mol NH3/17.0 g NH3) x (3 mol H2/2 mol NH3) x (2.o g H2/1 mol H2) = 12 g H2
25-12=13 g H2 "
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Once the two atoms are bonded together, can you move the two atoms as a pair?
will mark brainliest!!
The following data was collected when a reaction was performed experimentally in the laboratory.
Reaction Data
Reactants Products
Fe2O3 Al Al2O3 Fe
Starting Amount in Reaction 3 moles 5 moles ? ?
Determine the maximum amount of Fe that was produced during the experiment. Explain how you determined this amount.
The maximum amount of Fe that was produced during the experiment is 3 moles.
This can be determined by using the law of conservation of mass which states that the total mass of the reactants is equal to the total mass of the products. The starting amount of reactants is 3 moles of Fe2O3 and 5 moles of Al. The reaction produces Al2O3 and Fe. So, in order to balance the equation, the moles of Fe produced must be equal to the moles of Fe2O3 that were consumed.
Fe2O3 + 2Al -> Al2O3 + 2Fe
Since 3 moles of Fe2O3 were used, the maximum amount of Fe that can be produced is 3 moles.
Answer: 2.5 moles of Fe
Explanation:
Balanced Equation: Fe2O3 + 2AI ---> 2Fe + AI2O3
Mole Ratios:
- for FE2O3: (1mol Fe / 1mol Fe2O3)
- for AI: (1mol Fe / 2mol AI)
Stoichiometry Equation for Each Reactant:
- (3mol Fe2O3 / 1) x (1mol Fe / 1mol Fe2O3)
- (3/1) x (1mol Fe/1)
- 3mol Fe
- (5mol AI / 1) x (1mol Fe / 2mol AI)
- (5/1) x (1mol Fe/2)
- 2.5mol Fe
The maximum amount of Fe that can be produced is 2.5 moles; as AI is the limiting reactant
What is the new volume when an expandable 4.51 L container of gas at 273 K is warmed to 546 K? V = [?] L
It will now be 8.3L in volume.
Volume explain: What is it?Volume is the quantity of space a thing occupies, whereas capacity is a measure of the substance it can store, such as a solid, a liquid, or a gas. While capacity can be measured in virtually any other unit, such as liters, gallons, pounds, etc., volume is measured in cubic units.
What are volume and what is its unit?Volume is the three-dimensional space inhabited by matter or encompassed by a surface, and it is measured in cubic units. The cubic meter (m3), a derived unit, is the SI unit of volume.
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Answer: the answer is 9.02
Explanation:
I figured the answer out because 273 x 2 equals 546 so I thought you had to multiply 4.51 x 2 and the answer is 9.02
Is NADH the final electron acceptor?
No, isn't. NADH (nicotinamide adenine dinucleotide) is not the final electron acceptor in cellular respiration.
NADHIn the final stage of cellular respiration, the electron transport chain uses a series of electron carriers to transfer electrons from NADH and FADH2 to the final electron acceptor, which is oxygen (O2). The energy from these electrons is used to pump protons across a membrane, creating a proton gradient that drives the production of ATP through ATP synthase.
If you want to obtain the final electron acceptor in cellular respiration, you would need to provide an alternative electron acceptor in the electron transport chain. The most common final electron acceptors used in cellular respiration are oxygen (O2) in aerobes and non-oxygen compounds such as nitrate (NO3-), sulfur (S), or carbon dioxide (CO2) in anaerobes.
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. A carbocation is all of the following, except
O a positively charged species.
O a reactive intermediate.
O an electrophile.
O a nucleophile.
A carbocation is all of the following, except a nucleophile.A carbocation is a positively charged species, a reactive intermediate, and an electrophile, but it is not a nucleophile.
Nucleophiles are species that donate electrons to form a new covalent bond, while electrophiles are species that accept electrons to form a new covalent bond. Carbocation have a positive charge and therefore it is an electrophile.A carbocation is a type of organic cation in which a carbon atom has a positive charge. Carbocations are formed by the removal of a leaving group from an organic molecule, such as an alkane, alkyl halide, or alkyne, creating a positively charged carbon atom. Carbocations are typically intermediate species in organic reactions and are highly reactive, as the positive charge on the carbon atom creates a high degree of electron deficiency.
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What is the pressure of a mixture of nitrogen carbon dioxide and oxygen?
The pressure of a mixture of nitrogen, carbon dioxide, and oxygen gases (PO₂ = 254 mm Hg, PN₂ = 0.351 atm, and PCO₂ = 43.9 kPa) is 113.3 kPa
The total pressure exerted by a gas mixture is the sum of the partial pressures of the component gases. For example, Earth's atmosphere is a mixture of gases consisting of nitrogen, oxygen, argon, carbon dioxide, and other gases. Partial pressure is the pressure that each gas has in a mixture so that the pressure of each gas is not affected by the presence of other gases.
The partial pressure formula is:
Ptotal = PNitrogen + Poxygen + PCarbon dioxide.
In question:
PO₂ 254 mm Hg = 33.9 kPa
PN₂ 0.351 atm = 35.5 kPa
PCO₂ = 43.9 kPa
So,
Ptotal = PO₂ + PN₂ + PCO₂
Ptotal = 33.9 kPa + 35.5 kPa + 43.9 kPa
Ptotal = 113.3 kPa
The pressure of a mixture of nitrogen, carbon dioxide and oxygen gases are 113.3 kPa.
Complete the question:
What is the pressure of a mixture of nitrogen carbon dioxide and oxygen gases if the pressures of these gases are as follows: PO2 = 254 mm Hg, PN2 = 0.351 ATM, and PCO2 = 43.9 kPa?
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What would the mass be, in grams, of 1.99 x 1024 molecules of P4010?
Avogadro's constant says that 1 mole of any atom [tex]6.022*10^2^3[/tex] contains atoms. In this case, you have [tex]1.99 * 10^2^4[/tex] atoms:
[tex]1.99*10^2^4/6.022*10^2^3=3.3[/tex]
1 mole of p4010 = 283.889
So [tex]1.99* 10^2^4[/tex] molecules mass is
[tex]283.889*3.3=936.833 gram[/tex]
Therefore, the mass in grams, of 1.99 x 1024 molecules of P4010 is 936.833 grams.
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How many moles of magnesium is 3.01 x 1022 formula units of magnesium?
Answer:
So 3.01 times 10 to the 22 atoms is 050 moles magnesium
Explanation:
hope this helps
the number of objects in a mole of something is dictated by which constant? One mole of a substance is equal to 6.022 xd7 10xb3 units of that substance (such as atoms, molecules, or ions). The number 6.022 xd7 10xb3 is known as Avogadro’s number or Avogadro’s constant. The concept of the mole can be used to convert between mass and number of particles.. Created by Sal Khan.a. trueb. false
The number of objects in a mole of something is dictated by Avogadro's constant and the given statement is TRUE.
One mole of a substance is equal to 6.022 x 10^23 units of that substance (such as atoms, molecules, or ions), and this number is known as Avogadro's number or Avogadro's constant. The concept of the mole is a unit of measurement used in chemistry to express amounts of a chemical substance. It is defined as the amount of a substance that contains the same number of entities (such as atoms, molecules, or ions) as there are in 12 grams of pure carbon-12. Avogadro's constant, 6.022 x 10^23, is used to relate the number of entities in a substance to the number of moles of that substance. This allows for the conversion between mass and number of particles, as well as for the calculation of the number of entities in a given mass of a substance.
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Balance the following equations
1. N2O5 -> N2O4 + O2
2. KNO3 -> KNO2 + O2
3. NH4NO2 -> N2 + H2O
4. O3 -> O2
5. Zn + AgCl -> ZnCl2 + Ag
6. NaOH + H2SO4 -> NA2SO4 + H2O
The following are the balanced chemical equations: 1). 2N2O5 -> 2N2O4 + 1O2, 2). 2KNO3 -> 2KNO2 + O2, 3). NH4NO2 -> N2 + 2H2O, 4).2O3 -> 3O2, 5). Zn + 2AgCl -> ZnCl2 + 2Ag, 6). 2NaOH + H2SO4 -> Na2SO4 + 2H2O.
Which five chemical equations are there?Synthesis, breakdown, single replacement, doubling replacement, and combustion are the five main categories of chemical reactions. One material is created from several reactants in a composition reaction.
What are class 10 chemical equations?A chemical equation is a symbol- and formula-based valid expression of a chemical reaction, with the reactant entities given on the left side and the resultant entities given on the right. Examples are NaOH+HClNaCl+H2O.
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What causes a gas to effuse?
Effusion is said to happen when gas molecules escape into a vacuum through a pinhole.
One gas mixes with another during diffusion, typically through thermal random motion that causes collisions and releases molecular energy. The capacity of gas to pass through a small aperture is known as effusion. In chemistry, the phrases effusion and diffusion are frequently used to refer to two distinct properties of gases.
However, for many who are just beginning to learn about gases, studying the terminologies can get rather perplexing. Although they may have a similar sound, the phrases diffusion and effusion are completely different. They cannot be used interchangeably since they have different meanings.
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Titanium (IV) oxide (TiO2) is a white substance that is produced by reaction between the mineral ilmenite (FeTiO3) and sulfuric acid:
FeTiO3 + H2SO4 -> TiO2 + FeSO4 + H2O
In one process 8.00 X10 3 kg of FeTiO3 yielded 3. 67 X 103 kg of TiO2. What is the yield of the reaction?
Sulfuric acid reacts with the mineral ilmenite to form titanium(IV) oxide (TiO2), a white material. The reaction has a Percentage of yield 76.3%.
What is Percentage of yield ?The amount of product actually made compared with the maximum calculated yield is called the percentage yield.
The amount of product produced by a chemical reaction is known as the real yield.The amount of product derived from a stoichiometric or balanced equation utilizing the limiting reactant to calculate product is known as the theoretical yield.Actual yield/Theoretical yield*100
FeTiO3 + H2SO4 -> TiO2 + FeSO4 + H2O
Molar mass of FeTiO3 = 152 g / mole
Number of mole of FeTiO3 = Mass / molar mass
= 8.65 x 10³ / 152
= 56907 g / mole
By solving the equation
Number of moles of TiO2 = 56907 g / mole
Mass of TiO2 = molar mass x number of moles
= 80 x 56907
= 4552560 = 4.55 x 10³
Percent yield = 3.47 x 10³ / 4.55 x 10³ x 100
= 0.763 x 100
= 76.3 %
Thus, Titanium(IV) oxide (TiO2) is a white substance produced by the action of sulfuric acid on the mineral ilmenite. The percent yield of the reaction is 76.3%.
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all ________ are metazoans.
All species of life are metazoans. Eukaryotes with several cells and mitochondria are called metazoan animals.
What makes animals metazoans?All multicellular organisms with differentiated body parts, including tissues and organs, belong to the Metazoa group. They have specialized cells lining the cavity of their digestive system. They have nucleated cells with cell membranes.
How can you recognize a metazoan?The majority of metazoans have bilateral symmetry. They display the division of labor. The body organization of lower invertebrates is at the tissue or organ level, whereas the body organization of larger invertebrates and vertebrates is at the organ-system level. Unlike protozoans, which have a cell wall, animals don't.
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