what is the correct answer ??

Complete Question:

The average size of a grocery store chicken has more than doubled in the past century. What is the most likey reason for this change?

Group of answer choices.

A. Natural selection resulted in a larger species of chicken.

B. Artificial selection created a larger breed of chicken.

C. Mutations occur less frequently in chickens than they did a century ago.

D. Grocery stores used to sell younger chickens.

Answer:

B. Artificial selection created a larger breed of chicken.

Explanation:

The average size of a grocery store chicken has more than doubled in the past century. The most likely reason for this change is that artificial selection created a larger breed of chicken.

Artificial selection, also known as selective breeding can be defined as the process of identifying desirable traits in living organisms such as animals and plants, and selectively taking steps to ensure that those phenotypic traits are perpetuated in the offsprings or future generations.

This ultimately implies that, farmers or breeders are saddled with the responsibility of choosing which plant or animal are selected for the production of favorable (special) offsprings.

Answer:

hlo please help me to do my question

Answer:

hii i m here hope your day will energitic

Answer: 2 : 1

Explanation:

Cation :

Ca - calcium = atomic number = 20

Electron dot configuration : 2, 8, 8, 2

Ca losses 2 electrons in its outermost shell and thus has a charge of 2+ in other to attain a stable octet state.

Anion:

F - has 7 valence electrons and thus needs 1 electron to achieve a stable octet state, hence it accepts one electron has has a charge of (-1)

Therefore,

Ratio of cation (+) to negative (-) = 2 :1

Answer:

Are you trolling us?

Explanation:

Joule is a derived unit as, J = Nm, and N = kg m/s². So, joule depends upon many such physical units and hence, it is a derived unit.

More:-

Answer:

[tex]C_{3}H_{3} O_{1}[/tex]

Explanation:

There are empirical formula calculators on the search engine that starts with G (This word is blocked by Brainly) and if you really need to use it, there's an option you can choose. However, I will try to explain this.

C = 65.4

H = 5.5

O = 29.1

We first need to divide the percentages by their molar mass.

65.4/12.01 = 5.44

5.5/1.008 = 5.46

29.1/16 = 1.8

We then need to divide these numbers by the smallest number we obtained.

1.8 is smaller than 5.46 and 5.46, so we would divide all three numbers with 1.8.

5.44/1.8 = 3

5.46/1.8 = 3

1.8/1.8 = 1

This means that there are 3 atoms of C and H and 1 atom of O, giving us the empirical formula of [tex]C_{3}H_{3} O_{1}[/tex].

Answer:

#50316 in Other Chemistry for Meagan

How many moles of glucose does 1.2 x 1024 molecules represent? 1 mole of any substance has 6.02 x 1023 . For getting thenumber of moles we can divide 1.2 x 1024/6.02 x 1023 and we receive 2 moles.

Answer:

B - by gaining 2 electrons

Explanation:

Answer:

The atoms of group 16 elements become

stable by gaining two electrons.

Answer:

net force

Explanation:

The net force acting on an object is the combination of all of the individual forces acting on it. ... If two forces act on an object in the same direction, the net force is the sum of the two forces.

Answer:CO2(g) will be formed at a faster rate in experiment 2 because more H+ particles can react per unit time

Explanation:

[tex]CO_2_{(g)}[/tex] will be formed at a faster rate in experiment 2 because more H+ particles can react per unit time. The correct option is C.

A chemical reaction is a process that transforms one or more substances, known as reactants, to one or more different substances, known as products. Chemical elements or compounds are examples of substances.

Combination, decomposition, single-replacement, double-replacement, and combustion are the five basic types of chemical reactions.

Analyzing the reactants and products of a specific reaction will allow you to categorize it. Some reactions will fall into multiple categories.

If both experimental studies are carried out with finely powdered samples of the solid and 50.0mL of HCl (aq), then [tex]CO{_2_{(g)}[/tex] will be formed at a faster rate in experiment 2 because more H+ particles can react per unit time.

Thus, the correct option is C.

For more details regarding a chemical reaction, visit:

https://brainly.com/question/29039149

#SPJ2

Answer:

d = distance traveled by her on her bicycle on a long flat road = 24 kilometer

t = time taken by her to travel distance "d" on her bicycle on a long flat road = 1.2 hours

v = average speed of vivian = ?

we know that average speed is given as

v = d/t

inserting the values in the above formula

v = 24 kilometer / 1.2 hour

v = 20 kilometer/hour

hence the correct choice is

C) 20 km/h

Answer:

15.999 it would turn into 16 then.

Explanation:

If the element has 8 protons that means the atomic number is 8 which is on the periodic table, which shows oxygen has the atomic number of 8. Oxygen has an atomic mass of 15.999 which rounds up to 16, hope this helps.

Answer:

Bye the way, u welcome ;)

In heat transfer by radiation, energy is carried by electromagnetic waves from a starting point to the space surrounding it and does not involve contact with matter. The other forms of heat transfer cannot produce any of the energy that arrives to Earth through the vacuum of space.

The mass of ethanol (alcohol) = 538.016 g

Given

Reaction

C₁₂H₂₂O₁₁(aq)+H₂O(I) = CH₃CH₂OH(aq)+CO₂(g)

1 kg of sugar = 1000 g

Required

The mass of ethanol

Solution

Balanced equation

C₁₂H₂₂O₁₁(aq)+H₂O(I) = 4CH₃CH₂OH(aq)+4CO₂(g)

mol of sugar (MW = 12.12+22.1+11.16=342 g/mol) :

mol = mass : MW

mol = 1000 g : 342 g/mol

mol = 2.924

From the equation, mol ratio of C₁₂H₂₂O₁₁ : CH₃CH₂OH = 1 : 4, so mol ethanol =

= 4 x mol sugar

= 4 x 2.924

= 11.696

Mass of ethanol(MW=46 g/mol) :

mass = mol x MW

mass = 11.696 x 46

mass = 538.016 g

Answer:

C

Explanation:

When a dentist has you do xrays there are waves thats what the vest is for

Answer:

Conduction

Explanation: In conduction, heat is transferred by direct contact. The better the conductor, the more rapidly heat will be transferred.

There is no answer, science is about empirical knowledge, technology is the sum of techniques, skills, methods, and processes. I do not believe that you will find a answer for that.

Answer:

If it is denser then water it shall float  but if water has a higher density the object sinks

Explanation:

Answer:

126.86

Explanation:

Iodine-127 (80%)

Iodine-126 (17%)

Iodine-128 (3%)

For a mixture of isotopes, the average atomic mass is obtained by summing the multiplication of the atomic mass and percentage composition of the individual isotopes. This is given as;

Average Atomic Mass =  ( 80 / 100 *   127)  +  (17 / 100 *  126)   +  (3 / 100   *   128)

Average Atomic Mass =  0.8  *  127   +   0.12  *  126   +  0.03  *  128

Average Atomic Mass = 101.6  + 21.42 + 3.84  = 126.86

Answer:

A

Explanation:

Answer:

1

Explanation:

A.) A single bond shares 1 pair of electrons between 2 atoms.

B.) A double bond shares 2 pairs of electrons between 2 atoms.

C.) A triple bond shares 3 pairs of electrons between 2 atoms.

Answer:

2gcm⁻³

Explanation:

Given parameters:

Mass of the object  = 20g

Volume = 10mL

Unknown:

Density of the object  = ?

Solution:

Density of a body is its mass per unit volume;

   Density  = [tex]\frac{mass}{volume}[/tex]  

We need to convert mL to cm³ for the volume

     1mL  = 1cm³;

        10mL is therefore, 10cm³  

So;

       Density  = [tex]\frac{20}{10}[/tex]   = 2gcm⁻³

A test cross can help determine whether a dominant phenotype is h.o.m.o.zygous or heterozygous for a specific allele.

hope this helps ^^

Answer:

6

Explanation:

The electronic configuration of the atom is:

            1s² 2s² 2p⁴

The valence electrons are the electrons in the outermost shell of an atom. The number electrons in the highest orbitals with the highest quantum number will determine the valency of the atom.

 For the given atom:

         2s² 2p⁴ is the orbital  = 2 + 4  = 6

There are 6 valence electrons in the given atom

Answer:

because gravitational force effects on wood as compare to paper