Select some particular plant or animal and find out how it has been improved because of the study of genetics. The following examples are given, but you may select some other topic if you like. Be sure that you have the topic and the method (written or oral) of reporting approved before you do your research. If you choose an oral report, it should be at least 3 minutes in length. If you choose a written report it should be at least 500 words in length.

Do some research into thornless varieties of plants.
What plants are available which do not have thorns?
Is thornlessness a mutation?
When and where was the possibility of growing thornless varieties of plants discovered?
How do these varieties compare with the variety that has thorns?
Consult seed catalogs, gardening books, and magazines in the library.
Do some research into the new variety of pumpkins that do not have hulls on their seeds.
Is the flavor of the new variety as good as the flavor of the older varieties, or is the new variety raised only to have seeds without hulls?
How are the seeds prepared?
Is the pumpkin seed a good source of protein?
Consult seed catalogs, gardening books, and gardening magazines.
Study the potato famine in Ireland.
Study how the use of some modern types of potatoes can help to overcome such famines.
Give some examples of potatoes which are hardy against disease.
Study the careful breeding experiments that resulted in disease resistant potatoes.
What makes them hardier and more disease resistant?
What makes them hardier and more disease resistant?
Do some research to find out about the new breeds of cattle that provide much better beef than the older breeds.
Consult a genetics book from the library to determine the names of such cattle.
what makes these breeds better? Are they cared for the same way? Do they have any drawbacks in terms of cost of breeding and raising?
You may want to investigate some of the diseases which are inherited.
Consult a genetics textbook from the library.
You may also need to look up some of these in a medical textbook or the Journal of Heredity.
Who is more likely to inherit them? Why?

Answer:

The difference is due to the fact that one water molecule has two hydrogen atoms to one oxygen atom, as explained above. This means it takes two water molecules (2 H2O) to make one oxygen molecule (O2)

Explanation:

Answer:

In H20 does the 2 apply to Hydrogen

Explanation:

In H₂O there is two atoms of hydrogen and 1 atom of Oxygen

Hence, In H20 does the 2 apply to Hydrogen

-TheUnknownScientist

the are 18.01528 grams

.....

Answer: 1

Explanation: This is true.

Answer:

the volume of a give gas simple is directly propotional assolute temperature at constant pressure .the volume of a gavi. amount of gass is inversely propotional ot Its pressure when temperature is help constant

Answer:

The laws of the universe are for all observers, and it was shown that the velocity of light in spacetime will be the same regardless of the subject's speed.

Explanation:

The principle outlines how things behave in time and space, so it could be used to model anything from black hole life to light shifting due to the gravitational, as well as the action of the terrestrial Planets in its orbit. Einstein's most popular hypothesis has far-reaching ramifications.

Answer:

Explanation:

The acceleration of an object given it's mass and the force acting on it can be found by using the formula

[tex]acceleration = \frac{force}{mass} \\[/tex]

We have

[tex]a = \frac{3000}{1000} = 3 \\ [/tex]

We have the final answer as

Hope this helps you

Answer:

Generally, all atoms of elements contain three sub-atomic particles- Protons(Positively-charged), Neutrons(Neutral) and Electrons(Negatively-charged).

The Magnitude of the Positive Charge possessed by the Protons and the Magnitude of the Negative Charge possessed by the Electrons cancel each other, which make the atom electrically neutral.

Hence,

Without any electrons, the magnitude of the positive and negative charges wouldn't balance, and the atom would be unstable and disintegrate almost immediately. Hence, all stable atoms should have electrons revolving around them, where the number of protons and electrons are the same, under normal conditions.

To Conclude,

Every atom of an element will have electrons arranged in different shells, or matter couldn't exist without electrons.

Explanation:

acid ,HNO3

base,KOH

salt ,KNO3

Answer:

m = 7.42 kg

Explanation:

Given that,

The specific heat of the soil, c = 1.700J/g C

The temperature of soil in a  flowerpot increased from 15.6°C to 35.5°C.

The energy released from the Sun is 251175 J. We need to find the mass of the soil.

We know that,

[tex]Q=mc\Delta T\\\\or\\\\m=\dfrac{Q}{c\Delta T}\\\\m=\dfrac{251175}{1.7\times (35.5-15.6)}\\\\m=7424.62\ g[/tex]

or

m = 7.42 kg

So, the mass of the soil is equal to 7.42 kg.

Answer:

0.069 moles of glucose

Explanation:

(0.138 mol/L)(0.5 L) = 0.069 moles of glucose

Answer:

[tex]\boxed {\boxed {\sf 0.069 \ mol \ C_6H_12O_6}}[/tex]

Explanation:

Molarity is the moles per liter of a solution. It is found by dividing the moles of solute (glucose) by the liters of solution (water).

[tex]M= \frac {moles}{liters}[/tex]

We know the molarity is 0.138 M. 1 M is equal to 1 mole per liter, so we can rewrite the molarity as 0.138 moles per liter.

There are 0.5 liters of solution.

We are solving for the moles, so we can use x.

[tex]0.138 \ mol/L= \frac {x }{0.5 \ L}[/tex]

We must isolate the variable (x) to solve for the moles. It is being divided by 0.5 liters. The inverse operation of division is multiplication. Multiply both sides of the equation by 0.5 L.

[tex]0.5 \ L *0.138 \ mol/L= \frac {x }{0.5 \ L}* 0.5 \ L[/tex]

The liters on both sides cancel.

[tex]0.5 *0.138 \ mol= {x }[/tex]

[tex]0.069 \ mol =x[/tex]

[tex]0.069 \ mol \ C_6H_12O_6[/tex]

Ther are 0.069 moles of glucose in a 0.138 M solution with 0.5 liters of water.

Answer:

C.

Explanation:

Answer:

This is an example of chemical change because the Kool aid dissolved and turned the water red

Answer:

30.26 grams of N₂O₃

Explanation:

Divide by Avogadro's number. This leaves you with the number of moles. Then, multiply by the molar mass of N₂O₃

Answer:

382.5 grams

Explanation:

Find the molar mass of NaNO₃ and then multiply the number of moles by that molar mass :)

Answer:

is there an attachment to this question? i can help if u insert one :)

Explanation:

(●'◡'●)

Answer: PLease see answer in explanation column

Explanation:

FIRST STEP

We  find the grams ( mass ) of solute required to prepare the solution by using  the formula

grams ( mass ) of solute, g(CaCl2)= Molar mass x Molarity of the solution x Volume of the solution

Therefore Preparing 750 mL of 1.5 M calcium chloride solution, we have that Molar mass of Calcium chloride =110.98 g/mol

g(CaCl2) =110.98 g/mol X 1.5mol/L X 0.75L

g(CaCl2) =124.8525g CaCl2

SECOND STEP

Now Dissolve 124.8525g CaCl2 in about 350ml of distilled water then add more water until the final volume be comes 750ml

Answer:

Option A

Explanation:

The total heat absorbed during the chemical reaction is the total heat released by the surrounding.

Net change of heat is equal to zero

Hence, the energy liberated from the air or the walls of the containers would be equal to the energy absorbed by the chemical reactions is equal to 100 Kj

Thus, option A is correct

Answer:

A. light energy is used in photosynthesis and created by respiration

Answer:

biomass is a plant of animal material used as fuel to produce electricity

Tidal power is energy harnessed by converting engery from tides

That's what I know so far and took notes on hope it helped:)

Answer:

It can be expressed in several ways: molarity (moles of solute per liter of solution); mole fraction, the ratio of the number of moles of solute to the total number of moles of substances present; mass percentage, the ratio of the mass of the solute to the mass of the solution times 100; parts per thousand (ppt), grams ...

Explanation:

It can be expressed in several ways: molarity (moles of solute per liter of solution); mole fraction, the ratio of the number of moles of solute to the total number of moles of substances present; mass percentage, the ratio of the mass of the solute to the mass of the solution times 100; parts per thousand (ppt), grams ...

Answer:

58.44277 I hope this works best of luck for you

Answer: ...

Explanation:

Sodium, chlorine

Answer:

2Na = 2 Sodium [has 2 atoms]

Cl2 = Dichlorine (Chlorine) [has 2 atoms]

Is this what you wanted?? I'm not entirely sure if this is the answer you were looking for.

Answer:

energy

Explanation:

. Consider a sample of oxygen gas at 27° C with a volume of 9.55L at a pressure

Answer:620 k

Explanation: