1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
loris [4]
3 years ago
10

Organisms are classified into domains and other groups by similar characteristics. There are three domains: Archaea, Bacteria, a

nd Eukarya. Which of the following characteristics is used to classify organisms into domains?
genetic similarities


similarities in habitat


presence or absence of a nucleus


presence or absence of photosynthesis
Chemistry
1 answer:
Anton [14]3 years ago
8 0

Answer:

presence or absence of a nucleus

Explanation:

These classification of organisms into broad domains is based on the present or absence of nucleus in the cell of an organism.

The archaea are prokaryotes and they lack a distinct cellular nuclei.

Bacteria are similar to archaea but bacteria have only one RNA polymerase

Eukarya have true nucleus and membrane bound organelles .

So, the variations in their cells are used to classify organisms into the broad categories

You might be interested in
Hunting lions has been banned in some parts of Africa. If this law is enforced, what can we expect to happen to the populations
k0ka [10]
The population would decrease, the more predators there are the more food needed for the species .
4 0
3 years ago
Read 2 more answers
Pretty sure its easy but i cant-
enyata [817]

Answer:

Tryptophan is an essential amino acid.

5 0
3 years ago
Read 2 more answers
Where does the Sun’s light come from and why does it look different at different times of the day?
Contact [7]

Answer:

Sun light comes from the sun which is a part of our solar system

and it look different because the earth is spinning so the angle will can and that will determine if the sun rays will get light or darker

3 0
3 years ago
According to each substances heat of fusion, which of the items below requires more heat to be added per gram of substance to go
alexira [117]

<u>Answer: </u>The correct answer is Silver.

<u>Explanation:</u>

Specific heat of fusion is defined as the amount of heat which is required to raise the temperature of 1 gram of a substance to 1°C. It is generally expressed in kJ/mol

We are required to find the substance which require more heat. For that we need to know the specific heat of all the substances.

The substance which have the highest specific heat, will require more heat.

The specific heat of the given substances are:

Silver = 11.3 kJ/mol

Sulfur = 1.7175 kJ/mol

Water = 5.98 kJ/mol

Lead = 4.799 kJ/mol

The specific heat of silver is the highest and hence, will require more heat.

Hence, the correct answer is silver.

7 0
3 years ago
Find the empirical formula of the compound ribose, a simple sugar often used as a nutritional supplement. A 14.229 g sample of r
MakcuM [25]

Answer:

CH2O

Explanation:

Firstly, we need to convert the masses of the elements to percentage compositions. This can be done by placing the mass of each element over the total mass multiplied by 100% . We can start with carbon.

C = 5.692/14.229 * 100 = 40%

O = 7.582/14.229 * 100 = 53.29%

H = 0.955/14.229 * 100 = 6.71%

We then proceed to divide each percentage composition by their atomic mass of 12, 16 and 1 respectively.

C = 40/12 = 3.333

O = 53.29/16 = 3.33

H = 6.71/2 = 6.71

Dividing by the smaller value which is 3.33

C = 3.33/3.33 = 1

O = 3.33/3.33= 1

H = 6.71/3.33 = 2

The empirical formula of the compound ribose is CH2O

6 0
3 years ago
Read 2 more answers
Other questions:
  • If 15g of iron reacts with 8.5g of oxygen, how many grams of iron oxide will be produced
    14·1 answer
  • What is the mass of 8.90 moles of magnesium chloride, MgCl2?
    14·1 answer
  • It is quite natural to favor one’s own country over a foreign one. To what extent can ethnocentrism be considered a normal react
    5·1 answer
  • . A ________________ is formed when two or more ______electrons____ bond by a covalent bond.
    13·1 answer
  • When gas changes to liquid is it gaining or loosing energy?
    5·2 answers
  • What is the energy of light with a wavelength of 697 nm?
    10·1 answer
  • Limiting reactants would appreciate the help
    8·1 answer
  • How many grams of NaOH are in 200 mL of a 3.OM NaOH<br> solution?<br> Na=23<br> O=16<br> H=1.01
    7·1 answer
  • HELP WILL GIVE BRANLIEST
    12·1 answer
  • Ordinary water boils at 100°C. Can it be made to boil at 95°C or 105°C.​
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!