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
sergiy2304 [10]
2 years ago
11

Which of the following is found only in eukaryotes

Biology
1 answer:
kiruha [24]2 years ago
7 0
What are the choices?
You might be interested in
Explain the thermal properties of water
Zinaida [17]

Answer:

A glance of earth taken from space will depict it blue. This blue colour is actually water, the major part of the earth is covered with water. We need water for almost everything, for example- drinking, bathing, cooking etc and therefore we should know about the properties of water. 65 % human body is composed of water. Water is essential for the survival of life on earth. Water is distributed unevenly on the earth’s surface. It forms a major solvent and dissolves almost every polar solute. So let us have a look at its properties.

Physical properties of water : Water is a colourless and tasteless liquid. The molecules of water have extensive hydrogen bonds resulting in unusual properties in the condensed form. This also leads to high melting and boiling points. As compared to other liquids, water has a higher specific heat, thermal conductivity, surface tension, dipole moment etc. These properties form the reason for its significance in the biosphere. Water is an excellent solvent and therefore it helps in the transportation of ions and molecules required for metabolism. It has a high latent heat of vaporization which helps in the regulation of body temperature

Chemical properties of water: Amphoteric nature:

Water can act as both acid and base, which means that it is amphoteric in nature.

Example:

Acidic Behaviour: H2O(l)+NH3(aq) ⇌ H3O+(aq)+NH+4(aq)

Basic Behavior: H2O(l)+H2S(aq) ⇌ H3O+(aq)+HS−(aq)

Redox reactions:

Electropositive elements reduce water to hydrogen molecule. Thus water is a great source of hydrogen. Let us see an example in this case:

2H2O(l)+2Na(s)→2NaOH(aq)+H2(g)

During the process of photosynthesis, water is oxidized to O2. As water can be oxidized and reduced, it is very useful in redox reactions.

Hydrolysis reaction

Water has a very strong hydrating tendency due to its dielectric constant. It dissolves many ionic compounds. Some covalent and ionic compounds can be hydrolyzed in water.

Explanation:

7 0
2 years ago
A sample of a white powder is given to you to identify. You can use the Benedict test, the Lugol test, the Biuret test, and the
NikAS [45]
<span>Benedicts test is used for testing reducing sugar in urine and food samples. Biuret test is used for testing proteins in a sample. Sudar Red test is used to detect lipids in a sample. For starch The Lugol test is carried out. when Lugols iodine is added to sample to the powder it will turn deep bluish black color showing the sample contain starch. The other tests will not give positive results with starch powder.</span>
6 0
3 years ago
Read 2 more answers
15. Explain how each of the following creates electrical energy:
olga_2 [115]
Solar- technologies convert sunlight into electrical energy either through photovoltaic panels or through mirrors that concentrate solar radiation.

Hydro- a hydraulic turbine converts the energy of flowing water into mechanical energy. A hydroelectric generator converts this mechanical energy into electricity

Tidal- energy is a form of hydropower that works by harnessing the kinetic energy created from the rise and fall of ocean tides and currents, also called tidal flows, and turns into unusable electricity

Wind- turns the propeller like blades of a turbine around a rotor, which spins a generator, which creates electricity

OTEC- plants pump large quantities of deep cold seawater and surface seawater to run a power cycle and produce electricity

Biomass- is burned in a boiler to produce high-pressure steam. This steam flows over a series of turbine blades, causing them to rotate. The rotation of the turbine drives a generator, producing electricity

Geothermal- power plants use steam to produce electricity. The steam comes from reservoirs of hot water found a few miles or more below the earth’s surface. The steam rotates a turbine that activates a generator, which produces electricity
4 0
3 years ago
Acceptable Macronutrients Distribution Ranges refer to healthy ranges of intake for carbohydrate, fat, and protein. True False
dangina [55]

Answer:

True

Explanation:

Acceptable Macronutrients Distribution Ranges refers to adequate amount of macronutrient that should be taken in diet to avoid chronic illness or simply AMDR  refer to healthy ranges of intake for carbohydrate, fat, and protein.

ADMR tells about how the protein, Lipids and carbohydrates should be distributed in diet or how much of energy should be obtained from each macronurient.

ADMR for adults are;

Protein; 10-35%, Fat; 20-35%, Carbohydrates; 45-65%.

3 0
3 years ago
A scientist finds a new life form and determines that it contains no nuclei which are the six kingdoms could it belong to
mestny [16]
Because this new life form has no nuclei, the only kingdoms it could belong to are <span>eubacteria or archaebacteria.</span>
4 0
3 years ago
Other questions:
  • Radioactive dating of fossils and rocks is possible because radioactive isotopes
    11·1 answer
  • Which of the following are responsible for surface currents?
    7·2 answers
  • (100 POINTS AND BRAINLYEST WOAHHHH DJFIEDOSADFN) Index fossil can also show evidence of unconformity. True False
    11·2 answers
  • Which of these is a type of mass movement that is likely to happen after a large amount of rain?
    5·1 answer
  • Data mining contributes to the field of
    15·1 answer
  • When scientist compare two or more object what are they looking for?
    12·1 answer
  • Matching in the picture please help
    13·1 answer
  • An important polysaccharide is missing from the chart. It is made by animals as their storage polysaccharide, and is found mainl
    9·1 answer
  • How much vegetables should I eat a day
    12·2 answers
  • Question:
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!