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
Paraphin [41]
3 years ago
13

Why do concentration gradients exist?

Biology
1 answer:
Lostsunrise [7]3 years ago
7 0

B. To contrast between the high and low concentration of molecules.

for example a solution with a higher solute concentration than the inside of the cell is called hypertonic

You might be interested in
Que atracción tiene el ab positivo con el ab negativo?​
ivanzaharov [21]
What attraction does the positive ab have with the negative ab?
4 0
3 years ago
Scrivi tutti gli isomeri dell’esano
MaRussiya [10]

Answer: i cinque isomeri possibili per l'esano sono n-esano, 2-metil pentano, 3-metil pentano, 2, 3-dimetilbutano e 2, 2-dimetilbutano. - 2-metil pentano è anche chiamato isoesano. - 2, 2-dimetil butano chiamato anche Neoesano.

Explanation:

7 0
2 years ago
Situational context is the social and environmental setting in which a particular behavior takes place. true or false
jenyasd209 [6]
It is true that situational context is the social and environmental setting in which a particular behavior takes place.
8 0
3 years ago
Read 2 more answers
If the population returns to its pre-disturbance size, genetic variation is generally ____________ than in the original populati
Maurinko [17]
The answer is lower because having to return to a pre disturbance size will likely affect its genetic variation to be lower compared to the original population where in its genetic variation will be greater compared to those in pre disturbance size.
4 0
3 years ago
Describe the actual and relative sizes of a virus, a bacterium, and a plant or animal cell.
anzhelika [568]

Answer :

The animals are categorized into 2 groups - eukaryotes and prokaryotes. The microbes like bacteria are coming under prokaryotes. They are unicellular organisms and without a true nucleus.

Viruses are the connecting link between the living and non - living. They are smaller than bacteria. The microbes less than 100 micrometer can't be seen by the naked eye. They can only visible under a microscope.

Viruses like polio, flu virus sizes are 10nm. But some of the viruses are also less than 10nm. The size of bacteria is 1 micrometer. The viruses are 10 times smaller than the bacteria.

The eukaryotic organisms are more advanced and multicellular. Their cell size is larger than bacteria and viruses. The red blood cells under the light microscope are 8 micrometers. The typical animal cells like sperm are 60 micrometers and a skin cell is 30 micrometers. The plant cell for example pollen is 90 micrometers.

The eukaryotic cells sizes are more than prokaryotes like bacteria.

3 0
3 years ago
Other questions:
  • A fetus has been developing for three months. what will happen next apex
    7·2 answers
  • Binary fission is a characteristic of kingdom ______ and is most similar to the cellular processes of _________.
    10·2 answers
  • Cellular respiration occurs in: select one:
    13·1 answer
  • What is the scientific name of 'touch me not' plant? can you give an explanation about its mechanism?
    7·2 answers
  • A reef is made from the hard _________ of marine organisms.
    9·1 answer
  • Here is ANOTHER ACCOUNT! DO NOT CLICK ON LINKS LIKE THESE! THEY ARE NOT SAFE! SPREAD THE WORD!
    13·1 answer
  • Which factor is needed for both thunderstorms and hurricanes to form?
    12·2 answers
  • Which career would best suit Callie's interests in the scenario below?
    15·1 answer
  • Which population is limited by a density- dependent factor?
    7·1 answer
  • The component molecules of cells have two main parts, the head and the tail. These parts are either hydrophobic or hydrophilic.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!