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
-BARSIC- [3]
3 years ago
15

What id the definition of a cell

Biology
1 answer:
bixtya [17]3 years ago
6 0
The smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane. Microscopic organisms typically consist of a single cell, which is either eukaryotic or prokaryotic.
You might be interested in
What results if water is heated and and highly pressured underground
Andrew [12]

The answer is a geyser on apex

4 0
2 years ago
Read 2 more answers
If polar is positive and non-polar is negative then why can’t a polar molecule pass through the non-polar phospholipid membrane
Ierofanga [76]

Answer:

Because of the chemical and structural nature of the phospholipid lipid by layer the lipid soluble molecule can just pass the lipid membrane and some small molecules can also pass freely.

Explanation:

as we know that the homeostasis is an important process for a  living cell to maintain it self so for the the exchange of materials between the external and internal environment is must so for that it exchange material with the outside environment of the cell.as the cell membrane is semipermeable(mean allow some molecule to pass(lipid soluble) and not others(lipid non soluble) to pass through the membrane.the cell membrane is selectively permeable due to its nature and chemical composition the chemical composition is lipid and  phosphate and glycerol(head) with fatty acid that may b saturated or unsaturated(tail).so finally all those molecule which are polar can not pass through the membrane and  non polar can pass the membrane.The size of the molecule is also a factor on which the permeability depends.

3 0
2 years ago
What do catalytic converters do?
schepotkina [342]

Answer:

a catalytic converter is device made up from metals like metals like palladium and rhodium to reduce the toxic gases emitted in the environment

Explanation:

Catalytic converter is an exhaust emission controlling device. It was made to reduce pollutants in air. Almost every automobile has a catalytic converter. It is present to completely remove the fuel that was not combusted and other toxic/dangerous compounds before they are let out in the environment.

If the catalytic converters are not used then the harmful compounds are released in the air and thus increasing air pollution and also decreasing the air quality for breathing in the surrounding environment.

5 0
3 years ago
Read 2 more answers
Earth is composed of layers of material with different properties. Which
Irina-Kira [14]

Answer:

mantle

Explanation:

A mantle is a layer inside a planetary body bounded below by a core and above by a crust. Mantles are made of rock or ices, and are generally the largest and most massive layer of the planetary body. Mantles are characteristic of planetary bodies that have undergone differentiation by density. All terrestrial planets (including Earth), a number of asteroids, and some planetary moons have mantles.

4 0
3 years ago
Diseases carried from person to person through other hosts, such as animals or insects, are known as __________ diseases.
Basile [38]

The right option is D. vector-borne

Diseases carried from person to person through other hosts, such as animals or insects, are known as vector- borne diseases.

Vector-borne diseases are infectious diseases transmitted between humans or from animals to humans through the bite of infected hosts such as animals or insects. Most of these hosts are arthropod vectors which are bloodsucking insects such as mosquitoes, ticks, triatomine bugs, sandflies, and blackflies. Examples of vector-borne diseases include West Nile fever which is transmitted through the bite of an infected Culex mosquito, Leishmaniasis which is transmitted through the bite of an infected female sandfly and Tick-borne encephalitis (TBE) which is transmitted by ticks.  


7 0
3 years ago
Read 2 more answers
Other questions:
  • A water shed is:
    7·1 answer
  • A key feature of animal body plans is that they can show multiple types of symmetry. For example, a dog would represent bilatera
    5·2 answers
  • What are large molecules made up of smaller molecules called?Untitled<br> Question
    14·1 answer
  • As the days get shorter and the temperature drops, this bear _______________ to get ready for hibernation. A) sheds extra fur B)
    8·2 answers
  • Which best describes how Keisha can improve these instructions to better help her friend find the library
    5·1 answer
  • Which point in this body of water is most likely to be in the aphotic zone ?
    8·1 answer
  • After meeting with their instructor, Pablo and Johanna know that they need to change their experimental design. They contact a l
    9·1 answer
  • 8. How many amino acids occur in the human body?
    12·1 answer
  • Natural selection vs artificial​
    10·1 answer
  • Which plant pigment gets degraded as leaves change color in autumn?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!