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Lemur [1.5K]
3 years ago
13

List the levels of the ecosistem from smallest to largest

Biology
1 answer:
Dmitry_Shevchenko [17]3 years ago
6 0
Individual < population < community < ecosystem < biome < biosphere 


Hopefully this helped  
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In which case would facilitated diffusion be needed?
melomori [17]

Answer:

The voltage-gated potassium channels associated with an action potential provide an example of what type of membrane transport?

A. Simple diffusion.

B.<u> Facilitated diffusion. </u>

C. Coupled transport.

D. Active transport.

You are studying the entry of a small molecule into red blood cells. You determine the rate of movement across the membrane under a variety of conditions and make the following observations:

i. The molecules can move across the membrane in either direction.

ii. The molecules always move down their concentration gradient.

iii. No energy source is required for the molecules to move across the membrane.

iv. As the difference in concentration across the membrane increases, the rate of transport reaches a maximum.

The mechanism used to get this molecule across the membrane is most likely:

A. simple diffusion.

<u>B. facilitated diffusion. </u>

C. active transport.

D. There is not enough information to determine a mechanism.

Carrier proteins - exist in two conformations, altered by high affinity binding of the transported molecule. Moves material in either direction, down concentration gradient (facilitated diffusion). EXAMPLE: GluT1 erythrocyte glucose transporter.

Channel proteins - primarily for ion transport. Form an aqueous pore through the lipid bilayer. May be gated. Moves material in either direction, down concentration gradient (facilitated diffusion). EXAMPLES: Voltage-gated sodium channel, erytrhocyte bicarbonate exchange protein.

This might be helpful... because I don't know anything about facilitated diffusion.

5 0
3 years ago
The Fisher Family There are six people in the Fisher family. Olivia and Marcus are the parents. They have four children, Violet,
MariettaO [177]
Is it 2 adults n 4 kids? lol because thats 6

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Paul had chicken pox when he was 5 years old. nicholas received the chicken pox vaccines. which type of immunity does each man h
GrogVix [38]

Answer:

Paul has natural active immunity, while Nicholas has artificial active immunity.

Explanation:

Natural active immunity is an immunity that occurs when an individual is exposed to a disease causing organism, gets infected, and also become immune to the disease due to the primary immune response. From the question, Paul has natural active immunity because he had chicken pox before, and the virus that causes chicken pox has interacted with his immune response, hence, making him to develop natural immunity to the disease.

Artificial active immunity is an immunity that an individual acquires when small amount of immunity to a disease is deliberately exposed to his body. Artificial active immunity is usually produced in the form of vaccinations. From the question, Nicholas has artificial active immunity because chicken pox vaccines were intentionally introduced to his body.

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1) Among the terrestrial planets
Fittoniya [83]

Answer:

2. along the gas planets

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How do you make something up to the girl you love the most? ;) ;) Srsly :)
Ann [662]
Goodnight and good morning texts (paragraph at least), tell her many times each day how beautiful she is, if you have any good memories of you two together bring up those, be cute, if you have snapchat send her cute selfies, buy her chocolate or flowers.  
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