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ohaa [14]
4 years ago
5

What kinds of lipids make up the bilayer that forms a cell membrane ?

Biology
1 answer:
KIM [24]4 years ago
4 0
The answer you are looking for is <span>phospholipid</span>
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Discuss inspiration and expiration
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Expiration is when food goes bad and idk how to help sorry
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3 years ago
Describe the biotic and abiotic features of the tundra and two main types of tundra
dsp73

Answer:

<em>Two main types of Tundra:</em>

  • Arctic tundra is the tundra region which can be found in the northern hemisphere close to the regions of Alaska, Greenland, Siberia.
  • Antarctic tundra is the tundra region found near the Antarctic peninsula.

<em>Biotic factors of Tundra:</em>

Biotic factors can be described as the living components of an ecosystem. The biotic components of the tundra include fungi, mosses, shrubs, insects, fish, birds and mammals.

<em>Abiotic factors of Tundra:</em>

Abiotic factors can be described as the non-living components of an ecosystem. The abiotic components of the tundra include  temperature, wind, rain, snow, sunlight, soil, rocks and permafrost.

3 0
4 years ago
Which state of matter is made up of particles that are held firmly in place?
andrezito [222]

The answer is B, solids are held firmly in place.

5 0
3 years ago
Read 2 more answers
12. Se obtienen 500 mL de CO2 en el laboratorio a una temperatura de 18 °C y una presión de 560 mmHg. El volumen que ocupa a con
vfiekz [6]

Answer:

A. 345,6 mL

Explanation:

Tenemos un gas definido en ciertas condiciones (de presión, temperatura y volumen) y queremos saber el volumen que ocupará en condiciones normales de presión y temperatura, es decir, 1 atm y 0ºC.

Para resolver este problema utilizaremos la ecuación de los gases ideales:

pV=nRT

Ya tenemos todos los datos, y sólo nos resta calcular n, el número de moles. R es la constante de los gases, la cual tiene el valor redondeado de 0.082 L.atm/mol.K, por lo cual es importante convertir las unidades para que éstas se cancelen y den como resultado los moles de gas.

Dividimos 560 en 760 para pasar de mmHg a atm, 500 mL se dividen por 1000mL para pasar a litros, y a la temperatura de 18ºC se le suman 273 para pasarla a Kelvin.

Despejamos n de la ecuación:

n=p.V ÷ R.T

n= 0.740 atm × 0.50 L ÷ 0.082 L.atm/mol.K × 291 K

n= 0.0155 mol

Ahora que tenemos el número de moles del gas, podemos usar la ecuación nuevamente para calcular el volumen que tendrá el gas en condiciones normales (1 atm y 0ºC, o 273 K).

Despejamos V de la ecuación:

V= n.R.T ÷ p

V= 0.0155 mol × 0.082 L.atm/mol.K × 273 K ÷ 1 atm

V= 0.346 L ≈ 346 mL

El volumen que ocupará el mismo gas a condiciones normales será 346 mL, por ende la respuesta correcta es la A. Hay una pequeña discrepancia pero ésta es normal, se debe al redondeo del resultado al final (acá redondeo 345.6 a 346).

4 0
3 years ago
What adaptation allows the Artic fox to survive in its environment?
Hunter-Best [27]

Answer: Arctic foxes have several adaptations that allow them to survive. Their round, compact bodies minimize surface area that is exposed to the cold air. Their muzzle, ears, and legs are short, which also conserves heat.

Explanation:

4 0
3 years ago
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