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
jolli1 [7]
3 years ago
13

Why can water pass through the cell membrane?

Biology
1 answer:
Alla [95]3 years ago
8 0
Water can pass throught the cell membrane because, the cell membrane has little holes in the membrane allowing water to go through

You might be interested in
En una isla oceánica aislada hay una especie de pájaros, la
Zinaida [17]

Answer:

La frecuencia del alelo recesivo s es igual a 0.2 (opción b)

Explanation:

<u>Datos disponibles</u>:

  • Plumaje gris es el fenotipo dominante
  • Plumaje con manchas blancas es el fenotipo recesivo
  • S es el alelo dominante para plumaje gris
  • s es el alelo recesivo para plumaje manchado
  • Variedad manchada representa el 4% de la población.

Si ejemplares con ala manchada y genotipo ss representan el 4% de la población, entonces los restantes 96% corresponden a ejemplares grises homocigotas dominantes SS y heterocigotas Ss. Las frecuencias fenotípicas serán:

  • Plumaje gris (SS + Ss) = 96% = 0.96
  • Plumaje manchado (ss) = 4% = 0.04

De acuerdo al equilibrio de Hardy-Winberg, la suma de las frecuencias alélicas equivale a 1, y la suma de las frecuencias genotípicas también equivale a 1.

  • Frecuencia del alelo dominante = p
  • Frecuencia del alelo recesivo = q
  • Frecuencia de genotipo homocigota dominante = p²
  • Frecuencia de genotipo heterocigota = 2xpxq
  • Frecuencia del genotipo homocigota recesivo = q²

Entonces,

  • p + q = 1
  • p² + 2pq + q² = 1

Si la frecuencia genotípica del homocigota recesivo es 0.04, entonces la raíz cuadrada de ese valor es la frecuencia génica del alelo recesivo. Esto es:

  • q² = 0.04
  • q = √0.04 = 0.2

A partir de la ecuación p + q = 1, podemos calcular el valor de p.

p + q = 1

p + 0.2 = 1

p = 1 - 0.2

p = 0.8

Entonces la frecuencia genotípica del homocigota dominante es p²

p² = 0.8² = 0.64

Y la frecuencia genotípica del heterocigota es

2pq = 2 x p x q = 2 x 0.8 x 0.2 = 0.32

Para corroborar esto, la suma de todas las frecuencias genotípicas debe dar uno.

0.64 + 0.32 + 0.04 = 1

5 0
3 years ago
All living things have four basic needs to live and function. List these four needs.
igor_vitrenko [27]
1. food
2. water
3. shelter
4. waste extermination
6 0
3 years ago
Read 3 more answers
All of the page please !!!
bazaltina [42]

Answer:

(a) Allow movement in only one plane/direction (that is extension or flexion)

(b) The skeletal system also produces blood cells in their bone marrow

6 0
4 years ago
Read 2 more answers
What are some method scientist have discovered that can stop the virus from spreading in a toast choose all that apply
jarptica [38.1K]

Answer:

The coronavirus speads mainly from person to person. This can happen between people who are in close contact with one another. Droplets that are produced when a infected person coughs or sneezes may land in the mouths or noses of people who are nearby, or possibly be inhaled into their lungs

6 0
3 years ago
How do I do Punnett squares
Elena L [17]
Make each column an allele for one parent, and make each row an allele for the other parent. Then you "multiply" each letter for the alleles into the resulting boxes. Each combination represents a possible result for the offspring. 
 
Hope that helps.
8 0
4 years ago
Other questions:
  • Roman is using a bar magnet in an experiment to determine how its magnetic field lines look. He accidently drops the magnet, bre
    14·1 answer
  • PLZ HELP FAST<br><br> Which factor can decrease the kinetic energy of an object?<br><br> THX
    12·1 answer
  • How is hair produced and how does it grow
    11·1 answer
  • How will the fetus body temperature be regulated after birth??? Plz helppp
    15·2 answers
  • Climates are defined by temperature and precipitation. True or false?
    12·2 answers
  • Why is air called a solution ?
    11·1 answer
  • I'm on question 2 I don't get it
    14·1 answer
  • Which tools do meteorologists use to collect data about the weather? Check all that apply. satellites weather fronts maps and ch
    10·2 answers
  • Adam's wife is concerned about his recent behavior. He wanders from room to room in their home and often has difficulty finding
    14·1 answer
  • As you carry out the steps below, record notes in
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!