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lakkis [162]
2 years ago
13

Which substances may pass through a cell membrane by simple diffusion?.

Biology
1 answer:
docker41 [41]2 years ago
6 0

Explanation:

A cell's lipid bilayer allows to small uncharged substances such as: ions, hydrophobic molecules, oxygen and carbone dioxide to travel through the membrane by simple diffusion

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Investiga como se reproducen las células madres​
Damm [24]

Answer:

Las células madre son células que se reproducen constantemente y tienen la capacidad de transformarse en cualquier otro tipo de célula del cuerpo de un organismo. Una célula a partir de la cual pueden crecer todos los tejidos del cuerpo, o una gran parte de ellos, es obviamente una célula extremadamente útil.  

Si las células madre se guían en la formación de tejidos sanos y funcionales, entonces, potencialmente, la terapia celular podría aplicarse para muchas enfermedades. De hecho, si las células provienen del propio paciente, en teoría no habrá riesgo de su rechazo (como lamentablemente ocurre con los trasplantes).

Las células madre tienen la capacidad de reproducirse por sí mismas a través del proceso de mitosis celular, para crear copias idénticas (clones) de sí mismas..

8 0
2 years ago
What are the two types of crust in the lithosphere?
Sonbull [250]

Answer:

Oceanic crust and continental crust

5 0
2 years ago
What is the first step in the process of dna replication
svet-max [94.6K]

Answer:

separate or unzip the two strands of the double helix.

Explanation:

Mark as brainslist. Hope this helps.

5 0
3 years ago
11. When did surfing begin (p.51)?
jarptica [38.1K]
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3 0
3 years ago
According to Darwin’s On the Origin of Species, what four factors affect evolution? Explain how each factor affects evolution.
Kryger [21]

The 4 factors affect evolution, according to Darwin’s Origin of Species are;

Variation

Heritability

Competition

Differential survival

Variation ensures that there is variability of population traits on which selection pressures will apply.

Heritability means that the traits must be able to be passed down to offsprings through gametes.

Competition occurs when the individuals in the population compete for limited resources

Differential survival occurs due to competition for resources and other selection pressures. This result to the survival of the strongest and weeding out of the weak from the population.






4 0
3 years ago
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