The cell membrane acts as a barrier between the cell and its environment. which best describes the type of barrier that the cell membrane forms? a. impermeable, like a brick wall.
b. permeable but selective, like a wall with gates.
c. very permeable, like a fishing net.
d. permeable only to water, like a very fine net.

There are two tomato plantlets one of them is kept in an oxygen chamber with a light source and another is kept in sunlight. both of them are watered regularly what will be the observation after two weeks

What properties of a substance determine how that substance will react when combined with other substances?

Which sentences describe the logistic growth model? there are three different phases of the s-shaped curve. at first, growth is exponential because individuals are few and resources are plenty. this growth model occurs in a situation where resources are plenty and individuals are few to consume the resources. population growth decreases as resources become limited. when a population size reaches the carrying capacity of its environment, the population growth slows down or stops completely. the model looks like a j-curve.