Answer:
The structure of plant roots, stems, and leaves facilitates the transport of water, nutrients, and photosynthates throughout the plant.
Explanation:
I would say A) Coevolution because the two species would evolve in response to one another. Flowers and their pollinators must evolve together. For example, if the flower has a mutation that no longer attracts the bumblebees, it will not reproduce. Then the hummingbird would have to find a new food source.
The most appropriate answer is A !!
There are a few vital characteristics to mention here. First we have to know about which ions we're talking about as the cellular membrane is semi-permeable (lets some flow freely through the membrane and some not), it depends on the size of the compounds, and also the charge that a molecule has.
They build more houses and more factories to produce more goods for the population also including more vehicles for more income of people buying them. Stores and etc.
