Https://www.answers.com/Q/A_small_polar_molecule_enters_a_cell_with_help_from_a_membrane_protein._no_additional_energy_was_needed_to_complete_this_process._what_type_of_transport_is_this
The answer is the stratosphere and the the thermosphere ( b)
The answer is Interspecific competition.
"Semi" means "to<span> some extent or degree", and "permeable" means "allowing material to pass through." Combine those two meanings, and you have the definition of semipermeable.
The phrase that explains "semipermeable" is "allows some material to pass </span>through" or "is partially able to allow material to pass through." Hope this helps!
