What does selectively-permeable mean? Nothing gets through
The cell lets only large substances through
The cell controls what passes in and out of the cell

Bringing dinosaurs back to life may be science fiction, but the ability to recreate more recently extinct organisms—including those wiped out by the action of humans—exists. consider the possibility of scientists bringing back some extinct plants and animals. research the topic of de-extinction, and provide three potential problems that could arise from it.