During embryonic development, which structure temporarily takes on the function of the lungs?

Imagine that certain laws of physics could be ignored and you were able to travel vast distances in moments. now imagine that you traveled to an earth-like planet located light-years away that is known to support life. think about what you’ve learned in this unit and make an argument for what you think would be the dominant type of life form on this planet. consider whether a notochord is required for an organism to manipulate its environment and become a dominant creature.

Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this

Draw a simple labelled diagram if a collenchyma tissue