Nitrogen makes up how much of earths atmosphere subject is sience

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.

Which of the following requires the use of energy and the of transport proteins to move a molecule across a cell membrane?

Which fossil organism in whale evolution do you think was the first to live mostly in water? explain your claim with evidence and reasoning?