Answer:
All organisms are made up of one or more cells.
A pioneer species is the first species to enter an ecosystem or to go back to an ecosystem that has been destroyed. They begin the ecological formation which eventually leads to the ecosystem prospering with many different biotic and abiotic factors. Note that pioneer species can be plants or animals.
the are modified in the golgi apparatus. they are carried from the rough ER in transport vesicles to the golgi apparatus. There, they are modified and eventually delivered to where they are needed
