There are 4 molecules moving across the membrane in this diagram. How many of them are moving passively?

Development of new communities in disturbed environments, such as a burned or a clear cut forest, is called

Which is the correct order in the scientific process? ask a question ® form a hypothesis ® make an observation ask a question ® make an observation ® form a hypothesis make an observation ® form a hypothesis ® ask a question make an observation ® ask a question ® form a hypothesis

Which label correctly identifies what x represents in the concept map?