What must always happen before a hypothesis is formed?

Adding more tributaries to a local river basin can have what effect?

Brian has a medical condition called cone dystrophy, which is a disorder of the cone cells in the eye. what symptoms would you expect brian to have? a. inability to see in the dark b. difficulty determining colors c. difficulty determining shapes and outlines d. inability to see in all light conditions

Fungi exist as single cells or as branching networks of multicellular filaments. how does the structure of filaments relate to their function