Which statement best describes a scientific question? it must be based on a hypothesis. it must be supported by data. it must be testable. it must be original

What have we learned from fossil evidence about evolution? a) it is an abrupt change. b)the process is observable. c) it takes place during one lifetime only. d)the most complex traits are always selected.

Idont understand by supporting the plant and holding the leaves up to the light. question 3 options: tap or fibrous root flower petals herbaceous or wood stems leaves with stomata

Draw the structure of dna nucleotide with adenine as nitrogenous base