D it is. question on parallelism. 3 lists that contain noun phrases anatomy , mechanisms ,and ways.
pronoun their refers to plants and the underlined part says medieval scholar made no attempt to investigate how plants are related to one another.
This is on a negative note "no attempt " hence nor is not required.![:-D]( "Very Happy")
pronoun their refers to plants and the underlined part says medieval scholar made no attempt to investigate how plants are related to one another.
This is on a negative note "no attempt " hence nor is not required.
