Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other

Which one of the following sets of animals shows a close taxonomic relationship

Which one of the following does not have larvae in its life cycle

Which one of following algae shows haplo-diplontic life cycle ?

A close relationship exist between a species of moth and the plant Yucca, where both species moth and Yucca cannot complete their life cycles without each other. Justify it.

Which one of the following shows the last diploid stage in the life cycle of angiosperms ?

Which one of the following shows the last diploid stage in the life cycle of angiosperms ?

Which one of the following shows the last diploid stage in the life cycle of angiosperms ?

Which one of the following shows the last diploid stage in the life cycle of angiosperms ?

Which one of the following plants keep its stomata open during the night and close during the day?