Define metameric segmentation.
Metameric segmentation is a type of segmentation where external divisions correspond to internal divisions.
What are hermaphrodites?
The animal that possess both male and female reproductive organ is called hermaphrodite, e.g., earthworm.
Name free living and parasitic flatworms.
Free living: Planaria; Parasitic: Tapeworm and liver fluke.
Which plants are perennial, evergreen and woody?
Gymnosperms.
In which sub-division does xylem possess vessels?
Angiosperms.