Which feature is shared by both angiosperms and gymnosperms?
Presence of seeds
Presence of fruits
Presence of flowers
Absence of well-differentiated plant body
Seeds are present in both angiosperms and gymnosperms. Seeds are naked in gymnosperms and are covered in angiosperms.
Question 1
A common characteristic feature of plant sieve tube cells and most of mammalian erythrocytes is
(a) absence of mitochondria (b) presence of cell wall
(c) presence of haemoglobin (d) absence of nucleus