Elaters are present in the sporogonium of

Consider the following statements:
$I.$ The liverworts grow usually in moist,shady habitats such as banks of streams,marshy ground,damp soil,bark of trees,and deep in the woods.
$II.$ The leafy members of liverwort have tiny leaf-like appendages in two rows on the stem-like structures.
Choose the correct option.

The sterile jacket cells surrounding the reproductive organs are a characteristic feature of:

The most simple and primitive embryophytes are .....

The aquatic ancestry of bryophytes can be proven by which of the following?

Primitive types of stomata are found in the