I’m pretty sure it’s A it’s been awhile
Answer:
1) bryophyte are also called amphibians of plants kingdom
2) presence of jacketed sex organ
3) they are thalloid
4) vascular tissue are absent
5) sexual reproduction is Oogamous
Answer : A - carboxyl group.
The carbon in the carboxyl group is bonded to a hydroxyl group and also it is double bonded to an oxygen group.
The carboxyl group when it is dissolved in a solution donates it's hydrogen ion(H+ ion). When it is dissolved in water, the carboxyl group loses its H+ ion to form negatively charged ion.
RCOOH + H2O⇄RCOO- + H3O+
Thus the carboxyl group act as an acid when dissolved in water.
