Question

Which of the following following plants is monoecious...1.pinus 2.cycus 3. Papaya 4. Marchantia.

Answer 1

Answer:

Pinus is monoecious plant . Papaya, Marchantia, cycas are dioecious  plants .

Explanation:

because Monoecious describes a single plant that bears both male and female flowers and dioecious describes exactly opposite to it . That is; A dioecious plant is one where the male and female reproductive systems occur on separate plants. While both plants produce flowers, one plant has the male reproductive parts and the other plant has the female parts

note:

Marchantia is a bryophyte.

pinus and cycas are  gymnosperms