Answer:
Bisexual flowers:
In order to make a new seed male gamete present in a pollen grain units with the female gamete present in the ovule.
Unisexual flowers:
Unisexual flower can self pollinate where both male and female flowers are present on the same plant. Stigma of the female flower can be pollinated by the pollen of the male flower present on the same plant.
Bacteria and fungi carry out decompostion of plants and animals
Radiation is responsible for the greatest loss of energy.
Well its easy the Bt gene is inserted into one plant cell by using a bacterial plasma.
B) Oxygen may not have been able to accumulate in the atmosphere
