Why do a male's body contain more blood than females?

This is because they lost nearly 30 to 50 ml of blood every month during menstruation and some even 80 ml.
And also the metabolism of females is lower than males due to low rbc count in hormones.

Only algae, oak trees, and bermuda grass produce atp by photosynthesis i am almost positive

Neurotransmitters are messengers responsible for communication between neurons. they are released from synaptic vesicles and are received by receptors.  the communication is referred to as neurotransmission. the following statement is true about neurotransmitters: a. they're stored in synaptic vesicles in the axon.