Select the correct answer from each drop-down menu. Sickle cell disease
passed on from parent t offspring. Sickle cell disease is an
v disease. Some carriers of the disease
exhibit increased resistance to malarial parasites. This resistance is a
mutation.

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.

The answer is a. i hope this

Google - what is the first three eras within the phanerozoic eon