what is the structure labeled with the question mark?
a. motor neuron with synaptic terminal
b. synaptic vesicle with neurotransmitter
c. receptor protein with action potential
d. motor end plate with deactivation enzyme

Ans.

The given diagram represent chemical synapse, which is defined as biological junction between two neurons and is responsible for the exchange of neural signals. The structure labeled with question mark is synaptic vesicle. The synaptic vesicles are small sac like structures that contain neurotransmitters. These neurotransmitters are released by these vesicles through expcytosis and bind to receptors present in another neuron.

Thus, the correct answer is option b). synaptic vesicle with neurotransmitter.'

i think it's they require warm air

explanation:

tornados usually happen when it's raining right so when it's raining it cools down so if the temperature keeps changing then i think a tornado occurs sorry if it's wrong

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.