Answer:
Calcium channels.
Explanation:
The arrival of action potential at the presynaptic neuron, cause the opening of Ca+ channels, at the presynpatic neuron membranes. This leads to influx of Ca+ . The latter caused the Acetycholine contained vesicles in the presynaptic neuron to migrate to the tip of the presynaptic neurons, and fused with the neuronal membrane to empty their contents into the synaptic cleft.
I think the EAR is 7.79%
Since EAR = e^0.75 -1
= 7.79%
In your body
as bladder gets urine from liver hence the urine is actually the purified stuff. so if u drink lots of water ur urine is transparent as it is clean
An experiment that is conducted within a controlled environment is known as a controlled experiment, similar to a controlled variable.
Meiosis is important because it ensures that all organisms produced via sexual reproduction contain the correct number of chromosomes.
