Option D is correct.
A synapse is the opening between neurons that neurotransmitters pass through.
What type of molecule makes up DNA?
B. Nucleic Acid
Answer:
Trough – the lowest point below the rest position. Amplitude – the maximum displacement of a point of a wave from its rest position.
Answer:
The first line of defence (or outside defence system) includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils.
Explanation:
