Answer:
1. vi. Preganglionic
2. vii. adrenergic
3. ii. sympathetic chain ganglia
4. iii. Craniosacral
5. viii. splanchnic
Explanation:
Action potential travel down preganglionic nerve fibre. They travel towards Vagus Nerve near the effector organ. These impulses arrive at cardiac plexus, which create action potential in postganlianic.
The answer is D, The structure was probably functional in some ancestor of the modern organism. Vestigial structures are structures that have remained from ancestors but have no function in modern times.
(Please mark brainliest if this helped you!)
Answer:
An explosion of a star= Supernova
The dense remains of a star= Neutron star
A large mass of gas and dust= Nebula
Explanation:
Umm can you be a tad bit more specific?
I believe it is called the cardiac muscle.
