The term apomorphy means a specialized or derived character state; plesiomorphy refers to a primitive or ancestral trait. An same as autapomorphy is a derived trait that is unique to one group, while a same as synapomorphy is a derived trait shared by two or more groups.
The most simple answer I can think of would be that improper handling can cause damage to the test subject, which would effect the results, making them unreliable.
Your peripheral nervous system includes the bunch of nerves outside your brain and nerves outside your spinal cord. Your central nervous system includes your actual spinal cord and brain.
One thing you could have done is sat down to breakfast. Your peripheral nervous system sent the information about what you smelled to your brain, and also sent nerves impulses to your brain to bend your legs. Your brain, which is in the central nervous system, can distinguish different smells.
Answer:
Construction of Fish Ladders to provide a mechanism for migrating species to move upstream.
Explanation:
So that way, the fish and other creatures can continue living the way they were.
