What are the important elements in the design of a polynesian charts and what does each show

a)Stick/palm ribs/ coconut fiber which represented the water and oceanic/sea wave patterns

b)Stone/coral pebbles / shells to represent the land.  

Explanation:

Polynesian stick chart is a form of navigational tools used to discover the sparsely distributed island. They predominantly used following elements  

a)Stick/palm ribs/ coconut fiber which represented the water and oceanic/sea wave patterns

b)Stone/coral pebbles / shells to represent the land.  

The combination of these stick and pebble was used to represent the interaction of ocean waves with the island. However, these navigational charts did not represented an exact weather condition.

a researcher conducts an experiment on the secretion of a particular hormone in mice. scientists inject mice with a substance that stimulates the production of the hormone. the scientists then test the levels of hormones produced by the mice. the tool used to measure the hormones consistently detects the levels at 10 points lower than the actual hormone levels in the mice. this tool makes measurements, but the measurements aren't .

explanation:

no u