Answer:
The correct statment would be: "the hormons of the endocrine system exert their action by lock and key mechanism."
Explanation:
The endoncrine system is responsable of the release of hormons under certain conditions, and in different organs, they go trough the bloodstream. The lock and key mechanism is explained as how the receptors block or release hormonos or instead they don´t. The endocrine system is responsable for the reproductive system, and regulates metabolic processes.
Answer:
Hmmm, I'll try to help you bud :3
1.//A// The Commonwealth of Independent States are a free association of states and the countries in the region who r members are Russia, Azerbaijan, Ukraine, Armenia, Belarus, Georgia, Kazakhstan, Kyrgyzstan, Moldova,Tajikistan, Turkmenistan, and Uzbekistan
2. //B// The economies of the region changed since the collapse of the Soviet Union is that it threw economies to have increased/double the amount of crime rates
3.//C// In Eastern Europe, life in the citty has agriculture and livestock which they have a production for grain :3
Explanation:
:3
Answer:e) No. Visual aids should be displayed only while they are being discussed.
Explanation: visual aids should be displayed when it is time to discuss about them otherwise they may tend to be distructive to the audience who may lose focus on your speech and start focusing on the visual aid. They may even try to analyse it in their mind which means you have completely lost their focus on your speech cause now they are trying to figure out this visual aid.
There live without electricity.