What is the difference between the concept map and the synoptic chart?

The differences between mind maps and conceptual maps are that mind map has a radial structure and the concept map has a tree structure with many branches and clusters on the map. Mind maps focus on one concept, while the concept map connects multiple concepts or ideas of the map.

martians or other types of aliens represent a unique fear as opposed to zombies. vampires and other types of monsters.   in most sci-fi stories, aliens come from other worlds and have different or more advanced technology.   abductions and experimentation on human bodies that involve these technologies, or the use of these technologies against human beings and the use of unknown "powers", are a type of fear that's different from that of other types of monsters.  

i think the best answer would be d allowing 30 seconds between response would give time for what was already said to sink down in your mind.