If a one gram sample of water vapor condenses to a liquid and then freezes to a solid how much total energy will have been released?

Building glycogen from glucose molecules is an example of what

Is there any species that went extinct in recent years due to natural causes (not caused by human interaction). if so, what caused it?

Homo heidelbergensis was a tall, muscular hunter, who used both tools and weapons. because h. heidelbergensis was not a gatherer/forager, but ate a varied diet including meat and fish, we would expect to see what anatomical changes?