What some of the things members have used biohacking for?

What if the yeast were extremely active and produced more than 100ml gas. would you know? why/why not

Which of the following describes a bathypelagic zone

When it is summer at the south pole, a. the northern hemisphere is tilted toward the sun. b. the southern hemisphere is tilted away from the sun. c. the northern hemisphere is tilted away from the sun. d. both the southern and northern hemispheres are tilted toward the sun.