Photoperiodism is a plant’s response to which stimulus?

Organum was first developed by religious singers adding another melody directly above the chant and mirroring the chant line. true false

Now for all my fellow anime lovers i have 4 questions: 1. which ship would have been the best ending for inuyasha a) inuyasha x kagome b) sesshomaru x kogome c) koga x kagome d) none 2. what is your ideal ending for fairy tail 3. which show wouldn't you mind watching or rewatching a) ghost hunt b) psycho pass c) inuyahsa d) the wallflower e) pick your own 4. what is the anime show you that you would love to live in for a year?

Need some ! asap i need to figure out 3 major changes in bridges over time and why these changes to adapt to both improvements in technology and changing social links would also alot.