A microorganism or microbe is a microscopic organism, which may be single-celled or a cluster of cells.

The possible existence of unseen microbial life was suspected from ancient times, such as in Jain scriptures from 6th century BC India, and the 1st century BC book "On Agriculture" by Marcus Terentius Varro. Microbiology, the scientific study of microorganisms, began with their observation under the microscope in the 1670s by Antonie van Leeuwenhoek. In the 1850s, Louis Pasteur found that microorganisms caused food spoilage, debunking the theory of spontaneous generation. In the 1880s Robert Koch discovered that microorganisms caused the diseases tuberculosis, cholera, and anthrax.

Microorganisms include all unicellular organisms, and so are extremely diverse. Of the three domains of life identified by Carl Woese, all of the Archaea, and Bacteria are microorganisms. These were previously grouped together in the two domain system as Prokaryotes, the other being the eukaryotes. The third domain Eukaryota includes all multicellular organisms, and many unicellular protists and protozoans. Some protists are related to animals and some to green plants. Many of the multicellular organisms are microscopic, namely micro-animals, some fungi and some algae, but these are not discussed here.

They live in almost every habitat from the poles to the equator, deserts, geysers, rocks, and the deep sea. Some are adapted to extremes such as very hot or very cold conditions, others to high pressure and a few such as "Deinococcus radiodurans" to high radiation environments. Microorganisms also make up the microbiota found in and on all multicellular organisms. What are the answers to this following set of questions: 1. What organisms do microorganisms include?
2. Since when has invisible microbial life been suspected?
3. What scripture mentioned them?
4. From when?
5. Where?
6. What other old book?
7. When was that written?
8. Who was the author?
9. Where do microorganisms live?
10. From where to where?
11. Can they live in extremely hot places?
12. How about extremely cold places?
13. What microorganism can live in high radiation places?
14. Who figured out that microorganisms caused food to rot?
15. What was previously believed to cause food to rot?
16. Is Anthrax caused by microorganisms?
17. Who figured that out?
18. Is tuberculosis also caused the same way?
19. Who started looking at microorganisms under a microscope?
20. When?
Answer: 1. ingle-celled or a cluster of cells.
2. from ancient times
3. Jain scriptures
4. 6th century BC
5. India
6. On Agriculture
7. 1st century BC
8. Marcus Terentius Varro
9. almost every habitat
10. poles to the equator, deserts, geysers, rocks, and the deep sea
11. Some can.
12. Some can.
13. Deinococcus radiodurans
14. Louis Pasteur
15. spontaneous generation
16. yes
17. Robert Koch
18. Yes
19. Antonie van Leeuwenhoek
20. 1670s

Problem: (CNN) -- Marc Marquez announced himself as motorcycling's bright new hope when he became the youngest rider to win a top-level race in Sunday's inaugural Grand Prix of the Americas in Texas.

The 20-year-old had been the youngest pole sitter when he topped Saturday's qualifying, and he followed that up by heading off Honda Repsol teammate Dani Pedrosa in the second event of the new MotoGP season.

World champion Jorge Lorenzo, who won the opening race in Qatar, came home third for Yamaha to be tied on points with his young compatriot at the top of the standings ahead of their home Spanish Grand Prix next month.

"To be third in my first race in Qatar was a dream and now, to take the victory in the second race -- that's even better!" said Marquez, who won the Moto2 championship last year.

"The race was quite hard, especially in terms of physical condition towards the end. I had some problems with the front that I hadn't had in practice, but even with that I was able to push and keep up a constant rhythm -- not so fast, but enough.

"So I'm very happy with that and I want to say thanks to all of my team. Without them this would not have been possible."

Britain's Cal Crutchlow was fourth on a Monster Tech 3 Yamaha ahead of Germany's Stefan Bradl and Italy's seven-time world champion Valentino Rossi -- back at Yamaha after two disappointing years with Ducati.

Rossi's replacement at Ducati, Andrea Dovizioso, was seventh ahead of Spain's Alvaro Bautista, veteran American Nicky Hayden and another Italian, Andrea Iannone.
1. How old is Marc Marquez?
2. How does he compare to the other pole sitters?
3. Who is his teammate?
4. What team are they on?
5. What is he the youngest to win in Sunda's race?
6. What was the name of the event on Sunday?
7. Was it the first one?
8. Where was it?
9. Who was the winner in the first race of the season?
10. Where was that?
11. Did he do well last year?
12. How'd he finish the season?
13. Where did he place in Texas?
14. Does he feel like it's been easY?
15. Who did he thank?
16. What race is next month?
17. Who was fourth?
18. Where is he from?
19. How many championships has Valentino Rossi won?
20. Where is he from?
Answer: 1. 20
2. he's younger
3. Dani Pedrosa
4. Honda Repsol
5. a top level race
6. Grand Prix of the Americas
7. yes
8. Texas
9. Jorge Lorenzo
10. Qatar
11. yes
12. as World champion
13. third
14. no
15. his team
16. Spanish Grand Prix
17. Cal Crutchlow
18. Britain
19. seven
20. Italy

question: Kelsey's uncle Jack gave him and his brother, Davy, some chalk to play with. Kelsey was a pretty good artist. His family said that all of his drawings looked real. His brother was sad that he was not as good at art and drawing as Kelsey. Davy teased Kelsey to take his mind off the fact that he was not as good at art. He called Kelsey names and pretended to be a monster to scare Kelsey when he wasn't paying attention. When their mother gave them some chocolate as a treat, Davy took all of it and wouldn't let Kelsey have any. Uncle Jack finally saw that Davy was hurting his brother, so he sat down to talk to him. After lots of questioning, Davy told his uncle the truth. "Instead of teasing your brother," Uncle Jack said, "why don't you ask him to teach you how to draw some things? He's used to his big brother knowing everything. I think he would like to teach you some things." Davy looked at the ground and finally said, "Okay." Kelsey was pleased that his brother asked him to teach him. After that, both boys got along much better.
1. what did Jack give Kelsey?
2. was Kelsey an artist?
****
answer:
1. Chalk
2. Yes