One organic waste that is not found in urine is called Bicarbonate Ions
Answer:Stars are formed in clouds of gas and dust, known as nebulae. Nuclear reactions at the centre (or core) of stars provides enough energy to make them shine brightly for many years. The exact lifetime of a star depends very much on its size.
13. Ear canal
14. Vibrates
15. Auditory ossicles (malleus, incus, stapes)
16. Cochlea
17. Auditory
18. Texture and temperature
19. CNS
Hydrolase
This is because it catalyzes a hydrolysis reaction.
Answer:
The condition of the Earth had to become favourable before it could support any form of life.
The formation of the different layers around the earth like the ozone layer was necessary before life could originate. Primitive species such as some prokaryotes were able to live in hydrothermal conditions during the initial times. With the passage of time, as the concentration of oxygen increased due to photosynthetic prokaryotes, situations became favourable for eukaryotic organisms to arise.