What is the difference between symptoms of a disease and sighns of the disease?

Which of the following compound is produced when ethano (C5H5Oh ) is dehyrated

What is the difference between ovary and ovule culture, what are their advantages and disadvantages

 

What is Glycolessis ? Explain about Glycolessis and what it's part and functions

pls anwernnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn

How is ulna a pivot joint a bone is unbendable so how is ulna a pivot joint