Which organs or structures are involved in a gastroenterocolitis?

Which experiment would most likely contain experimental bias

I’m doing some practice exam questions for biology, and i’m not sure how to do these 3 parts to the question.

Type the correct answer in the box. use numerals instead of words. fiona has a lovely flower bed in her yard. she wants to add a fence along one side of the flower bed. the fence material is sold in meters. fiona knows that her flower bed is 200 centimeters in length. how much fencing material does fiona need in meters? fiona needs meters of fencing material for her flower bed.