There could be multiple answers to this due to where the hair like fibre is. if it is on a bacteria to aid movement it is called a flagella. if it is attached to a cell, for example in the throat or oviduct, it is called a cilia
Compressed is the first blank and older is the second one
Dogs are related to canis familiaris
The answer is false there were only types the saurischians and the ornithischians.