Yes, they change a lot.
They develop from a simple state to complex states.
all animals grow throughout their entire life time. which is why when you get a puppy or small animal, it can grow into very large dog or cat
The nose is the organ which continues to grow throughout life
No your friends may change throughout your life as you grow apart later. Keeping the same one forever is rare
they grow throughout their whole life
they grow
it depends on the lizard
cuz u grow
yes
When horses are foals they have long legs and short tails. As they grow older they loose that gangly look and their tails get longer and bushier. Also, horses teeth are constantly changing throughout it's life.
rats teeth grow constantly throughout their life, they wear them down when they eat or grind their teeth.
No. You are born with them and they stay with you throughout your life. That is why they are called birth marks.