If the egg has been fertilized, then it has everything it needs to become a baby bird. But it must be kept warm and turned over occasionally. That's why the mother normally sits on the eggs. If it's kept at the proper temperature, then eventually the baby inside will peck a hole in the shell and wriggle out. If that happens, you will have a marvelous sight to see, but it will be the beginning of a whole new set of problems: You don't have anything that a baby robin can eat, you have no way to feed it, and you can't keep it warm and clean. Sadly, even if you get far enough to see it hatch, it probably won't survive.
They keep structure and make us you know not be sperm (okay not really cuz sf still have muscles but we ain’t like boneless)
The deciduous tooth retained in its place if a patient has not formed a permanent mandibular first bicuspid on the left side is premolar.
<h3>What is Deciduous teeth?</h3>
This is referred to as the first teeth and is also known as the milk teeth which is later replaced by the permanent teeth.
A permanent mandibular first bicuspid on the left side which has not been formed can be replaced with a premolar as it fits the structure.
Read more about Teeth here brainly.com/question/19162355
#SPJ4
The second one is correct