Mammals, birds, and reptiles all derive from a single common ancestor.
differences a chicken starts as a egg and hatches but a human comes out without an egg. similarities a chicken gives birth the same part of the body that humans do.
Fetus is name given to human embryo after it is recognizable as human embryo .
The embryo of a chicken egg is right below the shell.
Yes
No
The yolk of the egg.
skin
Embryonic, due to the Embryo Embryonic, due to the Embryo
If a human egg (from the female) and a human sperm (from the male) join together, then the egg is fertilised by the sperm and a human embryo is created. This human embryo grows over 9 months into a baby.
The same way that a human embryo or any other mammalian embryo does.
It's already in there as an embryo
Embryo