Amniotic - page 2

What does the porous shell of the amniotic egg allow to happen?
In amniotes that lay eggs, the shell of the egg provides protection for the developing embryo while being permeable enough to allow for the exchange o...
Does an amniotic egg allow for internal fertilization?
The amniotic egg allowed tetrapods to become completely terrestrial. ... Early tetrapod amniotes also evolved internal fertilization, more protective ...
Why is the amniotic egg considred an important evolutionary breakthrough?
Why is the amniotic egg considered an important evolutionary breakthrough because of?Why was the development of the amniotic egg an important adaptat...
How many sacs surround a fetus?
Is the SAC the baby?What are the two membranes that surround the fetus?How much amniotic fluid surrounds babies in the placenta?Why is the fetus surr...