The baby is used to getting what it needs through the placenta, which includes oxygen. The baby's lungs are initially filled with amniotic fluid.
Answer: The answer is b.
Explanation: The flowers are one of the most differentiating features of angiosperms. They are the reproductive structures of angiosperms. The flower has a thalamus that is a short axis and four whorls of sporophylls arranged on the thalamus. The four whorls of floral leaves include calyx, corolla, androecium and gymnocium.
It is B. Because you cannot give internal fertilization/ live birth inside.