Chapter 39.4, Problem 1TYK

Summary Introduction

Introduction:

The word ‘mammals’ is originated from the Latin word ‘mamma’ which means ‘breast’. The characteristic feature of the mammal is that they feed their babies with milk which is produced by the mother’s mammary glands.

The‘placenta’ is the temporary organ that is connected to the wall of the uterus during pregnancy. It provides nutrients and oxygen to the embryo and helps in removing other waste products and carbon dioxide.

Theuterus is a pear-shaped organ that holds and nourishes the growing baby.