Chapter 30, Problem 19A

Summary Introduction

Introduction:

The mammals are the organism that carry the babies in their wombs and give birth to the young ones. In initial days, the young ones are fed by the milk produced in the mammary glands of these organism.

Answer to Problem 19A

Correct answer:

Option (B).

Explanation of Solution

Explanation/justification for the correct answer:

Option (B) predation of the young ones is less likely. The mammals are generally k strategic animals. They show a lot of parental care. Carrying young ones in the uterus provides the protection to the developing young one a protection from the harsh environment and predation. Hence, the correct answer is option (B).

Explanation for incorrect answer:

Option (A) young ones are born live. The birth of the live young one is not a benefit of carrying the baby in uterus. Hence, it is an incorrect answer.

Option (C) predation of the young more likely. The chances of predation in the uterus as a part of mother’s body reduces, as the mother is able to protect the young ones as they are bog and experienced to escape predation. Hence, it is an incorrect answer.

Option (D) young ones are more fully developed. The development of the young ones varies among the different groups of the mammals. The development of young ones is also variable for organism. Hence, it is an incorrect answer.