Chapter 1, Problem 5A

Summary Introduction

Introduction:

In the process of evolution, an organism is adapted to its habitat or habitats and is able to live, grow and reproduce. In due course, the organism incorporates and adapts itself towards any changes in its environment for better suitability and growth.

Answer to Problem 5A

Correct answer :

The correct answer is option (C) Inherited changes in response to environmental factors.

Explanation of Solution

Explanation/justification for the correct answer :

Option (C). So, the correct answer is option (C). Adaptation is described as the ability of organisms to include certain changes which allows it to better survive, grow and reproduce successfully. These characteristics are passed down from generation to generation as inheritable changes.

Explanation for incorrect answer :

Option (A). Reproducing as a species. Reproduction is a fundamental biological feature of any organisms. It is a processes by which new individual, offspring, as produced from their parents. So, this is an incorrect answer.

Option (B). A short-term change in behavior in response to an environmental stimuli. The environment does not remain constant and regularly changes, which may be short termed or for a longer duration. As a result, the individuals of a species face these changes in a negative or positive way. In case of any short-term changes, species incorporate these changes however it doesn’t gets passed onto next generation. So, this is an incorrect answer.

Option (D). Change in size as an organism grows. When an organisms changes its size, that is increases its size, it is termed as growth. Growth is a fundamental biological process where an organisms grow and eventually die. So, this is an incorrect answer.