Chapter 21, Problem 32A

Summary Introduction

Introduction :

Vascular seed plants produce seeds. Each seed contains a tiny sporophyte surrounded by a protective tissue. Plants whose seeds are part of fruits are called angiosperms and those plants that do not bear fruits are called gymnosperms.

Answer to Problem 32A

Correct answer :

The correct answer is option (C) limits competition with parents and offsprings.

Explanation of Solution

Explanation/justification for the correct answer :

Option (C) limits competition with parents and offsprings. The process by which seeds are scattered away from the mother plant is known as seed dispersal. Seeds have a variety of adaptations for the dispersal of seeds throughout their environment. They can be dispersed by wind, water, or animals. Dispersal is important as it limits the competition between the new plant and the parent or offspring. So, the correct answer is option (C).

Explanation for incorrect answer :

Option (A) ensures more favorable environment for growth. Most seed plants do not require water for reproduction. This adaptation enables seed plants to thrive in different environments, including areas where water is scarce. So, this is an incorrect option.

Option (C) creates greater biodiversity. Biodiversity is the variety of life in an area that is determined by the number of different species in that area. Seed dispersal may aid in conserving biodiversity of a region. However, the most important reason for seed dispersal is that it reduces the competition among parents or offspring. So, this is an incorrect answer.

Option (D) provides greater resources. Dispersal is important as it limits the competition between the new plant and the parent or offspring. So, this is an incorrect answer.