Chapter 5, Problem 8STP

Summary Introduction

Introduction:

The living components in the environment or the ecosystem are termed as the biotic factors. Examples of the same are plants, animals, fungi, and birds. The non-living components in the environment or the ecosystem are termed as the abiotic factors. Examples of the same are water, air, soil, minerals, and sunlight.

Answer to Problem 8STP

Correct option is, option (C), temperature throughout the year.

Explanation of Solution

Explanation for correct options:

(C), temperature throughout the year. Temperature is the important abiotic limiting factor for coral organisms. These organisms need warm water for horizontal spatial distribution. Hence, option (C) is correct.

Explanation for incorrect options:

(A), annual rainfall. Annual rainfall is the abiotic factor for coral organisms, but it is not the limiting factor. Hence, option (A) is incorrect.

(B), soil chemistry. Coral organisms are not dependent on this abiotic factor. Hence, option (B) is incorrect

(D), zooanthellae in the reef. Zooanthellae live inside coral organisms and are an important biotic factor. Hence, option (D) is incorrect