Chapter 23, Problem 20A

Summary Introduction

Introduction:

Sepals (together referred to as the calyx) are changed leaves that encase the growing flower. They are sterile floral elements and can be both in experienced or leaf like or composed of petal-like tissue. Petals (together referred to as the corolla) are additionally sterile floral elements that are normally characterized as visually conspicuous factors serving to draw unique pollinators to the flower.

Answer to Problem 20A

Correct answer :

The correct answer is option C. twelve sepals, twelve petals.

Explanation of Solution

Explanation/justification for the correct answer :

Option C. twelve sepals, twelve petals. The variety of sepals and petals varies relying on whether or not the plant is a monocot or dicot. In monocots, usually variety of petals is three or multiples of three. So, option C is right answer.

Explanation for incorrect answer :

Option A. four sepals, four petals. In dicots, the variety of petals is four or five, or multiples of four and five. So, this is an incorrect answer.

Option B. five sepals, ten petals.Dicots usually own four or five sepals and four and five petals. So, this is an incorrect answer.

Option D. four sepals, eight petals. In dicots, the variety of petals is four or five, or multiples of four and five. Together, the calyx and corolla are knownbecause of the perianth. So, this is an incorrect answer.