Question

Which of the following terms can be used to describe the condition in which proper identification of male and female individuals is possible due to morphological appearance?

• A. Heterotrophy
• B. Hermaphroditism
• C. Sexual dimorphism
• D. Dioecy

Answer 1

The correct option is C Sexual dimorphism

Sexual dimorphism is the phenomenon in which the male and female individuals of a particular species can be distinguished based on externally visible characteristics or morphology.
Heterotrophy is the ability to produce organic material only from other organic material obtained from plants or animals. In simple words, green plants can synthesize their own food (organic material) from inorganic components (CO${}_2$, H${}_2$O). So, they are known as autotrophs and the phenomenon is known as autotrophy. The animals are not able to do so. So, they are referred to as heterotrophs and the phenomenon is known as heterotrophy.
The condition in which both the male and female reproductive parts are present in a single organism is called hermaphroditism. The organisms are termed hermaphrodites.
The condition in which male and female reproductive organs are present in different organisms is called dioecy. The organisms are known as dioecious.