Question

Which of the following is a bisexual animal?

• A. Snail
• B. Starfish
• C. Earthworm
• D. All of the above

Answer 1

The correct option is D All of the above

Bisexual animals, also called as hermaphrodites are the organisms having reproductive organs normally associated with both male and female sexes. Many invertebrates and a significantly smaller number of vertebrates are hermaphrodites. Examples of Hermaphrodites are :

Snails:- Most snails are hermaphrodites. The only exceptions include certain freshwater and marine species, such as apple snails and periwinkle snails.

Echinoderms:- Echinoderms are marine invertebrates. They include sea stars, sea cucumbers, sea urchins and sand dollars. Some of the most well-known echinoderms are also hermaphrodites.

Worms:- Another class of invertebrates, worms, adds to the proliferation of hermaphroditism. Some worms can fertilize themselves, but for the most part, worms need a mate to reproduce.

Fishes:- Around 21 families of fish are natural hermaphrodites. These unique hermaphroditic vertebrates include snook, clown fish, wrasse, angelfish, grouper, goby, parrot fish, sea bass, starfish and anthias.