Question

Sponges are generally
A.Hermaphrodite
B.Unisexual
C.Sexually sterile
D.Either B or C

Answer 1

Hint:Sponges are members of Phylum Porifera, They are primitive and marine animals, Their body lacks proper symmetry with pores over the entire body, and are multicellular..

Complete answer:
-Sponges are Hermaphrodite as the sexes are not separated.
-Sponges can reproduce both sexually and asexually, it can reproduce sexually by forming gametes and asexually by the Fragmentation process or by budding and gemmule formation.
-Sponges show internal fertilization and develop indirectly through a larval stage.
-Sponges show cellular organization and they show asymmetrical body symmetry or sometimes radial symmetry is also observed and they are diploblastic animals.
-Sponges do not have any organs and it does not have any digestive, circulatory, or respiratory system.

Option A: Sponges are Hermaphrodite because the male and female gametes are produced by the same sponge. Therefore, this is the correct option.

Option B: In unisexual organisms, the gametes are produced by two different individuals, Therefore, this is the incorrect option.

Option C: Sponges are capable of forming gametes sperm and ova and hence are not sexually sterile, Therefore, this is the incorrect option.

Option(D): Both option (B) and option ( C) are incorrect, Therefore, this is the incorrect option.

Hence, the correct answer is option Option A.

Note:The most distinctive feature of sponges is to show the presence of a canal system where the water enters the body of the sponge through Ostia which are small pores and the water reaches the central cavity known as spongocoel and exits from osculum and this canal system works as the respiratory, digestive and circulatory system of the sponge, choanocytes are special cells present in spongocoel is used to generate water current in the water canal system.