Q. Poison glands of snakes are homologous to—
- Electric organs of fishes
- Stings of rays
- Sebaceous glands of mammals
- Salivary glands of vertebrates
Answer: Salivary glands of vertebrates.
The glands that secrete the zootoxins are a modification of the parotid salivary gland found in other vertebrates and are usually situated on each side of the head, below and behind the eye, and encapsulated in a muscular sheath. The glands have large alveoli in which the synthesized venom is stored before being conveyed by a duct to the base of channeled or tubular fangs through which it is ejected.
Poison glands of snakes are homologous to salivary glands of vertebrates i.e. the poison glands in snakes are the modified salivary glands.In biology, homology is similarity due to shared ancestry between a pair of structures or genes in different taxa.
The glands that secrete the zootoxins are a modification of the parotid salivary gland found in other vertebrates and are usually situated on each side of the head, below and behind the eye, and encapsulated in a muscular sheath. The glands have large alveoli in which the synthesized venom is stored before being conveyed by a duct to the base of channeled or tubular fangs through which it is ejected.
- Poison glands of snakes are the modification of salivary glands of vertebrates.
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