GENERAL HISTOLOGY

Detailed explanation-1: -Starfish sexually reproduce through spawning, meaning that sex cells (eggs and sperm) are released into the water and fertilized outside of the body.

Detailed explanation-2: -Most starfish utilize sexual reproduction, where the genetic information of the offspring is a combination of information from both a male and female parent. Starfish reproduce sexually by spawning, where millions of eggs and sperm cells are released from the starfish gonads into the water.

Detailed explanation-3: -Starfish exhibit an asexual mode of reproduction through binary fission and regeneration. Starfish is a bisexual organism and undergoes regeneration as a method for asexual reproduction. In binary fission, the parent organism’s cell divides exactly into two genetically identical daughter cells.

Detailed explanation-4: -Reproduction: Sea stars are broadcast spawners. Males release sperm into the water and females release eggs. The fertilized eggs hatch into a larval form that lives as plankton, sometimes for months, before settling on the sea floor in its adult form.

Detailed explanation-5: -Male and female sea stars release their gametes through gonopores, located on the top (dorsal aspect) of the animal (Figure 2), and fertilization occurs externally in the seawater. Investigators can therefore spawn the animals individually in the lab, collect eggs and sperm, and fertilize en masse.