The form of reproduction illustrated in the pictures of hydra, based on the description provided, is B asexual. This is indicated by the mention of budding, where new hydra develop as a bud from the parent and are genetically identical to the parents.
Hydra are named after the nine-headed sea snake of Greek mythology and are freshwater relatives of corals, sea anemones and jellyfish. They are members of a primitive phylum, the Cnidaria, and like other members of this phylum, have stinging tentacles and a radially symmetrical body plan. Most species of hydra are less than 0.6 inches in length, not including the tentacles, and are difficult to see. Hydra live attached to vegetation by the base of their tubular body, with their tentacles suspended free in the water. At the base of the tentacles is their mouth. Smaller animals that swim into the tentacles are stung, paralyzed, and eaten. Although hydra remain stationary for long periods, they can move by bending their body, attaching with the tentacles, releasing the basal disc, then flipping their body over and re-attaching. This is called somersaulting. Hydra reproduce in the summer months. Most reproduction is asexual by budding, in which a new hydra develops as a bud from the parent. Buds break free, and are genetically identical to the parents. Under favorable conditions, hydra may possess several buds at various stages of development. In late summer, hydra may reproduce sexually, developing eggs and sperm in different locations on the body. Sperm are released into the water and swim to find a neighboring hydra. Sexual reproduction produces offspring that are different from the parents.
What form of reproduction is illustrated in these pictures of hydra?
Responses
A abioticabiotic
B asexualasexual
C conjugationconjugation
D sexual
1 answer
1 answer