EVERYDAY SCIENCE

SCIENCE

ZOOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which type of asexual reproduction is common in planarians and sea anemones?
A
Budding
B
Gemmules
C
Fragmentation
D
Parthenogenesis
E
Fission with regeneration
Explanation: 

Detailed explanation-1: -Budding is an asexual form of reproduction found in both multicellular and unicellular species. Some animal species like bacteria, yeast, corals, flatworms, jellyfish, and sea anemones reproduce through budding.

Detailed explanation-2: -Planaria reproduces by fragmentation. Reproduction by fragmentation requires regeneration.

Detailed explanation-3: -Most sea anemones reproduce through fragmentation via a variety of methods including longitudinal fission, where the original anemone splits across the middle forming two equal-sized anemones, and basal laceration, in which small parts of the animal split from the base to form new anemones.

Detailed explanation-4: -Planaria: Asexual planarians reproduce by cutting themselves into two pieces through a process called binary fission. The resulting head and tail pieces regenerate within a week, forming two new worms. Regeneration is the type of asexual reproduction.

Detailed explanation-5: -Longitudinal fission and pedal laceration are the most common asexual reproductive modes employed by sea anemones. In longitudinal fission, the sea anemone stretches transversely to generate two fragments of similar size.

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