Question : Identify an organism that exhibits metagenesis.
Option 1: Obelia
Option 2: Spongilla
Option 3: Sycon
Option 4: Euspongia
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Correct Answer: Obelia
Solution : The correct option is Obelia.
Obelia is a type of hydrozoan, and its life cycle involves alternating between a sexually reproducing medusa stage and an asexually reproducing polyp stage. Metagenesis is a phenomenon in the life cycle of certain organisms where they undergo the alternation of generations, meaning they switch between different forms or stages in their life cycle. It involves a sexual reproductive stage and an asexual reproductive stage.
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Question : Identify an option that does not represent prokaryotic cells.
Option 1: Mycoplasma
Option 2: Blue-green algae
Option 3: Sperm
Option 4: Pleuropneumonia-like organism
Question : Identify the organism that is not a pseudocoelomate.
Option 1: Ancylostoma
Option 2: Ascaris
Option 3: Wuchereria
Option 4: Scorpions
Question : Identify an example of decomposers that are found in the bottom of a pond.
Option 1: Zooplankton
Option 2: Jellyfishes
Option 3: Flagellates
Option 4: Phytoplankton
Question : Identify an example of organisms that do not belong to the third trophic level.
Option 1: Fishes
Option 2: Wolves
Option 3: Birds
Option 4: Cows
Question : Identify an example of organisms that are free-swimming and bottom-dwelling forms.
Option 1: Phytoplankton
Option 2: Zooplankton
Option 3: Fungi
Option 4: Jellyfishes
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