Answer:
They are unicellular and the members of the animal kingdom are all multicellular.
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Jellyfish should reproduce sexually if genetic variation is needed in order to survive in the change in environment.
Jellyfish should reproduce sexually if genetic variation is needed by the organism leading to more adaptations to the natural environment. There is no variation between offspring in asexual reproduction.
It involves single parent not two parents so their chances of survival against change of environment while on the other hand, offspring produced from sexual reproduction having variations that leads to higher chance of survival.
Learn more: brainly.com/question/24617249
They basically cut the particular region and specified region of the DNA .... this is mainly used in biotechnology ! so answer is first one !