Is the majority of the fungal mass haploid or diploid explain?
Why are sponges the outgroup of the animal kingdom?
Ans . In the majority of Fungi, all the structures are haploid except the zygote. Nuclear fusion takes place at the time of zygote formation, and meiosis follows immediately. Only in Allomyces and a few related genera and in some yeasts is alternation of a haploid thallus with a diploid thallus definitely known.
Most fungi spend most of their life cycle in the haploid state. They form diploid cells only during sexual reproduction.
In the life cycle of a sexually reproducing fungus, a haploid phase alternates with a diploid phase.
Sponges are similar to other animals in that they are multicellular, lack cell walls etc. Unlike other animals , they lack true tissues and organs, and have no body symmetry.
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