Asexual webster dictionary Sex videochat without money
or it may follow conjugation, a sexual phenomenon in which Paramecium of compatible mating types fuse temporarily and exchange genetic material.During conjugation, the micronuclei of each conjugant divide by meiosis and the haploid gametes pass from one cell to the other.When enough food has accumulated at the gullet base, it forms a vacuole in the cytoplasm, which then begins circulating through the cell.
The cell then divides transversally, and each new cell obtains a copy of the micronucleus and the macronucleus.Paramecia live mainly by heterotrophy, feeding on bacteria and other small organisms.A few species are mixotrophs, deriving some nutrients from endosymbiontic algae (chlorella) carried in the cytoplasm of the cell.This low percentage is nevertheless close to the maximum theoretical efficiency that can be achieved by an organism equipped with cilia as short as those of the members of Paramecium.
Paramecia feed on microorganisms like bacteria, algae, and yeasts.
They were probably known to the Dutch pioneer of protozoology, Antonie van Leeuwenhoek, and were clearly described by his contemporary Christiaan Huygens in a letter of 1678.
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