関連する実験動画

Updated: Jul 12, 2026

Standardizing a Non-Lethal Method for Characterizing the Reproductive Status and Larval Development of Freshwater Mussels (Bivalvia: Unionida)
07:22

Standardizing a Non-Lethal Method for Characterizing the Reproductive Status and Larval Development of Freshwater Mussels (Bivalvia: Unionida)

Published on: October 4, 2019

ロストロコンキア (Rostroconchia): 双弁の軟体動物の新しい種

J Pojeta, B Runnegar, N J Morris

    Science (New York, N.Y.)
    |July 21, 1972
    PubMed
    まとめ

    パレオゾイク期に生息した4つの双バルブ属は,モルルカン新種Rostroconchiaに分類されています. これらの古代の海洋モルスクは,独特の殻の特徴と,他のモルスククラスとの進化的つながりを持っています.

    さらに関連する動画

    A Whole Mount In Situ Hybridization Method for the Gastropod Mollusc Lymnaea stagnalis07:33

    A Whole Mount In Situ Hybridization Method for the Gastropod Mollusc Lymnaea stagnalis

    Published on: March 15, 2016

    A Protocol for Bioinspired Design: A Ground Sampler Based on Sea Urchin Jaws09:10

    A Protocol for Bioinspired Design: A Ground Sampler Based on Sea Urchin Jaws

    Published on: April 24, 2016

    関連する概念動画

    Diversity of Protists III01:27

    Diversity of Protists III

    Rhizaria are a diverse group of unicellular protists characterized by their threadlike cytoplasmic extensions known as pseudopodia. These structures aid in both locomotion and feeding, giving Rhizaria an amoeboid appearance. Their amoeboid morphology once led to taxonomic confusion, but molecular phylogenetics has clarified their evolutionary placement and emphasized their shared use of pseudopodia despite divergent lineages.This clade comprises diverse lineages such as Chlorarachniophyta,...
    Diversity of Protists II01:27

    Diversity of Protists II

    Alveolates are a group of organisms recognized by the presence of alveoli, which are cytoplasmic sacs located beneath the cell membrane. While their function remains uncertain, alveoli may help regulate water balance by controlling how much water enters and leaves the cell. In dinoflagellates, these structures may serve as armor plates. There are three major types of alveolates: ciliates, which move using cilia; dinoflagellates, which use flagella for movement; and apicomplexans, which are...
    Cleavage and Blastulation01:33

    Cleavage and Blastulation

    After a large-single-celled zygote is produced via fertilization, the process of cleavage occurs while zygotes travel through the uterine tube. Cleavage is a mitotic cell division that does not result in growth. With each round of successive cell division, daughter cells get increasingly smaller.
    Other Algae01:19

    Other Algae

    The group Stramenopiles include some phototrophic microorganisms. Members of this group possess flagella covered in numerous short, hairlike extensions, a feature that inspired the group's name, derived from the Latin words for "straw" and "hair." Some of the main categories of Stramenopiles include diatoms, golden algae, and brown algae.Diatoms are unicellular, photosynthetic eukaryotes, with over 200 known genera. They play a key role in the planktonic communities of both marine and...
    Diversity of Protists IV01:27

    Diversity of Protists IV

    Amoebozoa represent a diverse group of terrestrial and aquatic protists that utilize lobe-shaped pseudopodia for locomotion and feeding. This characteristic differentiates them from the Rhizaria, which possess threadlike pseudopodia. The primary classifications within Amoebozoa include gymnamoebas, entamoebas, and the plasmodial and cellular slime molds. Phylogenetic evidence indicates that Amoebozoa diverged from a lineage that ultimately gave rise to fungi and animals.Gymnamoebas and...
    Multipotency and Niche of Bulge Stem Cell01:06

    Multipotency and Niche of Bulge Stem Cell

    A hair follicle or HF is a small part of the skin that produces the hair shaft. Paul Gerson Unna was the first to observe a bulge in the human hair follicle's outer root sheath (ORS). The bulge is present between the sebaceous gland and the arrector pili muscle and is the niche for hair follicle stem cells (HFSCs). The bulge is also a niche for melanocyte stem cells, and their loss results in graying of hair. The HFSCs express Sox9 and Lhx2, which help them maintain stemness and prevent...