Usman

Tag: category-107

  • Mosses and liverworts are grouped as:

    {“lesson_id”:0,”category_id”:107,”topic”:”04. Mosses And Liverworts”,”choices”:[“Bryophytes (non-vascular land plants)”,”Angiosperms”,”Fungi”,”Gymnosperms”],”correct”:0,”type”:”mcq”,”explain”:”Bryophytes lack true xylem/phloem and have a dominant gametophyte.”}

  • The green cushion of a moss is mostly:

    {“lesson_id”:0,”category_id”:107,”topic”:”04. Mosses And Liverworts”,”choices”:[“Fruit wall”,”Secondary xylem”,”Diploid sporophyte wood”,”Haploid gametophyte”],”correct”:3,”type”:”mcq”,”explain”:”The familiar leafy moss is the gametophyte; the stalked capsule is the sporophyte.”}

  • Bryophytes absorb water mainly:

    {“lesson_id”:0,”category_id”:107,”topic”:”04. Mosses And Liverworts”,”choices”:[“Through vessels like trees”,”Through deep tap roots”,”Only through flowers”,”Over the body surface (they have rhizoids, not true roots)”],”correct”:3,”type”:”mcq”,”explain”:”Rhizoids anchor but do little true vascular uptake.”}

  • Moss sperm typically reach the egg by:

    {“lesson_id”:0,”category_id”:107,”topic”:”04. Mosses And Liverworts”,”choices”:[“Swimming in a film of water”,”Wind only”,”Phloem translocation”,”Insect pollination of a fruit”],”correct”:0,”type”:”mcq”,”explain”:”Free water is required for fertilisation, so mosses thrive in moist habitats.”}

  • The moss capsule produces:

    {“lesson_id”:0,”category_id”:107,”topic”:”04. Mosses And Liverworts”,”choices”:[“Tubers”,”Pollen tubes”,”Seeds”,”Spores”],”correct”:3,”type”:”mcq”,”explain”:”Meiosis in the capsule yields haploid spores.”}

  • Liverworts often have a flattened body called a:

    {“lesson_id”:0,”category_id”:107,”topic”:”04. Mosses And Liverworts”,”choices”:[“Woody stem”,”Thallus”,”Frond with sori”,”Needle leaf”],”correct”:1,”type”:”mcq”,”explain”:”Many liverworts are thalloid; others are leafy.”}

  • Sphagnum moss is ecologically important because it:

    {“lesson_id”:0,”category_id”:107,”topic”:”04. Mosses And Liverworts”,”choices”:[“Forms peat and holds huge amounts of water”,”Builds coral reefs”,”Produces wheat grain”,”Fixes nitrogen in root nodules like legumes”],”correct”:0,”type”:”mcq”,”explain”:”Peatlands store carbon and water and depend on Sphagnum.”}

  • True or false: The dominant generation in mosses is the gametophyte.

    {“lesson_id”:0,”category_id”:107,”topic”:”04. Mosses And Liverworts”,”choices”:[“True”,”False”],”correct”:0,”type”:”true_false”,”explain”:”Unlike ferns and seed plants, bryophytes are gametophyte-dominant.”}