Tag: category-108

{“lesson_id”:0,”category_id”:108,”topic”:”05. Algae”,”choices”:[“Animals with bones”,”Viruses”,”Aquatic photosynthetic organisms, often without true roots, stems or leaves”,”Woody land trees”],”correct”:2,”type”:”mcq”,”explain”:”They range from microscopic phytoplankton to large seaweeds.”}

{“lesson_id”:0,”category_id”:108,”topic”:”05. Algae”,”choices”:[“Chitin cell walls”,”Haemoglobin”,”Chlorophyll a and b and starch storage”,”Feathers”],”correct”:2,”type”:”mcq”,”explain”:”Charophytes are the closest algal relatives of land plants.”}

{“lesson_id”:0,”category_id”:108,”topic”:”05. Algae”,”choices”:[“Mosses”,”Fungi”,”Angiosperms”,”Phaeophytes with fucoxanthin”],”correct”:3,”type”:”mcq”,”explain”:”Brown algae are mostly marine and can form huge underwater forests.”}

{“lesson_id”:0,”category_id”:108,”topic”:”05. Algae”,”choices”:[“Only inside human lungs”,”In marine habitats; some are sources of agar”,”Only on glacier ice as trees”,”Only in deserts”],”correct”:1,”type”:”mcq”,”explain”:”Phycoerythrin lets many live deeper; agar and carrageenan come from red algae.”}

{“lesson_id”:0,”category_id”:108,”topic”:”05. Algae”,”choices”:[“Pollinate conifer cones only”,”Build only granite”,”Produce much of Earth’s oxygen and form the base of aquatic food webs”,”Replace all xylem”],”correct”:2,”type”:”mcq”,”explain”:”Microscopic algae and cyanobacteria drive marine primary production.”}

{“lesson_id”:0,”category_id”:108,”topic”:”05. Algae”,”choices”:[“Anchors the thallus to rock”,”Fixes nitrogen in nodules”,”Produces seeds”,”Absorbs soil minerals like a tap root”],”correct”:0,”type”:”mcq”,”explain”:”Holdfasts attach; they are not equivalent to vascular plant roots.”}

{“lesson_id”:0,”category_id”:108,”topic”:”05. Algae”,”choices”:[“Cellulose wood”,”Bone”,”Keratin”,”Silica (glass-like frustules)”],”correct”:3,”type”:”mcq”,”explain”:”Silica frustules make diatoms important in sediments and as abrasives historically.”}

{“lesson_id”:0,”category_id”:108,”topic”:”05. Algae”,”choices”:[“True”,”False”],”correct”:1,”type”:”true_false”,”explain”:”Algae are a mixed set of lineages; they do not form flowers.”}