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  • Fatima Ahmed
    Fatima Ahmed: HI Jubayer, thanks for continuing to participate in our projects. We read your 'Just in Time' essay write up and it was carefully planned and written with a good flow of information and evidence. Nicely written that built up the case in your story. ...  more
    • January 4, 2022
  • Jubayer Rahman
    Jubayer Rahman joined the group Coolinventor Contributors
    • November 22, 2021
  • Jubayer Rahman
    Jubayer Rahman commented on Fatima Ahmed's classified listing.
    The Journey of the Ladybug - $7 Science Quiz
    • November 10, 2021
    • Digbijoy Azad likes this.
    • Jubayer Rahman
      Tanveer Tausif Ratul To live in a closed eco-system,an animal/plant must need air & foods.While putting the ladybug in the container,some air entered into the container and was trapped inside.
      That air obviously contained some oxygen and CO2.Plants
      need CO2 to live.They...  more
      • November 14, 2021
    • Jubayer Rahman
      Zarin sadaf snigdha Before we answer this question we need to get enlightened on a biological term, symbiosis. Symbiosis means interaction between two dissimilar organism where both benefit from being with each other. When we are putting the ladybug and the plants inside...  more
      • November 14, 2021
    • Jubayer Rahman
      sadia islam safa In that container,an small ecosystem was created. Plants produce their own oxygen during photosynthesis and by using that, bug is still alive. Bugs breath through openings in the thorax and abdomen called spiracles. For plants,those gravels will hold...  more
      • November 14, 2021
    • Jubayer Rahman
      Shadman Chowdhury The ladybug and plants inside the closed container can still survive because of photosynthesis. Plants have a process called photosynthesis which requires CO2 and sunlight to produce carbohydrates, water and oxygen for the plants' growth. Those plants...  more
      • November 14, 2021
    • Jubayer Rahman
      Digbijoy Azad The ladybug is living in an ecosphere. However, the ladybug is not alone. Bacteria, protozoa, algae, smaller worms, and plants are also crucial members of the jar.
      Few things ladybug needs to live-
      -Oxygen.
      -Food...  more
      • November 14, 2021
  • Jubayer Rahman
    Jubayer Rahman is now friends with Fatima Ahmed.
    • November 1, 2021
  • Fatima Ahmed
    Fatima Ahmed: Hi Jubayer, can you please accept my friend request? Can't message you.
    • October 31, 2021
    • - edited
  • Fatima Ahmed
    Fatima Ahmed: Thanks to Jubayer for submitting his first English writing in our site on dolphins and drones. His writing captured the main concept of our project: echolocation. This was his first time writing in our site and he did pretty well. Keep up the good work!...  more
    • October 30, 2021
  • Jubayer Rahman
    Jubayer Rahman has just signed up. Say hello!