Study

7th Grade Science Unit 7

  •   0%
  •  0     0     0

      Back   Restart
  • What do we call animals that hunt and eat other animals?
    Predators
  • What substance provides nutrients for growing microorganisms in the lab?
    Agar jelly
  • Are all bacteria harmful?
    No, most are harmless and some are helpful
  • What is the singular form of the word "bacteria"?
    Bacterium
  • What do we call animals that eat only plants?
    Herbivores
  • What are the four main types of microorganisms?
    Bacteria, Microscopic fungi, Protozoa, Algae
  • What do consumers eat to get energy?
    Plants or other animals
  • What is the result of decomposers breaking down dead organisms?
    Nutrients are recycled and the ecosystem stays healthy
  • Why is decay important in ecosystems?
    It recycles nutrients and keeps the environment clean
  • Name two types of microorganisms that act as decomposers.
    Bacteria and microscopic fungi
  • What causes an apple to rot and decay?
    Microorganisms, especially mould (fungi)
  • What are producers in a food chain?
    Plants that make their own food using sunlight
  • Give an example of a simple food chain.
    Sun → Plant → Animal → Human
  • What is a colony in terms of microorganisms?
    A group of cells that have multiplied from a single microorganism
  • What do decomposers feed on?
    Dead organisms and animal waste
  • What do we call the study of organisms and their surroundings?
    Ecology
  • What is a food chain?
    A way to show how energy moves from one living thing to another
  • What kind of fungus is yeast?
    A single-celled fungus
  • What is the original source of energy in a food chain?
    The Sun
  • Why aren’t decomposers usually shown in food chains?
    Every organism would have an arrow pointing to them, making it too complicated
  • What are decomposers?
    Organisms that cause decay by feeding on dead matter
  • What do decomposers release back into the soil?
    Nutrients
  • What is a food web?
    A network of connected food chains showing how organisms depend on each other for food
  • What do we call organisms so small they can only be seen with a microscope?
    Microorganisms
  • What is organic matter?
    Anything made by a living organism
  • What do arrows in a food chain represent?
    The direction of energy flow
  • What do yeast feed on?
    Sugar
  • How do decomposers support the entire food chain?
    By returning nutrients to the soil for plants to grow
  • Where can bacteria be found?
    In the air, water, soil, and inside our bodies
  • What dish is commonly used to grow microorganisms in a lab?
    A Petri dish
    • Your experience on this site will be improved by allowing cookies.