CLASSIFICATION OF LIVING THINGS
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Across
Down
2. This term describes an organism which produces its own
food
1. The kingdom of organisms which digest their food outside
their body by releasing enzymes.
7. An organism with a calcified exoskeleton and five pairs of
jointed legs
3. The kingdom of unicellular organisms that include
protozoa and algae
8. Belonging to the genus Homo and the species sapiens
4. A multicellular organism that can produce its own food
from inorganic substances
10. Flowering plants which have one seed leaf and parallel
veins on their leaves
5. A non-flowering plant which reproduces using spores
11. Vertebrates that are cold-blooded and covered with
scales
6. The group of organisms which can interbreed to produce
fertile offspring
12. Unicellular organisms with the ability to photosynthesize
8. Warm-blooded, hairy animals that breastfeed their young
16. Organisms with no backbone
9. Animals with backbones
17. The kingdom of unicellular organisms which facilitate the
release of nutrients from dead tissue
13. Animals which spend part of their lives under water and
part on land
18. A parasitic organism which is unable to live outside a
host cell
14. Animals that have wings and feathers, and produce
eggs
19. Flowering plants which have two seed leaves and a
network of veins
15. The science of classifying living organisms