Chapter 1
#Classification of Living Things
1. Classification of animals and plants is called taxonomy.
2. Classification can be defined as the process of grouping the things into groups and subgroups.
3. All the living things are divided into five main kingdoms.
4. Five kingdoms are
A. Bacteria
B. Algae
C. Fungi
D. Plants
E. Animals
5. Bacteria are small organism which cannot see with our naked eyes.
6. In older classification, bacteria were considered as plants now they are kept in kingdom monera.
7. Algae are green in color but they do not have roots, stem, leaves, flowers and fruits.
8. In older classification, algae were considered as plants now they are placed in kingdom Protista.
9. Mushroom is type of fungi.
10. Fungi are cotton like fluffy mass.
11. Animals are divided into two large sub groups called vertebrates and invertebrates.
12. Those organisms which have backbone
13. Vertebrates are further divided into five classes.
a. Fishes
b. Amphibians
c. Reptiles
d. Birds
e. Mammals
14. Fishes are vertebrates, respire by gills.
15. Amphibians can live both in water and on land.
16. Amphibian skin is mostly moist and slippery.
17. Frog, toad etc. are examples of amphibians.
18. Reptiles are completely land vertebrates.
19. Reptiles skin is hard and rough and bears scales on it.
20. Examples of reptiles are Lizards, snakes, chameleon, crocodile, turtle, tortoise etc.
21. Forelimbs of birds are modified into wings that are strong and large.
22. Running birds lost their ability of flight as they had no enemy in their environment hence need not to fly.
23. Snakes lost their legs due to their life style of living in burrow, cracks and crevices.
24. Ostrich is the largest bird in the world.
25. Bat is a unique mammal that can fly in air.
26. Those organisms which do not have backbone in their bodies are called invertebrates.
#Continues
