Question

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8
EXERCISES
1. Discuss how classification systems have undergone several changes over a
period of time?
2. State two economically important uses of:
(a) heterotrophic bacteria
(b) archaebacteria​

Answer 1

Answer:

1) The classification systems have undergone several changes with time. The first attempt of classification was made by Aristotle. He classified plants as herbs, shrubs, and trees. Animals, on the other hand, were classified on the basis of presence or absence of red blood cells.

2) State two economically important uses of: (a) Heterotrophic bacteria (b) Archaebacteria. (1) Many bacteria like Lactobacillus helps in the production of curd from milk. (2) They act as decomposers and help in the formation of humus e.g. Pseudomonas.

I hope it will be helpful to you friend

Answer 2

Answer:

1.the classification system have undergone several changes the time first attempt of classification made of Aristotle.