biology grade ix, class 9th English medium chapter 1 short question, long question, mcqs, chapter review, Pdf Download for all kpk boards.
biology Grade ix, class 9 notes unit 1
Q1: Define Biology. Describe various branches of biology.
Ans: Word “Biology”
In 1736 Swedish scientist Carl Linnaeus for the first time used the word biology.
Meaning:
The word biology has been derived from two Greek words.
“Bios” means life or living things.
“logos” means to study, knowledge, or thoughts.
Definition:
Biology is the natural science that deals with the study of living organisms
Main branches of Biology:
There are three main branches of Biology
• Botany: The study of plants.
• Zoology: The study of animals
• Microbiology: The study of microorganisms such as viruses and Bacteria etc.
Other branches of Biology:
i. Morphology (Morph: Form): The branch of biology that deals with the study of
the form and structure of living organisms.
ii. Anatomy (Ana – up – tomia – cutting):
The branch of biology that deals with the study of the internal structure of living organisms is called anatomy.
iii. Histology:
The Microscopic study of animal and plant tissues is called histology.
iv. Physiology (Physic-function):
The branch of biology that deals with the study of the function of different parts of living
organisms is called physiology.
v. Embryology
The branch of biology which deals with the stu
