Selina Concise Class 9 Biology Solution Chapter No. 1- ‘Introduction Biology’ For ICSE Board Students.
Exercise Solution
A.) Solution:
1.)
a) Correct Answer: (iv) Fossils
Explanation: The Palaeontology term is defined as the study of prehistoric forms of life through fossils of animals and plants. So, the correct option is ‘Fossils’.
b) Correct answer: (i) Genetics
Explanation: The biotechnology field uses the microorganisms or living cells in the technology and industry.
B.) Solution:
1.) a) Answer: Biotechnology
1.) b) Answer: Horticulture
1.) c) Answer: Paleontology
1.) d) Answer: Immunology
1.) e) Answer: Ichthyology
2.) Solution:
a) Bioengineering deals with making artificial Joints and limbs.
b) Genome is the entire DNA sequence of an organ.
c) Silk is produced by rearing
d) Evolution deals with the study ofDescentand origin of organisms.
e) Organisms which draw food from the host body are called
f) Animals which give birth to young ones are known as
g) Hippocrates is called the father of Medicine.
3.) Solution:
Column A |
Column B (Answers) |
Ichthyology |
Fishes |
Ornithology |
Birds |
Ecology |
Environment |
Virology |
Viruses |
Herpetology |
Snakes |
Palaeontology |
Fossils |
Cytology |
Cells |
Pathology |
Diseases |
4.) Solution:
Answer:
The Biotechnology and Bioinformatics are the two sciences that are connected to Biology.
5.) Solution:
Answer:
The branch of biology that deals with the:
Study of insects is Entomology
Study of birds is Ornithology
Study of Heredity is Genetics
Study of Fungi is Myology
6.) Solution:
Answer:
The biology is scientific term that deals with living organisms and life. The following are the professions that requires a basic knowledge of Biology other than medicine are:
- Entomologist
- Bacteriologist
- Pathologist
- Microbiologist
- Biotechnologist
- genetic engineer
- Teacher
C.) Solution:
1.)
Answer:
Biology term is defined as the study of all living beings which includes animals, plants and also humans and it is a branch of science too. The biology word is taken from Greek where ‘bios’ meaning is life and ‘logos’ meaning is study. In short, biology means science or study of life. It is divided into three branches that are:
Botany which means the study of plants
Zoology which means the study of animals
Human biology which means the study of living organism human and its relationship with other organisms.
2.)
Answer:
Biology is the study of living things. Biology helps us is many ways and also helps us in leading or living healthier life. To understand the basic unity of all living things in their essential features, biology helps us. This branch of science helps us to understand the causes of disease and helps in self analyzing.This helps us to live healthy life. The biology helps us to realize the dangers of cutting down forests and killing of wild animals. It has increased our knowledge of disease in animals and plants. How to take care of animals and plants is introduced by biology.
These will help us to produce more food in fields, poultry farms and dairies.Biology helps us in solving issues like water supply and public health.
3.)
Answer:
Both the farmers and housewives never studied biology, but still they know some of biology through experience. The farmers have knowledge of crop production which includes science. He knows everything from selecting seed to sow, crop plantation, which fertilizers should be essential, crop harvesting, crop breeding and weed removal etc, and basic biology of farming. In the same way housewives knows about foods like grains, vegetables, fruits etc. Housewives have knowledge of required beneficial nutrition and able to suggest home remedies from cold, cough etc. They also have idea about growth of plants.
4.)
1)
Zoology |
Entomology |
This study includes animals |
This study includes insects |
It is classified into mammalogy, ornithology etc. |
It is classified into Hemipterology, Dipterology etc. |
2.)
Genetics |
Eugenics |
Genetics refers to the science of body characters transmission from parents to offspring. |
Eugenics is the science that aims to control heredity to improve human race. |
3.)
Phycology |
Mycology |
It is the study of algae. |
It is the study of fungi. |
4.)
Space Biology |
Exobiology |
This field deals with the study of survival problems or issues of living things in outer space. |
This branch deals with the study of life elsewhere in the universe. |
5.)
Biotechnology |
Bioinformatics |
It is the use of microorganisms or living cells in the technology and industry. |
It is the analysis and management biological data stored in the databases. |
6.)
Embryology |
Immunology |
It is the study of embryo of plants and animals. |
It is the science that study of process and causes of immunity. |
7.)
Ichthyology |
Pisciculture |
This includes the study of fish. |
This is the technique of growing fish. |
D.) Solution:
Yes, the biology can help in increasing the yield of food. It helps in growing of foods like plants, new breeds of cattle, poultry etc. The biology has also increased our knowledge of diseases of animals and plants. This will help in the yield of food. Knowing various diseases of plants and animals will help to cure them and it will help us to take required preventive measure to keep plants and animals healthy. The biology helps us in the crop production and it makes us understand how much time the plant will take to grow. Biology also helps in the diagnosis of various diseases and treatment of plants and animals.
It helps to recognize plants and required plants to keep humans healthy. Biology helps in the production of dairy products and poultry farming. By this way biology helps to increase yield of food items.