Short Questions
1.. What is Science?
Ans: “Science is the study in which observations are made, experiments are done and logical
conclusions are drawn in order to understand principles of nature.”
2. Why was the scientific information not classified into different branches?
Ans: In ancient times, the scientific information was not classified into different branches, as it
exists today. All the scientific information was included under one head i.e'science'.
Reason:
With the passage of time scientific information increased many folds and this enormous
scientific knowledge was then classified into different branches like:
Biology
Physics
Chemistry
Mathematics
3. What are the thoughts of Dr. Abdus Salam about science?
Ans: According to Dr. Abdus Salam
“Scientific Knowledge is common heritage of mankind.”
4. Define Biology and write also its meaning and derivation?
Ans: The word "biology" has been derived from two Greek words.'bios' meaning 'life' 'logos' meaning 'thought or reasoning' “The scientific study of life is called Biology."
5. What is the benefit of the study of living things?
Ans: To understand and appreciate nature, it is essential to study the structures, functions and related aspects of living organisms.The study of living organisms provides information and remedies to human problems regarding:
Health
Food
Environment.
6. What is difference between Zoology and Botany?
Ans: Zoology:
This division of biology deals with the study of animals.
Botany:
This division of biology deals with the study of plants.
7. Define Molecular biology?
Ans: Molecular biology deals with the study of the molecules of life
.It is also known as biochemistry
Example:
Water , Proteins ,Carbohydrates ,Lipids , Nucleic acids .
8. Define Morphology ?
Ans: “This branch deals with the study of form and structures of living organisms.”
9. What are fossils?
Ans: Fossils are the remains of extinct organism. Examples: Coal .
10. What are Parasites? Give examples?
Ans: “The organisms that take food and shelter from living hosts and, in return, harm them are called parasites.”
Examples: Viruses , Pathogenic Bacteria , Lices .
11. What are the Major Biological Issues today?
Ans: The major biological issues of today are as follows:
Human population grow
Infectious diseases
Addictive drug
Environmental pollution.
12. What is meant by Biogeography?
Ans: “It deals with study of the occurrence and distribution of different species of living organisms in different geopraphical regions of the world.”
It applies the knowledge of the characteristics of particular geopraphical regions to determine the characteristics of living organisms found there.
13. Define an atom and also tell its meaning?
Defination:
“An atom is defined as simplest form of matter which cannot be divided” It is composed of three fundamental sub mental particles:
Electrons
Protons
Neutrons .
No comments:
Post a Comment