Class 12 Biology - Organisms and Population MCQs
Q1. A majority of organisms that are restricted to a narrow range of temperature are called as
(a) stenothermal
(b) endothermal
(c) ectothermal
(d) eurythermal
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Q1. A majority of organisms that are restricted to a narrow range of temperature are called as
(a) stenothermal
(b) endothermal
(c) ectothermal
(d) eurythermal
Q1. Which one is the most important human activity leading to extinction of wildlife?
(a) Alteration and destruction of the natural habitats.
(b) Hunting for commercially valuable wildlife products.
(c) Pollution of air and water.
(d) Introduction of alien species.
Q1: In the figure below which option a, b and c refers to line of sight?
Answer: option a
An equation involving an independent variable (variables), dependent variable and derivative or derivatives of the dependent variable with respect to the independent variable (variables) is called a differential equation.
It is an equation involving unknown functions and their derivatives w.r.t. one or more independent variables.
Fill in the blanks with suitable word(s).
1. The generation resulting immediately from a cross of the first set of parents is called ____________.
2. All cells forming the body of an organism, except the reproductive cells are called _________ cells.
3. A type of crossing in which only one pair of contrasting characters is considered is called _________ cross.
The University Grants Commission (UGC) has changed the way students are admitted to undergraduate programmes at central universities. The University Grants Commission (UGC) stated on Monday that starting in the 2022-23 academic year, the Central Universities Entrance Test (CUET) will replace the Class 12 marks-based admissions formula.
CBSE Class 11 - Mathematics - Limits and Derivatives Part-11
Working rule for finding the derivative of implicit functions
First method:
Differentiate every term of f (x, y) = 0 with respect to x.
👉 Around the 3rd century BCE, Romans developed their own number system for counting.
👉 Roman Numerals used symbols to represent numbers such as
Roman Numeral Hindu-Arabic Numeral
I 1
V 5
X 10
L 50
C 100
D 500
M 1000
Questions and Answers
Q1. What is Entrepreneurship Development?
Answer: Entrepreneurship is the process of setting up one's own business as distinct from pursuing any other economic activity, be it employment or practising some profession. It is a process of enhancing entrepreneurial skills and knowledge through structured learning and institution-building programmes.
The person who set up his business is called an entrepreneur. The output of the process, that is, the business unit is called an enterprise.
Richard Cantillon, a French economist defines:
"Entrepreneur is a person who organizes the business, undertakes the risk and enjoys the profit"
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