Biology Quiz - 6 (#NEET)(#premedical)(#AIPMT)(#class12Biology)(#eduvictors)(#class11Biology)(#class12Biology)

Biology Quiz - 6 

Q1: Which of the following statements is wrong for viroids?

(a) They cause infections.

(b) Their RNA is of high molecular weight.

(c) They lack a protein coat.

(d) They are smaller than viruses.

Class 9 Maths - Important Identities (#class9Maths)(#eduvictors)

Class 9 Maths - Important Identities

(a+b)² = a² + 2ab+ b²

(a–b)² = a² –2ab + b²

a² – b² = (a+b)(a–b)

CBSE Class 10 - History - The Rise Of Nationalism in Europe ( Questions - Answers)(#class10SocialScience)(#class10History)(#eduvictors)(#cbsenotes)

CBSE Class 10 - History -
The Rise Of Nationalism in Europe
( Questions - Answers)

Q1: Define nationalism.

Answer: The expression of Nationalism was brought about by the French revolution in 1789. Nationalism developed a sense of common identity and shared past or descent. Political movements and struggles by the leaders led to the current commonness. It emerged as a force to unify people which later led to the emergence of the nation-state.

Q2: Who was Frederic Sorrieu? 

Answer: He was a French artist famous for a series of four prints prepared in 1848 that visualised the dream of a world consisting of ‘Democratic and Social Republics’.

CBSE Class 11 Maths - Relations - Domain, Range and Co-Domain (#class11Maths)(#eduvictors)(#cbse2021)

CBSE Class 11 Maths - Relations - Domain, Range and Co-Domain

RELATION 

Let A and B be two nonempty sets. Then, a relation R from A to B is a subset of (A × B).

Thus, R is a relation from A to B ⇔ R ⊆ (A × B).

If (a, b) ∈ R then we say that ‘a is related to b‘ and we write, a R b. 

If (a, b) ∉ R then ‘a is not related to b‘ and we write, $a \not \mathrel{R} b$.

Q1: Let A = {-1, 2, 4} and B = {1, 3}. Show A × B as arrow diagram.

Class 12 Informatics Practices - Scatter Plots Using Matplotlib (#class12InformaticsPractices)(#python)(#matplotlib)(#eduvictors)(#cbse2021)

Class 12 Informatics Practices - Scatter Plots Using Matplotlib 

A scatter plot also called scatter chart uses dots to represent data points for two different numeric variables. The position of each dot on the horizontal and vertical axis represent an individual data point.  

A scatter plot is commonly used to compare distribution of two variables and to find visually any correlation between them. If there are distinct clusters/segments within the data, it will be clear in the scatter plot.

Let us try to plot a few scatter graphs using matplotlib.

CBSE Class 7 - Maths - Fractions - Solved Problems (#class7Maths)(#eduvictors)

CBSE Class 7 - Maths - Fractions - Solved Problems

A fraction is a part of whole.

Fractions are of various types. Commonly used fractions are mixed fractions, proper fractions

e.g. $ \frac{13}{4}, 2\frac{3}{4}, \frac{1}{2} $ etc.

COMPARE FRACTIONS

We can compare two or more fractions by taking the L.C.M of the denominators of the given fractions. Fraction with a greater denominator is bigger and vice versa.

Q1: Compare $\frac{23}{52} \textrm{ and } \frac{19}{22} $

Answer: $\frac{23}{52} > \frac{19}{22}$

Class 6 - Maths: Integers (Worksheet)(#class6Maths)(#eduvictors)

Class 6 - Maths: Integers (Worksheet)

Fill in the blanks in the following sentences with suitable word(s):

1. A collection of – 1, – 2, – 3, – 4, ... is called ________ integers.

2. Every positive integer is ________ than every negative integer.

3. Zero is ______ than every positive integer.

CBSE Class 9 Maths - Number Systems - Very Short Answer Based Questions (#class9Maths)(#cbsenotes)(#eduvictors)

CBSE Class 9  Maths - Number Systems - Very Short Answer Based Questions

Q1: Simplify $\sqrt[4]{32}$ ?

Answer: 

$\sqrt[4]{32} = \left ( 32 \right )^{\frac{1}{4}} $

$= \left ( 2^5 \right )^{\frac{1}{4}}$

$ = \left ( 2^4 . 2^1 \right )^{\frac{1}{4}} $

$= \left ( 2^4 \right )^{\frac{1}{4}}.(2)^{\frac{1}{4}}$

$= 2.\sqrt[4]{2}$

CBSE Class 12 - Biology - Chapter 1: Reproduction in Organisms (Questions and Answers)(#class12Biology)(#eduvictors)

CBSE Class 12 - Biology - Chapter 1: Reproduction in Organisms (Questions and Answers)

Q1: Define life span.

Answer: Life span is the period from birth to the natural death of an organism.

Q2: What is the life span of the following organisms?

(a) Mayfly

(b) Human Being

(c) Parrot

(d) Rice Plant

(e) Sequoia Trees

(f) Butterfly

Answer: 

(a) Mayfly - 1 day

(b) Human Being - 100 years

(c) Parrot - 140 years

(d) Rice Plant - 3 to 4 months

(e) Sequoia Trees - 3000 to 4000 years

(f) Butterfly - 1 to 2 weeks

CBSE Class 11 Maths - Cartesian Products of two sets (Important Points)- Relations and Function (#class11Maths)(#eduvictors)(#cbsenotes)

Class 11 Maths - Cartesian Products of Two sets (Important Points)

Chapter: Relations and Functions

① Let A and B be two nonempty sets. Then, the Cartesian product of A and B is the set denoted by (A×B), consisting of all ordered pairs (a, b) such that a ∈ A and b ∈ B.

∴ A × B = {(a, b): a ∈ A and b ∈ B }. 

② If A = ϕ or B = ϕ (empty sets), we define A × B = ϕ

③ B × A = {(b, a) : b ∈ B and a ∈ A} and A × A = {(a,b):a,b ∈ A}.