CBSE Class 10 Science Biology Notes Heredity and Evolution Part 1

CBSE Class 10 Science Biology Notes Heredity and Evolution Part 1

Heredity:-

It refers to the transmission of traits from the parents to their offspring. Heredity is the continuity of features from one generation to another which are present in fertilized egg or zygote.

Speciation:-

The process by which new species develop from the existing species is known as Speciation
Evolution:-

It is the sequence of gradual changes which take place in the primitive
organisms over millions of years in which new species are produced.

Evidence of Evolution:-

1. Homologous organs,
2. Analogous organs

Theory of Darwin:-

Charles Robert Darwin explained the evolutionary principle in his famous book “The origin of species.” The theory proposed by him is popularly known as theory of natural selection or Darwinism.

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12th CBSE Physics Important Topics – Chapter 5

12th CBSE Physics Important Topics – Chapter 5
#MagnetismandMatter

1. Axial magnetic field of bar magnet as solenoid
2. Electric dipole in uniform magnetic field
3. Diamagnetic, Paramagnetic, Ferromagnetic Substances
4. Hysteresis Loop

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12th CBSE Math’s Important Topics, Chapter 5 – Continuity and Differentiability

12th CBSE Math’s Important Topics,
Chapter 5 – Continuity and Differentiability

1. Continuity of a Function
2. Logarithmic Differentiation
3. Differentiation of Functions in Parametric Form
4. Second Order Derivatives

Important Tips:- Graphs of the trigonometric functions, logarithmic, and exponential, application questions based on “Rolle’s Theorem” and “Mean Value Theorem”

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CBSE NCERT Class 10th Science biology Notes Heredity and Evolution Part II

CBSE NCERT Class 10th Science biology Notes Heredity and Evolution Part II

Homology:-

Organs with common origin & structure but different functions are termed as Homologous organs.

This tells us that there exists an evolutionary relationship between different species, maybe they originated from the same species with fore-limbs, gradually got changes as per their needs for survival. So, we can say that they share a common ancestor.

Analogy :-
Organs which perform similar function but have different origin & structures are termed as Analogous organs.

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Join Computer Science Coaching @ Atech Excel Solution


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CBSE has released the Admit Cards for class 10th and class 12th board exams on its official website.

CBSE has released the Admit Cards for class 10th and class 12th board exams on its official website.

The board exams will begin for :-

📚Class 12th – 15th February, 2019

📚Class 10th – 21st February, 2019

✍🏻Special Note :- Students should note that the login has been activated for Schools and not for students, which means schools will download the admit cards and students shall collect the admit cards from their respective schools.

After collecting admit cards from schools, students should check it carefully.

The admit cards contain the following details:

📌Exam roll number
📌Date of birth (only for class 10 students)
📌Name of examination
📌Candidate’s name
📌Exemptions provided
📌Admit Card ID
📌Subjects in which appearing with date of exam
📌Mother’s name
📌Father’s/Guardian’s name
📌Name of examination centre
📌Category of PwD

All the best for your exams.👍

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CBSE NCERT Class 10 Notes – Trigonometric identities

CBSE NCERT Class 10 Notes – Trigonometric identities

 

Trigonometry is used to analyze the relationship between angles heights and lengths of triangles and forms the foundation for higher mathematics.

The Above Video gives you an insight into the world of trigonometry with an ease that will be acceptable to the basic level student.

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12th CBSE Math’s Important Topics , Chapter – 3 Matrices

12th CBSE Math’s Important Topics , Chapter – 3
Matrices

• Multiplication of Matrices
• Symmetric and Skew Symmetric Properties
• Finding Inverse of a Matrix using elementary
transformation
• Most of the students get stuck in elementary
transformation

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📜New Guidelines from CBSE Board for your exams are as follows:-

📜New Guidelines from CBSE Board for your exams are as follows:-

Before the exam, CBSE has announced important guidance to the schools and parents on the website cbse.nic.in, in which they have been notified about the rules for the update. Let us understand what is written in the important guidance for the Board Examination 2019.

CBSE has Announced 4 New Rules

1. School Uniform Mandatory👔

School Uniforms have been made compulsory for regular candidates. According to the news of Times Now, the board has strictly told the schools to give instructions to their candidates about it. If students don’t wear the uniform correctly then they can be stopped for entry in the exam center.

2. Parents Signature on Admit Card

In addition to the candidates and principal’s signature on the admittance card, this year Central Board of Secondary Education has created a column for parents’ signature. Candidates should ensure that they have all required signature on the admission card of their CBSE board exam. Entry will not be permitted at the examination center if anybody signs off the signature.

3. No Entry after 10 o’clock

Any candidate in the exam center takes the entry at 10 AM. then they will not be given an entry in any condition. Therefore, all candidates and their parents are informed to ensure that they reach centers on time.

4. What to take in the Exam Center and not📵

Candidates can take their pens and require stationery in a transparent bag. Apart from these, candidates are only permitted to carry their school card or admission card of the CBSE Board. At the same time, check the signature or stamped on the admit card. Those candidates who have diabetes are permitted to take snacks with them. Also, any written material, mobile phone, purse or smart watches are not allowed within the exam hall.

All the best for your exams.👍

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