Hi

You can get complete notes for evolution for calss 12th biology by visiting our page the link for tge same is given below

https://learn.careers360.com/biology/genetics-and-evolution-chapter/

Notes will help you to understand the concept in easy way , you can use it as a revision tool to revise the chapter just

hi,

see if you opt for bsc in zoology/botany/microbiology or any other courses related with biology you need to remember the scientific names, let it be animals or virus or bacterias any thing, scientific names is one of the most important things and it includes in most of the topics

Hello james,

Genetic drift is a mechanism of evolution in which the allele frequencies change over generations as a matter of chance.

It occurs in populations of all sizes but its effect is the maximum in a small population.

Genetic drift is observed when there is a sudden decline in

Hello james,

The two key concepts of Darwin’s theory of evolution are:

1. Branching Descent

2. Natural Selection

Branching Descent

It is the process in which new species originate from a single ancestor. They became adapted to the new environment through reproductive isolation. For eg., Darwin’s finches which evolved from

Hello Rajeev!

Camouflage refers to the term disguise. It is a natural phenomenon used by plants and animals to disguise themselves as per their environment. They mimic according to their surroundings to avoid detection. Thus it increases the chance of survival by hiding it from predators.

Camouflage is the natural

Hello,

To get an admission in PHD you need to score 630 marks in GATE score and you need to have 60% of marks in your Degree.

Hope this helps you.

Option number 3 that is Tuatara -> Lizard -> Snake -> Crocodile is the correct answer. Tuataras are reptiles endemic to New Zealand and Lizards were evolved from Tuatara only. The snakes are close relatives of the lizards. However, they lack external ear openings and movable eyelids.

Thank you.

Hi Ishika

Answer is 1. Erectus ->Homo -> Primate ->chordate - >Animalia

Hope it helps you

Best of Luck!

Statement number 2 is the correct one. That is cryptic camouflage is seen in Biston Betularia.

It is a temperate species of moths who fly at night. Biston Betularia is also called as the peppered moth. As an example of natural selection, peppered moth's example is oftenly used.

Best wishes.