Write the names of the following: A 2 mya primate that lived in East African grasslands.

Scientific evidence shows that the physical and behavioural traits shared by all people originated from apelike ancestors and evolved over a period of approximately six million years. Australopithecus is a 2 mya primate that lived in East African grasslands. They lived in East African grasslands about 2 mya (million years ago). They had erect posture, walked on two legs, and were omnivores. Most importantly, they used weapons carved out of stone to hunt. They were cave dwellers and possessed characters of both humans and apes.

Write the names of the following : A 15 mya primate that was ape-like.

The evolution of the human being or the Homo sapiens has initiated about 15 million years ago in history. The gradual changes in the process of evolution took place. Dryopithecus lived 15 mya (million years ago) in Africa and Europe. They were ape-like, hairy, and they walked like gorillas. They had semi-erect posture and large brain size. They were arboreal. Dryopithecus is considered as the direct ancestor of modern day apes.

E M B I B E

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 7 - Evolution>CBSE-2018>Q 3

EASY

12th CBSE

IMPORTANT

Earn 100

With the help of an algebraic equation, how did Hardy-Weinberg explain that in a given population the frequency of occurrence of alleles of a gene is supposed to remain the same through generations?

Important Questions on Evolution

EASY

12th CBSE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 7 - Evolution>CBSE-2018>Q 4

Differentiate between analogous and homologous structures.

EASY

12th CBSE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 7 - Evolution>CBSE-2018>Q 5

Select the analogous structure (s) from the list given below.

EASY

12th CBSE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 7 - Evolution>CBSE-2019>Q 6

Mention one example each from plants and animals exhibiting divergent evolution.

HARD

12th CBSE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 7 - Evolution>CBSE-2019>Q 7

According to the Darwinian theory of natural selection, the rate of appearance of new forms is linked to the life cycle or the life span of an organism. Explain with the help of an example.

HARD

12th CBSE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 7 - Evolution>CBSE-2019>Q 8

Describe S.L Miller's experiment. Comment on the observations he made and his contribution towards the origin of life on Earth.

MEDIUM

12th CBSE

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 7 - Evolution>CBSE-2020>Q 9

Wings of birds and wings of butterflies contribute to locomotion. Explain the type of evolution such organs are a result of.