Assertion (A): There is a sufficient reason to believe that first cells on the planet lived in an atmosphere lacking oxygen. Reason (R): Thus even all living organisms retain the enzymatic mechanism to completely oxidise glucose without the help of oxygen. The correct option among the following is:

(A) is true, (R) is true and (R) is the correct explanation for (A)

(A) is true, (R) is true but (R) is not the correct explanation for (A)

Which one of the following factors is not included in the 'Modern Synthetic theory' of evolution?

Inheritance of acquired characters

Mutations & Genetic recombination

Match the following Set-I Set-II (A) Cyanognathus (I) Reptiles & birds (B) Archaeopteryx (II) Amphibians & reptiles (C) Seymouria (III) Reptiles & mammals (D) Eusthenopteron (IV) Protochordates & fishes (V) Fishes & amphibians The correct match is

A = III , B = I , C = II , D = V

A = IV , B = I , C = II , D = V

A = III , B = II , C = I , D = V

A = V , B = II , C = I , D = IV

Statement I: The existence of deleterious genes within the populations is called genetic load. Statement II: The changes in the frequency of a gene that occurs merely by chance in small populations is called genetic drift. The correct option among the following is

Statement I is true. But II is false.

Statement I is false. But II is true.

E M B I B E

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 44 - Organic Evolution>TS EAMCET - 10 August 2021 Shift 1>Q 9

MEDIUM

TS EAMCET

IMPORTANT

Earn 100

Match the following

LIST-I LIST-II

A The golden age of reptiles I Carboniferous period

B Age of amphibians II Cenozoic era

C The golden age of fishes III Mesozoic era

D Age of mammals IV Devonian period

V Silurian period

The correct match is

50% studentsanswered this correctly

Important Questions on Organic Evolution

HARD

TS EAMCET

IMPORTANT

EMBIBE CHAPTER WISE PREVIOUS YEAR PAPERS FOR BIOLOGY>Chapter 44 - Organic Evolution>TS EAMCET 2020 (28-Sep Shift-1)>Q 10

Study the following and pick up the correct combinations:

S.NO	List -1	List-2	List -3
I.	Anagenesis	Divergent evolution	One species diverges into two or more species
II.	Cladogenesis	Phyletic evolution	Evolution of a new species in single lineage
III.	Gradualism	Charles Lyell	Earth has changed slowly through ages
IV.	Biogenesis	Louis Pasteur	Living organisms originate from preexisting forms

Learn and Prepare for any exam you want !

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	LIST-I		LIST-II
A	The golden age of reptiles	I	Carboniferous period
B	Age of amphibians	II	Cenozoic era
C	The golden age of fishes	III	Mesozoic era
D	Age of mammals	IV	Devonian period
		V	Silurian period

Match the following LIST-I LIST-II A The golden age of reptiles I Carboniferous period B Age of amphibians II Cenozoic era C The golden age of fishes III Mesozoic era D Age of mammals IV Devonian period V Silurian period The correct match is

Important Questions on Organic Evolution

Learn and Prepare for any exam you want !

Match the following

LIST-I LIST-II

A The golden age of reptiles I Carboniferous period

B Age of amphibians II Cenozoic era

C The golden age of fishes III Mesozoic era

D Age of mammals IV Devonian period

V Silurian period

The correct match is