Concept of life - class-X
Description: concept of life | |
Number of Questions: 39 | |
Created by: Sharvani Hegde | |
Tags: origin of life and organic evolution heredity and evolution concept of life zoology cell theory, cell specialization, and cell replacement organic evolution biology |
The sequence of origin of life may be
The book "Origin of species" was written by
A novel species with double stranded genetic material consists of 5 bases namely P. Q. R. S. T. with percentages given below.
P | Q | R | S | T | |
---|---|---|---|---|---|
Percentage | 22 | 28 | 22 | 12 | 16 |
Based on the above information, which ONE of the following infrences is NOT supported by the observation?
First life consisted of.
In the successive seral stages , the following takes place, except :
Species belonging to different time period are called?
Reptiles like mammals originated in ______________.
Which is incorrect about protobionts in abiogenic origin of life ?
Which of these are considered most essential in the origin of life?
Extra-terrestrial origin of life was proposed by theory of ____________.
When did life originate on earth?
At the times of origin of life, the structure temperature of earth was :
Biopoiesis is :
Atmosphere of earth just before the origin of life consisted of ___________________.
Which was absent/ least abundant in the atmosphere at the time of origin of life ?
Which is the most important for origin of life ?
Oldest rock is dated :
Following are the two statements about the origin of the life :
(a) The earliest organisms that appeared on the earth were nongreen and presumably anaerobic.
(b) The first autotrophic organisms were the chemoautotrophic that never released oxygen.
Of the above statements which one of the following options is correct?
Prctobiogenesis occurred :
Origin of first life is
Assertion : We have lost all the direct evidences of origin of life.
Reason : The person responsible to protect the evidences were not skilled.
Which one of the following is the most effect tool in species delimitation within the species complex?
Which of the following ship was sailed by Darwin?
Living organisms on the Earth have evolved gradually from one form to another over the million years. This statement was given by
Which of the following factors are involved in the formation of new species?
The species which have a restricted distribution are known as.
Choose the correct answers from the alternatives given.
Which of the following live in habitats much like those of the early Earth?
Choose the correct answers from the alternatives given .
Which of the following statements is true?
Which of the following gases probably least abundant in the early atmosphere?
Most of the history of life concerns the evolution of
Which of the following statements is true?
The term, reducing atmosphere for the early earth means that the atmosphere
Members of biologic species are potentially able to
Who first proposed the term and concept of species?
Which was absent in the atmosphere at the time of origin of life?
The first person who proposed that small organic molecules can be formed in and oxygen-deprived environment was
During which of the following intervals did life originate on the Earth?
The first genes may have developed when
Transformation of the early reducing atmosphere of the earth into an oxidizing atmosphere was mainly due to the activities of