Some important points and topics for newt

Phenomenon when organisms resembling others for escaping from enemies is

mimicry

Employment of hereditary principles in the improvement of human race is

Eugenics

Homeostasis is

tendency to change with change in environment

Pedology is science of

soil

Study of fossils is

Paleontology

A nucleotide is formed of

nitrogen base, sugar, and phosphate

Glycogen is a polymer of

glucose

Adenine is

purine

In RNA, thymine is replaced by

uracil

The CO2 content by volume in the atmospheric air is about

0.0314%

Which one of the following is a living fossil?

Ginkgo biloba

Warm ocean surge of the Peru Current recurring every 5-8 year or so in the East Pacific of South America is widely known as

El Nino

If there was no CO2 in the earth's atmosphere, the temperature of earth's surface would be

less than the present

An orchid resembling the female of an insect so as to be able to get pollinated is due to the phenomenon of

pseudocopulation

The most important feature of all living systems is to

replicate the genetic information

Relative Biological Effectiveness (RBE) is usually referred to damages caused by

radiation

First life on earth was

chemoheterotrophs

What is true for photolithotrophs?

Obtain energy from radiations and hydrogen from inorganic compounds

Most abundant organic compound on earth is

cellulose

Reason of diversity in living being is

long term evolutionary change

Organisms which obtain energy by the oxidation of reduced inorganic compounds are called

chemoautotrophs

There is no life on moon due to the absence of

water

Which one of the following is categorized under living fossils?

Cycas

According to Oparin, which one of the following was not present in the primitive atmosphere of the earth?

oxygen

Age of fossils in the past was generally determined by radio-carbon method and other methods involving radioactive elements found in the rocks. More precise methods, which were used recently and led to the revision of the evolutionary periods for different groups of organisms, include

Electron Spin Resonance (ESR) and fossil DNA

More than 70% of world's fresh water is contained in

Polar ice

Barophilic prokaryotes

grow and multiply in very deep marine sediments

Carbohydrates, the most abundant biomolecules on Earth, are produced by

sme bacteria, algae, and green plant cells

Which of the following is the relatively most accurate method for dating of fossils?

Electron-spin resonance method

Animals have the innate ability to escape from predation. Examples for the same are given below. Select the incorrect example.

Poison fangs in snakes

Praying mantis is a good example of

social insects

Which one of the following is not a living fossil?

Archaeopteryx

Which one of the following is an example of negative feedback loop in humans?

Constriction of skin blood vessels and contraction of skeletal muscles when it is too cold

The living organisms can be unexceptionally distinguished from the non-living things on the basis of their ability for

reproduction

Biological organization starts with

submicroscopic molecular level

Which one of the following scientist's name is correctly matched with the theory put forth by him?

Weismann- Theory of continuity of Germplasm

Humming birds and hawk illustrate

adaptive radiation

'Origin of species' was written by

Darwin

Evolution is

history and development of race along with variations

"Continuity of germplasm" theory was given by

Weismann

Theory of inheritance of acquired characters was given by

Lamarck

Parallelism is

adaptive convergence of closely related groups

Basic principles of embryonic development were pronounced by

von Baer

Correct order is

Palaeozoic - Mesozoic - Coenozoic

Which was absent in the atmosphere at the time of origin of life?

O2

The first organisms were

chemoheterotrophs

Evolutionary convergence is development of

common set of characters in group of different ancestry

Theory of natural selection dwells on

natural selection acting on favorable variations

Weismann cut off tails of mice generation after generation but tails neither disappeared nor shortened showing that

Lamarckism was wrong in inheritance of acquired characters

Genetic drift is change of

gene frequency in same generation

"Golden age of dinosaurs"/Age of reptiles was

Mesozoic

The earliest fossil form in the phylogeny of a horse is

Eohippus

Homologous organs are

pectoral fins of fish and fore limbs of horse

Two geographical regions separated by high mountains are

Palearctic and Oriental

Which one is irrelevant to evolution of man?

Loss of tail

Which one does not favor Lamarckian concept of inheritance of acquired characters?

Melanization of peppered moth in industrial areas

Frequency of a character increases when it is

adaptable

The presence of gill slits, in the embryos of all vertebrates, supports the theory of

recapitulation

The homologous organs are those that show similarity in

origin

Which one of the following sets includes only the vestigial structures in man?

Coccyx, vermiform appendix, ear muscles