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12th Biology Monthly Test - 2 ( Zoology - Evolution )

St. Britto Hr. Sec. School - Madurai

12th Biology Monthly Test - 2 ( Zoology - Evolution )-Aug 2020

Time : 2.30 Hours

Part - A

Multiple Choice Question - Answer All Question

Morphological isolation is also known as _______________

Physiological isolation
Cytological isolation
Mechanical isolation
Seasonal isolation

_____________ is called age of Invertebrates

Cambrian
Devonian
Pennsylvanian
Mississippian

The term biogenesis was coined by

Thomas Huxley
Henry Bastian
Haldane
Weinberg

This can be explained clearly through industrial mechanism.

Mutation
Natural selection
Struggle for existence
Prodigality of production

The factor which affects Hardly Weinberg equation

Gene flow
Random mating
No mutation
none of the above

Founder's effect is related to

Genetic drift
Gene mutation
Extinction
Artificial selection

The wings of birds and butterflies is an example of

Adaptive radiation
convergent evolution
divergent evolution
variation

Australian ape Man refers to

Ramapithecus
Australopithecus
Dryopithecus
Sivapithecus

Emergence of modern birds occurred in _____________ period.

Devonian
Silurian
Jurassic
Cretaceous

The Neanderthal man had the brain capacity of

650 – 800cc
1200cc
900cc
1400cc

Heritable changes in or more characteristics of a population of _____________ from one generation to other is called evolution.

Individuals
species
genus
organisms

Evolutionary history of an organism is called

ancestry
ontogeny
phylogeny
paleontology

____________ era is called Golden age of reptiles.

Paleozoic
Mesozoic
Precambrian
Cenozoic

________________ are not examples of homologous organs.

Thorn and tendrils
Forelimb of animals and wing of bat
wing of bat and bird
Flippers of penguins and dolphins

________________ Was the first human like being

Homo habilis
Homo erectus
Homo sapiens
Homo erectus

Part - B

Generic 2 - Answer All Question

What are molecular clocks?

What are coprolites?

Name the types of natural selection.

How does Hardy-Weinberg’s expression (p²+2pq+q²=1) explain that genetic equilibrium is maintained in a population? List any four factors that can disturb the genetic equilibrium.

Name the five basic factors involved is the process of organic evolution according to modern synthetic theory.

State the Biogenetic law.
What are atavistic organs?

What are called connecting links?Given examples.

Part - C

Generic 3 - Answer All Question

What is Petrifaction?

Define microevolution.

Write a few lines about Homo habilis.

What is hybrid sterility?

State Hardy Weinberg's law.
What is artificial selection?

What are Coacervates?

What is divergent evolution?

Part - D

Generic 5 - Answer All Question

Rearrange the descent in human evolution
Austrolopithecus → Homo erectus → Homo sapiens → Ramapithecus → Homo habilis.

According to Darwin, the organic evolution is due to [AIPMT-2013]
a) Intraspecific competition
b) Interspecific competition
c) Competition within closely related species.
d) Reduced feeding efficiency in one species due to the presence of interfering species.
Differentiate between the eating habit and brain size of Australopithecus and Ramapithecus.

A population will not exist in Hardly- Weiberg equilibrium if [AIPMT-2015]
a) Individuals mate selectively
b) There are no mutations
c) There is no migration
d) The population is large

Mention any three similarities found common in Neanderthal man and
Homo sapiens.

How does Neanderthal man differ from the modern man in appearance?

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