Which of the following conclusions is from industrial melanism?

(1) Camouflage causes the white moths to get caught by predators more even in rural areas during industrialisation.

(2) During industrialisation, white variant of moths got wiped out completely in urban areas.

(3) During industrialisation, lichen will increase in number.

(4) In a mixed population, those that can better adapt, survive and increase in population size.

Subtopic:  Genetic Basis of Adaptation |
 63%
From NCERT
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Which of the following is placental mammal?

(1) Bandicoot

(2) Numbat

(3) Wombat

(4) Bobcat

Subtopic:  Concept of Organic Evolution: Evidence: 2 |
 66%
From NCERT
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Which of the following statements is not true if we consider postulates of Darwinian theory of evolution?

(1) Evolution by natural selection would have started when cellular forms of life with similarities in metabolic capabilities originated on Earth

(2) The rate of appearance of new forms is linked to the life cycle or the life span.

(3) Fitness is based on characteristics which are inherited.

(4) Adaptive ability is inherited.

Subtopic:  Palentological Evidences of Evolution |
From NCERT
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If more individuals acquire peripheral character value at both the ends of the distribution curve; in such case natural selection has resulted in

(1) Stabilization

(2) Directional

(3) Disruption

(4) May be B or C depending upon population parameters

Subtopic:  Natural Selection |
 84%
From NCERT
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The mechanism of non cellular aggregates of giant macromolecules to cell with membranous envelop is

(1) Natural selection

(2) Not known

(3) Mutation

(4) Recombination

Subtopic:  Origin of Life: Chemical Evolution: 2 | Origin of Life |
 60%
From NCERT
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The flourishing period of progymnosperm is

(1) Devonian

(2) Silurian

(3) Cretaceous

(4) Permian

Subtopic:  Palentological Evidences of Evolution |
 57%
From NCERT
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The flourishing period of seed ferns is

(1) Jurassic

(2) Devonian

(3) Carboniferous

(4) Triassic

Subtopic:  Palentological Evidences of Evolution |
 59%
From NCERT
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Gnetales evolved from

(1) Psilophyton

(2) Rhynia type plants

(3) Tracheophyte ancestors

(4) Chlorophyte ancestors

Subtopic:  Palentological Evidences of Evolution |
 68%
From NCERT
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Sauropsids gave rise to

(1) Turtles

(2) Mammals

(3) Gnetales

(4) Ginkgo's

Subtopic:  Palentological Evidences of Evolution |
 70%
From NCERT
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Which of the following is not true?

(1) Small sized reptiles of dinosaurs of that era still exist today.

(2) Tyrannosaurs rex was about 20 feet in height and had hugesome dagger like teeth.

(3) Dinosaur extinct, a possible reason may be most of them has evolved into birds

(4) Giant ferns fell to form coal deposits very fast

Subtopic:  Palentological Evidences of Evolution |
 56%
From NCERT
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