Evolution

Question 1

Stellar distances are measured in

Answer 1

Light years

Question 2

Age of universe?

Answer 2

20 billion years old

Question 3

Big bang theory explains

Answer 3

Origin of universe

Question 4

The gases condensed under which conditions to form the galaxies

Answer 4

Gravitation

Question 5

Age of earth

Answer 5

4.5 billion years ago

Question 6

Was there anyy atmosphere on early earth?

Answer 6

Noo

Question 7

When did life appear on Earth?

Answer 7

4 bya .. 500 million years after formation of earth

Question 8

Who proposed that the first form of life could have come from pre existing non living organic molecules?( Rna proteins)

Answer 8

Oparin of Russia
Haldane of England
(HERO)

formation of life was preceded by chemical evolution.

Question 9

Who and when did he create the similiar condition as on early earth.. wat did he observe?

Answer 9

1953 SL Miller.. an American scientist.
Closed flask..
800°C
Observation - formation of amino acids

Question 10

Firs non cellular life form when?

Answer 10

3 bya..

Question 11

First cellular life form

Answer 11

2 bya.. single cell

Question 12

Name of sail ship of Charles Darwin

Answer 12

HMS Beagle

Question 13

Who came to the similiar idea about natural selection and fitness as Charles Darwin

Answer 13

Alfred Wallace a naturalist
Malay archipelago

Question 14

T/F

All the existing life forms share similaritiesss and share common ancestor

Answer 14

TRUE

Question 15

Embryological support for evolution was proposed by? And disproved by?

Answer 15

Ernst Heckel… proposed

Disproposed by.. karl ernst von baer
.. said ki.. embryos never paass through rhe adult stage of other animals

Question 16

Wat is homology and example?

Answer 16

Homology indicates common ancestary..
Similar anatomical structure

Divergent evolution

Ex-
Forelimbs of all mammals..
Vertebrate heart or brains.
Thorn of Bougainvillea and tendrils of cucurbita

Question 17

Wat are analogous structures

Answer 17

Convergent evolution
Same function differ in anatomy

Ex-
Wings of birds and butterflies

Eye of octopus and mammals

Flippers of penguin and dolphin

Sweet potato (root modification) and potato (stem modification)

Question 18

White coloured lichen grow in?

Answer 18

Before industrialisation.. in
Lichens do. Not grow in areas that are polluted

Question 19

Is evolution a directional process?

Answer 19

No.. it is a stochastic process based on chance events in nature and chance mutation in the organism

Question 20

Who were probably the most recent common ancestors of modern day frogs and salamander

Answer 20

Lobefinned fishes

Question 21

All bryophytes and tracheophytes have originated from

Answer 21

Chlorophyte ancestor

Question 22

Which is a fish like reptile

Answer 22

Icthyosaur

Question 23

Lobefins which evolved into first amphibian were

Answer 23

Coelacanths

Question 24

Which is the largest diverse group/ unit that can show gene flow

Answer 24

Population