Lesson 0: Evolving Concept of Life Based on Emerging Pieces of Evidence

Question 1

The early earth is said to be violent
because of the meteorites and volcanic
eruptions.

Answer 1

4.6 - 3.8 BYA

Question 2

zircon crystal was formed

Answer 2

4.6 - 3.8 BYA

Question 3

Life on Earth initially began with
prokaryotes

Answer 3

3.5 BYA

Question 4

life discovered in sedimentary
rock formations called stromatolites.

Answer 4

3.5 BYA

Question 5

The first photosynthetic organism
thrived the earth which is blue green
algae

Answer 5

3.0 BYA

Question 6

blue green algae is called

Answer 6

cyanobacteria

Question 7

cyanobacteria

Answer 7

3.0 BYA

Question 8

Appearance of the first eukaryotes
and the influx of multicellular
organisms

Answer 8

2.0 BYA

Question 9

Appearance of the first eukaryotes
and the influx of multicellular
organisms occurred

Answer 9

1.2 billion years ago

Question 10

paleozoic era

Answer 10

500 MYA

Question 11

the trilobites
and cephalopods became dominant
in the ocean particularly during the
Cambrian and Ordovician

Answer 11

500 MYA

Question 12

periods in the paleozoic era

Answer 12

cambrian and ordovician

Question 13

Cambrian and Ordovician period

Answer 13

500 MYA

Question 14

mesozoic era

Answer 14

251 - 65.5 MYA

Question 15

the mesozoic era is the age of

Answer 15

reptiles

Question 16

periods in the mesozoic era

Answer 16

triassic, jurassic, cretaceous period

Question 17

ceonzoic era

Answer 17

250 TYA

Question 18

recent life and based on
paleontological evidence

Answer 18

250 TYA

Question 19

Homo erectus have
evolved.

Answer 19

250 TYA

Question 20

Hadean

Answer 20

zircon crystal

Question 21

Archean

Answer 21

stromatolites

Question 22

Proterozoic Eon

Answer 22

biomarkers

Question 23

Paleozoic Era

Answer 23

trilobite fossils

Question 24

Mesozoic Era

Answer 24

dinosaur fossils

Question 25

Cenozoic Era

Answer 25

homo erectus

Question 26

Early Earth
Development

Answer 26

hadean

Question 27

Period of
Appearance of
First Prokaryotes

Answer 27

archean

Question 28

Period of
appearance of the
first eukaryote

Answer 28

biomarkers

proterozoic eon

Question 29

Dominance of
appearance of
trilobites

Answer 29

paleozoic era

Question 30

Dominance of
dinosaurs

Answer 30

mesozoic era

Question 31

Recent Life

Answer 31

cenozoic era