question edit history translations

When did first animals appear?

6 thousand years ago

600 - 750 million years ago

10 million years ago

it's impossible to define

The oldest animals are found in the Ediacaran biota, towards the end of the Precambrian, around 610 million years ago. It had long been doubtful whether these included animals, but the discovery of the animal lipid cholesterol in fossils of Dickinsonia establishes that these were indeed animals.

synapsaa

3

icelight wikipedia → Animal#Evolutionary origin

animals

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Answers by country

Greece

9%

81%

0%

9%

11

the United States

3%

68%

15%

12%

32

the United Kingdom

4%

56%

13%

26%

23

Germany

3%

54%

25%

16%

31

India

0%

53%

7%

30%

13

Poland

3%

49%

24%

22%

4417

Pakistan

0%

40%

10%

50%

10

How do baby birds get oxygen inside their eggs?

They have a large oxygen supply from the start

Oxygen is created during protein reduction

Oxygen comes in through pores in the shell

They don't need oxygen at all

Which dogs are known to eat fish?

Irish Water Spaniel

Portuguese Water Dog

Where is it NOT possible to find a penguin?

on Galapagos Islands (near equator)

in South America

In geometry, a ball used in rugby is...

an elliptic cylinder