questionedithistorytranslations

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
Directly under the shell, there is a small pocket of air. The microscopic pores on the egg surface allow the CO2 to escape and fresh air to get in, so a developing bird can breathe.
Kasia
0
Correct this question
9
Very interesting!
reach: rather globalanimalsbiologybirdseggshard simple questionsnaturephysicszoology
Birds quizPhysics quizBiology quiz
  You will play as

Answers by country

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
answers
flagBrazil
8%
13%
62%
14%
61
flagMalaysia
3%
15%
61%
18%
59
flagAustralia
5%
15%
60%
18%
110
flagRussia
13%
10%
58%
14%
211
flagBelarus
10%
10%
58%
19%
56
flagthe United States
6%
19%
57%
13%
1417
flagPakistan
10%
15%
56%
16%
123
flagGermany
5%
18%
55%
19%
176
flagCanada
11%
16%
55%
16%
79
flagthe United Kingdom
8%
18%
54%
15%
449
flagNigeria
4%
18%
54%
11%
44
flagPoland
12%
18%
53%
15%
24442
flagIndia
5%
26%
51%
14%
1217
flagSingapore
8%
34%
51%
5%
35
flagUnknown
6%
25%
48%
20%
75
flagGreece
8%
32%
47%
11%
34
flagUkraine
19%
13%
46%
17%
273
flagthe Philippines
7%
26%
46%
15%
127
flagthe United Arab Emirates
5%
18%
42%
23%
38
flagKazakhstan
23%
23%
30%
20%
39

What is inside Swiss cheese holes?

nitrogen
carbon dioxide
water vapor
air

Where does the name K2 come from?

name of Polish climber - Jerzy Kukuczka
the fact it's second in height in the world
name of the Karakoram Range
the name "King George II"

Where was Leonardo da Vinci born?

in Florence
in Verona
in Orleans
in Vinci

What mainly characterises the landscape of the Sahara desert?

it is rocky
it is sandy
it is grassy
it is mountainous