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121 votes

Is there a reason why human eyesight and plants make use of the same wavelength of light?

human-biology botany photosynthesis vision eyes asked Jan 5 '12 at 20:18
biology.stackexchange.com

114 votes

Why is thymine rather than uracil used in DNA?

biochemistry dna rna asked Dec 16 '11 at 20:57
biology.stackexchange.com

45 votes

Is there any advantage to one blood type over another?

human-biology hematology asked Jan 18 '12 at 22:10
biology.stackexchange.com

45 votes

What is the 'deleted recent questions' page in the user profile?

support profile-page deleted-recent-posts asked Jun 22 '13 at 21:28
meta.stackexchange.com

42 votes

How do close votes age away?

support vote-to-close asked Jun 20 '12 at 22:13
meta.stackexchange.com

39 votes

Stack Exchange still uses Wikipedia's Citation Needed text

bug status-completed moderator-tools wording post-notice asked Mar 10 '12 at 16:03
meta.stackexchange.com

33 votes

How did these circular duplicates come about?

bug exact-duplicates meta asked Feb 27 '13 at 22:54
meta.stackexchange.com

25 votes

Users without full edit rights should not be able to submit edits to deleted posts

bug status-completed edits deleted-questions edit-badges asked May 25 '13 at 21:18
meta.stackexchange.com

23 votes

Include 101 rep users (i.e. those with the association bonus) in first questions/first answers within the review page

feature-request status-completed review new-users asked Apr 5 '12 at 10:17
meta.stackexchange.com

22 votes

How can I re-enable backspace navigation in Chrome?

google-chrome asked Jun 4 '16 at 10:17
superuser.com

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Top Answers
186
Is it possible to remove the Careers banner with the dying starfish?
meta.stackexchange.com

74
Why do Humans not produce Vitamin C like other mammals?
biology.stackexchange.com

66
Does UNICEF use less than 14% of the donated money for the advertised causes?
skeptics.stackexchange.com

48
Why Does Salt Water Help Sore Throats?
biology.stackexchange.com

40
How does laughing gas (N₂O) work?
biology.stackexchange.com

33
Why do plants have green leaves and not red?
biology.stackexchange.com

32
Is there any advantage to one blood type over another?
biology.stackexchange.com

30
Why does this URL have “?as=1” at the end of it?
meta.stackexchange.com

27
Why did the process of sleep evolve in many animals? What is its evolutionary advantage?
biology.stackexchange.com

27
What's the maximum and minimum temperature a human can survive?
biology.stackexchange.com

26
What are the fantasy secret hats you'd wish to get?
meta.stackexchange.com

24
What is the maximum level that you can upgrade troops/spells to?
gaming.stackexchange.com

22
Why would stablising selection ever happen?
biology.stackexchange.com

18
How does the immune system “learn” from a vaccine?
biology.stackexchange.com

17
Anomalous non-award of a class badge
meta.stackexchange.com

17
What is the best Stack Exchange site where business related questions can be asked?
meta.stackexchange.com

17
What is up with lighter/washed out text?
meta.stackexchange.com

17
What part of food gives the blood red color?
biology.stackexchange.com

17
Stack Exchange formatting guidelines?
meta.stackexchange.com

16
What is your primary use for the user profile page? It's getting a redesign
meta.stackexchange.com

16
Printing an A3 (Word) document on an A4 printer
superuser.com

15
Do plants produce any heat?
biology.stackexchange.com

15
At what age do babies begin to synthesize their own antibodies?
biology.stackexchange.com

15
My flag declined but question closed by other moderators
meta.stackexchange.com

15
Is negative one plural?
meta.stackexchange.com

15
Badge notifications should have the same color as the badge
meta.stackexchange.com

14
How does laser surgery correct accommodation problems?
biology.stackexchange.com

14
Why can cones detect color but rods can't?
biology.stackexchange.com

13
Does the DNA sequence of a butterfly match that of the caterpillar it used to be?
biology.stackexchange.com

13
What is the most heat-tolerant organism?
biology.stackexchange.com

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