User uhoh

6

36

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2

answers

3k

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Is C. elegans always observed with precisely 302 neurons? Are there ever individual viable exceptions?

May 25 '18 at 0:26 tsttst 1,317

3

34

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2

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10k

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Why "Having chlorophyll without photosynthesis is actually very dangerous" and "like living with a bomb"?

photosynthesis

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4

26

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1

answer

3k

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Bird brain-eating Mantis - how does it crack the skull?

entomology predation

Jan 27 '20 at 9:26 CommunityBot 1

4

20

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1

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3k

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How did the largest/longest dinosaurs hold their head and necks up?

muscles bio-mechanics dinosaurs

Aug 10 '17 at 18:08 iayork 13.9k

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17

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1

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3k

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Identify this giant green moth(?) with great taste?

species-identification entomology behaviour

Mar 24 '20 at 4:04 tyersome 4,586

5

16

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2

answers

976

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Are two colors (red + blue) necessary for LED grow lights, or would either color be sufficient?

botany plant-physiology photosynthesis light

Jun 15 at 11:55 Ruslan 375

2

14

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1

answer

12k

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Can plants produce oxygen at night (without light)?

biochemistry plant-physiology photosynthesis

May 9 '18 at 8:24 CommunityBot 1

1

12

votes

4

answers

2k

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Are bleach solutions still routinely used in biochemistry laboratories to rid surfaces of bacteria, viruses, certain enzymes, and nucleic acids?

lab-techniques

Nov 13 '20 at 22:47 uhoh 4,900

2

12

votes

2

answers

354

views

How much energy does a small spider expend per day just waiting for its web to vibrate?

entomology metabolism biophysics arachnology energy-metabolism

Apr 1 '20 at 21:51 DwayneDeSouza 8,105

2

11

votes

1

answer

2k

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Will proper autoclave treatment really "inactivate all resistant bacterial spores"? If not, how widespread are autoclave-resistant bacterial spores?

bacteriology heat sterilisation autoclave

Aug 5 at 3:06 bob1 4,769

1

10

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2

answers

5k

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How exactly does alcohol solution kill or neutralize viruses?

virology epidemiology sterilisation

Mar 31 '20 at 21:54 CommunityBot 1

10

votes

1

answer

758

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What kind of tree is this — why do its huge leaves change shape and "grow fingers"?

species-identification trees morphology

Dec 11 '17 at 18:26 CommunityBot 1

9

votes

1

answer

254

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Identify this unusually-shaped, orange-colored fruit that grows in pairs?

species-identification botany fruit

Sep 19 '19 at 17:16 Bryan Hanson 1,361

9

votes

1

answer

269

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What are the sources of molecular hydrogen in human breath?

biochemistry respiration breathing

Mar 25 '19 at 11:30 CommunityBot 1

8

votes

0

answers

107

views

Is it known how some heat-resistance Bacillus spores repair their DNA after having been heated to 420 °C?

bacteriology heat extremophiles

Jul 29 at 22:55 uhoh 4,900

8

votes

2

answers

452

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Why do OX5034 GM mosquitos require the presence of tetracycline to survive? What does the drug do in this case?

molecular-biology reproduction infectious-diseases pest-control

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8

votes

2

answers

401

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behaviour gastropod

Mar 11 '19 at 15:22 Triceratops 906

1

7

votes

1

answer

828

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Novel bacterial strains of bacteria first isolated on the International Space Station, did the space environment lead to these genetic changes?

genetics bacteriology species selection artificial-selection

May 12 at 0:18 bob1 4,769

7

votes

1

answer

203

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How do snakes determine the direction of prey from their thermal infrared sensing pit organs?

senses herpetology predation

Dec 30 at 18:59 Bryan Krause♦ 31.5k

7

votes

1

answer

141

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Why exactly are the reflections of sunlight in this dragonfly's eye hexagonal?

entomology eyes anatomy morphology

Sep 24 '20 at 8:36 DwayneDeSouza 8,105

7

votes

4

answers

319

views

DNA as a digital storage medium; sequences algorithmically avoided for safety reasons (or should be)?

biochemistry dna dna-sequencing safety

Apr 28 '20 at 14:27 Alex Reynolds 5,476

7

votes

1

answer

455

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What kind of big bird is this seen walking around Taipei?

species-identification ornithology

Jun 14 '18 at 14:12 Johnny 1,439

7

votes

1

answer

951

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Are four-leaf clovers mutations, developmental errors, or something more complicated?

genetics botany mutations variant

Mar 31 '17 at 14:46 uhoh 4,900

6

votes

0

answers

240

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Could being exposed to excess UV in the arctic lead to a human eye color change? If so, what is the mechanism?

human-eye uv melanin

Jan 19 '20 at 6:23 Kathy B 1

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6

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2

answers

9k

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physiology hearing human-ear

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231

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molecular-biology radiation telomere

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6

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1

answer

148

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Is this a hawk, or an eagle?

species-identification ornithology

Jul 4 '18 at 13:51 CommunityBot 1

1

6

votes

1

answer

105

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Don't understand figures in this citizen-science mosquito ID project

entomology statistics data infectious-diseases

May 19 '17 at 0:15 CommunityBot 1

3

6

votes

2

answers

422

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Bacteria trapped in crystal inclusions found 'alive' after 50,000 years - what were they eating all that time?

biochemistry bacteriology chemosynthesis

Feb 25 '17 at 9:41 another 'Homo sapien' 13.9k

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0

answers

65

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Has this 2018 report of nematodes frozen for 30 to 40,000 years been confirmed? Has Carbon 14 dating confirmed their age?

environment cryonics nematode

Aug 9 at 23:29 uhoh 4,900

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111 Questions

Is C. elegans always observed with precisely 302 neurons? Are there ever individual viable exceptions?

Why "Having chlorophyll without photosynthesis is actually very dangerous" and "like living with a bomb"?

Bird brain-eating Mantis - how does it crack the skull?

How did the largest/longest dinosaurs hold their head and necks up?

Identify this giant green moth(?) with great taste?

Are two colors (red + blue) necessary for LED grow lights, or would either color be sufficient?

Can plants produce oxygen at night (without light)?

Are bleach solutions still routinely used in biochemistry laboratories to rid surfaces of bacteria, viruses, certain enzymes, and nucleic acids?

How much energy does a small spider expend per day just waiting for its web to vibrate?

Will proper autoclave treatment really "inactivate all resistant bacterial spores"? If not, how widespread are autoclave-resistant bacterial spores?

How exactly does alcohol solution kill or neutralize viruses?

What kind of tree is this — why do its huge leaves change shape and "grow fingers"?

Identify this unusually-shaped, orange-colored fruit that grows in pairs?

What are the sources of molecular hydrogen in human breath?

Is it known how some heat-resistance Bacillus spores repair their DNA after having been heated to 420 °C?

Why do OX5034 GM mosquitos require the presence of tetracycline to survive? What does the drug do in this case?

What are these four large snails doing?

Novel bacterial strains of bacteria first isolated on the International Space Station, did the space environment lead to these genetic changes?

How do snakes determine the direction of prey from their thermal infrared sensing pit organs?

Why exactly are the reflections of sunlight in this dragonfly's eye hexagonal?

DNA as a digital storage medium; sequences algorithmically avoided for safety reasons (or should be)?

What kind of big bird is this seen walking around Taipei?

Are four-leaf clovers mutations, developmental errors, or something more complicated?

Could being exposed to excess UV in the arctic lead to a human eye color change? If so, what is the mechanism?

What causes "ear rumbling"?

Why did they expect Astronaut Scott Kelley's telomere shortening to accelerate? (they got longer!)

Is this a hawk, or an eagle?

Don't understand figures in this citizen-science mosquito ID project

Bacteria trapped in crystal inclusions found 'alive' after 50,000 years - what were they eating all that time?

Has this 2018 report of nematodes frozen for 30 to 40,000 years been confirmed? Has Carbon 14 dating confirmed their age?