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304 Answers

Votes Activity Newest
4
The 4-chambered heart
Mar 7 '18 at 18:16
4
Why cooking make foods , e.g rice, vegetable etc, soft?
Aug 22 '17 at 14:04
4
Why doesn't surgical steel cause inflammation?
Jan 31 '18 at 21:41
4
What are the animals in these pictures?
Jan 19 '18 at 6:37
4
Identify this tuber like object found on beach
Oct 29 '17 at 16:46
4
How do we know we have to use the mouth for eating and drinking?
Oct 15 '17 at 2:04
4
Are Richard Lynn's estimates of African IQ inherently innacurate on the basis that most Africans aren't mentally retarded?
Sep 22 '17 at 13:50
4
What is the correct classification of population groups of homo sapiens?
Sep 2 '17 at 5:29
4
Why similarities among organisms led scientists to believe that organisms are evolved?
Jul 17 '17 at 4:49
4
What's the smallest animal with hemoglobin running in its veins?
Jul 20 '17 at 15:17
4
Once food has been properly cooked is it absolutely safe?
Jul 18 '17 at 14:39
4
Does male or female DNA contain more information?
Jun 24 '17 at 14:20
4
Why do turtles ride on alligators?
Jun 18 '17 at 15:02
4
Why doesn't life produce diamond, graphene, nanotubes, etc? Could it?
Mar 20 '17 at 4:30
4
Explanation for hyenas asymmetric legs length
Mar 20 '17 at 15:07
4
Male Parenting from Evolution point
Dec 29 '16 at 5:33
4
What is the smallest difference in light wavelength that the human eye can detect?
Dec 19 '16 at 16:02
3
How Does The Presence of Livestock on Land Increase Net Methane Production?
Jul 29 at 18:06
3
Is there a way tell apart dinosaurs from similar extinct reptiles?
Jul 21 '19 at 20:56
3
What is violet color?
Jun 22 '19 at 13:20
3
Does the lack of “mirror life” tell us anything about abiogenesis?
Jun 11 '19 at 19:52
3
What are the bare minimum nutrients required to survive as a human?
May 20 '19 at 14:20
3
What allows grass eaters to digest cellulose?
May 4 '19 at 16:58
3
If bacterial resistance randomly occur, then why limit broad-spectrum antibiotic use?
Mar 15 '19 at 20:22
3
What is the philosophical definition of life?
Mar 16 '17 at 15:22
3
Evolution question on speciation? Really confusing!
Feb 11 '19 at 21:59
3
How can biologists rule out multiple early organisms that went through conjugation?
Sep 23 '18 at 0:24
3
Why do ADULTS need protein in their diet, if they are not growing?
Sep 11 '18 at 18:18
3
Paper saying that humans and animals are (mostly) the same age
Jul 24 '18 at 5:06
3
Why are there not two trees of life?
Jun 23 '18 at 3:48
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