|
Fact |
Category |
Date |
|
46 |
Blood vessels that carry blood back toward the heart are called veins. |
Science > Biology |
06/25/08 |
|
47 |
Blood vessels that carry blood away from the heart are called arteries. |
Science > Biology |
06/20/08 |
|
48 |
Biology is the science of life and living organisms. |
Science > Biology |
06/18/08 |
|
49 |
An octopus has three hearts. |
Science > Biology |
06/15/08 |
|
50 |
A mammal that lays eggs is called a monotreme. |
Science > Biology |
06/04/08 |
|
51 |
Thymine is a nitrogenous base found in DNA but not in RNA. |
Science > Biology |
05/19/08 |
|
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