Biology is the study of life and living organisms. You might not think much about biology now, but these biology facts about cells, DNA, bacteria, and more are bound to grow on you.
Your brain has approximately 100 billion nerve cells, or neurons.
There are nearly 74 km worth of nerves in the average human body.
Microbiologists have estimated that a random handful of dirt can contain anywhere from 3 million to 50 billion microscopic organisms.
Been thinking a lot today? Believe it or not, the human brain is actually much more active at night than during the day.
Your nose can remember and recognize about 50,000 different scents.
Babies are born with 300 bones. As we grow, some of our bones fuse together, and, by the time we're adults, we only have 206!
If a person's DNA was stretched into a string, it would stretch from the sun to Pluto and back—17 times.
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