This topic contains a solution. Click here to go to the answer
|
|
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
If you could remove all of your skin, it would weigh up to 5 pounds.
Did you know?
The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.
Did you know?
About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.
Did you know?
The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
![The nitrogen cycle. Numbers represent fluxes as 1012 g N per year (data from Schlesinger 1991, after](https://biology-forums.com/gallery/47/medium_33_17_02_12_7_02_17_2038129.jpeg)
![Frederick Douglass, having escaped from slavery in 1836, attracted large audiences as an antislavery](https://biology-forums.com/gallery/47/medium_375348_18_08_15_9_36_29_223002244.jpeg)