This topic contains a solution. Click here to go to the answer
|
|
Did you know?
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
Did you know?
The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.
Did you know?
Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
Did you know?
Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
![Changes in boreal forest composition along a chronosequence in Quebec. Dates refer to the year of th](https://biology-forums.com/gallery/47/medium_33_17_02_12_6_53_46_20131094.jpeg)
![(a) Feeding by bear on salmon results in large allochthonous inputs of nutrients into (b) the forest](https://biology-forums.com/gallery/47/medium_33_17_02_12_7_02_16_20341303.jpeg)