This topic contains a solution. Click here to go to the answer
|
|
Did you know?
Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.
Did you know?
Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
Did you know?
The average office desk has 400 times more bacteria on it than a toilet.
Did you know?
Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.
Did you know?
The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
![Acromegaly. Acromegaly is a metabolic disorder in which excessive amounts of growth hormone are secr](https://biology-forums.com/gallery/47/medium_14755_14_10_12_6_35_05_93811190.jpeg)
![Chimpanzees live in complex kin groups in which lifelong bonds and individual personalities play key](https://biology-forums.com/gallery/47/medium_275816_26_01_15_5_23_40_20415653.jpeg)