The World's Population Has Changed Since 1900 from Under 2

question 3

Multiple Choice

The world's population has changed since 1900 from under 2 billion to currently

• A) 5 billion
• B) 16 billion
• C) 7.5 billion
• D) 1 billion

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Definitions:

Seminiferous Tubules

Narrow, coiled tubules within the testes where spermatozoa are produced.

Inguinal Canal

An anatomical passage in the lower anterior abdominal wall, which in men allows the spermatic cord and in women the round ligament of the uterus to pass.

Testes

The male reproductive glands responsible for producing sperm and male sex hormones, particularly testosterone.

Scrotum

The sac of skin housing the testicles, regulating their temperature for sperm production.