The mammal heart

By |2022-09-15T12:40:36+02:00January 24th, 2023|Notes, O Level Science Notes, Ordinary Level Notes|

The structure of the human heart.

The structure of the human heart. ZIMSEC O Level Combined Science Notes: The mammal heart
  • Is made up of muscle which contracts continuously throughout the mammal’s life.
  • The number of contractions differ from mammal to mammal
  • In elephants it contracts about 25 times/minute
  • In humans it contracts about 70-80 […]

    Quick NetOne, Econet, And Telecel Airtime Recharge