Home
Class 12
BIOLOGY
ive reasons for the following: (a) The...

ive reasons for the following:
(a) The human testes are located outside the abdominal cavity.
(b) Some organisms like honey-bees are called parthenogenetic animals.

Text Solution

Verified by Experts

(a) The human testes are located outside the abdominal cavity. A pair of testes i: situated outside the abdominal cavity in a sac of skin called the scrotum. Scrotum keeps the testes at a temperature 2-2.5°C lower than the internal body temperature, which is necessary for the synthesis of sperms.
(b) The phenomenon of development of female gamete directly into an individual without fertilisation is called Parthenogenesis e.g. rotifers, honey bees, lizards and birds.
Promotional Banner

Topper's Solved these Questions

  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise SET -I Section -C|10 Videos
  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise SET -I Section -D|6 Videos
  • XII BOARDS

    XII BOARDS PREVIOUS YEAR|Exercise SET -I Section -A|8 Videos
  • SAMPLE PAPER 2019

    XII BOARDS PREVIOUS YEAR|Exercise Section E Part B|3 Videos

Similar Questions

Explore conceptually related problems

Why are the human testes located outside the abdominal cavity ? Name the pouch in the which they are present.

Testes are located outside the abdominal cavity and suspended in a pouch known as _______________ .

Why the testes in human are situated outside the abdominal cavity within a pouch called scrotum?

The testes in humans are situated outside the abdominal cavity inside a pouch called scortum. The purpose served is for

The testes in humans are situated outside the abdominal cavity inside a pouch called scrotum. The purpose served is for

Why the testes in human beings and mammals are situated outside the abdominal cavity within a pouch called scrotum ?