Onset of menstruation and stoppage of it are called _____ and _____ respectively.
Menstruation and menarch
Menstruation and menopause
Menopause and menarche
Match the following.
1. Pouched mammals - A- Whale & Bear2. Placental mammals - B- Echidna and platypus3. Egg laying mammals - C- Tasmanian wolf and Kangaroo
1-C, 2-A, 3-B
1-C, 2- B, 2, 3- A
1- A, 2-B, 3 - C
1- B, 2- C, 3- A
Features of asexual reproduction are
Uniparental, gametes are formed, fertilization absent
Uniparental, gametes not formed, fertilization occurs
Biparental, gametes formed, fertilization absent
Uniparental, gametes not formed, fertilisation absent
What is true about voice in adoloscent boys and girls.
High pitched voice in girls and low pitched in boys
Low pitched voice in girls and high poitched in boys
Both boys and girls have same pitch in their voice
The pitch of the voice does not change during adolescence but changes with individuals
The gestation period in human beings.
30 weeks
35 weeks
40 weeks
45 weeks
When egg and sperm is fertilized in lab outside the body of the mother, such a fertilization is called.
External fertilisation
In vitro fertilisation
Ex situ fertilisation
In situ fertilisation
Eggs of _________ and _______ have hard covering around them made of calcareous shell.
Fishes and amphibians
Birds and mammals
Fishes and fertiles
Reptiles and birds
Which is not a feature during pregnancy.
Thickening of uterine lining
Production of hormone progesterone
Development of placenta
Ovulation and menstruation
