Juvenile and adult plants are
Morphologically different
Physiologically same
$(a)$ and $(b)$ both
None of the above
Which of the following statements are correct regarding female reproductive cycle?
$A$. In non-primate mammals cyclical changes during reproduction are called oestrus cycle.
$B$. First menstrual cycle begins at puberty and is called menopause.
$C$. Lack of menstruation may be indicative of pregnancy.
$D$. Cyclic menstruation extends between menarche and menopause.
Choose the most appropriate answer from the options given below.
In which of the following meiosis does not seen?
Identify figure :
In organisms, further developments of the zygote depends on.
Identify the following figure and select the correct option