Identify the following figure and select the correct option
Chara
Marchantia
Sweet potato
Ophioglossum
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.
Which of the following are the carriers of male gametes in seed plants ?
Monoecious plants means.
Formation of a sporophyte from gametophyte and vice versa is termed as
A haploid parents produce gametes by...... division.