MCQ
Onset of menstruation is due to:
- AFall in level of progesterone
- BIncrease in level of progesterone
- CIncrease in level of FSH
- DNone of these
Explanation:
The uterine lining dies due to the deficiency or reduced level of progesterone in blood and is sloughed off.
Blood vessels rupture, causing bleeding.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
$a \quad\;b \quad\;c \quad\;d$

| $(a)$ Lactobacillus | $(i)$ Cheese |
| $(b)$ Saccharomyces cerevishe | $(ii)$ Curd |
| $(c)$ Aspergillus niger | $(iii)$ Citric Acid |
| $(d)$ Acetobacter acet $\quad$ | $(iv)$ Bread |
| $(v)$ Acetic Acid |
Select the correct option.
$(a)\quad (b)\quad (c)\quad (d)$
$(I)$ Ethanol is produced by $...a...$
$(II)$ Large scale production of beverages inindustries is done in very large vesselscalled $ ...b...$
$(III)$ Penicillin is discovered by $...C...$
$(IV)$ LAB checks disease causing microbes in $...d...$ $a$ to $d$ in the above statements refers to
$(a)$ Caspian $(b)$ Rusiya
$(c)$ Bali $(d)$ Quagga