Download App

STD 12 - 3. reproductive health — BIOLOGY STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 3. reproductive health1 Mark
MCQ
Birth rate is directly proportional to
  • A
    Good food
  • ✓
    Illiteracy
  • C
    High social status
  • D
    Age of marriage
✓

Answer

Correct option: B.
Illiteracy
b
It's Obvious

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "M.C.Q [1M]" from STD 12 - 3. reproductive health→STD 12 - 3. reproductive health — all question types→BIOLOGY STD 12 Science question papers→Bihar Board STD 12 Science question papers→Bihar Board question paper generator→

Similar questions

Match the following columns and select the correct option 

Column - $I$ Column - $II$
$(i)$ Typhoid

$(a)$ Haemophilus influenzae
$(ii)$ Malaria  $(b)$ Wuchereria bancrofti
$(iii)$ Pneumonia  $(c)$ Plasmodium vivax
$(iv)$ Filariasis  $(d)$ Salmonella typhi
→
A human gene product can be produced by genetically engineered bacteria. This is possible, because the:
→
Extra-embryonic membranes of the mammalian embryo are derived from:
→
The antibodies are formed in
→
In DNA replication, the primer is:
→
Which of the following organisms not fix atmospheric nitrogen?
→
Identify the incorrect statement.

$(i)$ Bacillus thuringiensis are available in sachets as dried spores which are mixed with kerosine and sprayed on to vulnerable plants

$(ii)$ B. thuringiensis are used to control butterfly caterpillars, but leave other insects unharmed

$(iii) $ The toxin of B. thuringiensis is released in the blood of larvae and the larvae get killed

$(iv)$ By the development of methods of genetic engineering B. thuringiensis toxin genes have been introduced

→
$A$ doctor; while operating on an $H I V^{* i i}$ patient accidently cut himself with a scalpel. He comes to you, suspecting himself to have contacted the virus. Which test will you advise him to rule out/confirm his suspicion?
→
$I.$ Biochemical adaptation are seen in organisms living in great depth of the ocean to face crushing pressure

$II.$ Allen's rule is explain mammals living in colder climates

$III.$ Altitude sickness is caused because of body not getting enough oxygen due to low atmospheric pressure at high altitude

$IV.$ Desert lizards lack behavioural means to manage to their body temperature

Choose the correct option for above adaptations

→
The vegetative cell is
→