Download App

Microbes in Human Welfare — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYMicrobes in Human Welfare1 Mark
MCQ
Which of the following is wrongly matched?
  • A
    Humus $-$ Abiotic component
  • ✓
    Rhizobium $-$ Free$-$ living nitrogen fixer
  • C
    Shorea robusta $-$ Tropical deciduous forest
  • D
    Cedrus deodara $-$ Coniferous forest
✓

Answer

Correct option: B.
Rhizobium $-$ Free$-$ living nitrogen fixer

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 (1 Marks)" from Microbes in Human Welfare→Microbes in Human Welfare — all question types→BIOLOGY STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

From the sexually transmitted diseases mentioned below identity the one which does not specifically affect the sex organs
→
Vegetative propagation in Pistia occurs by:
→
Fat is present in large quantities in the tissues of which of the following
→
Which of the following does not affect ozone layer?
→
Which of the following generally used for induced mutagenesis in crop plants
→
Match the following list of bacteria and their commercially important products:
 
Bacterium
 
Product
$i.$
Aspergillus niger
 $a.$
Lactic acid
$ii.$
Acetobacter aceti
 $b.$
Butyric acid
$iii.$
Clostridium butylicum
 $c.$
Acetic acid
$iv.$
Lactobacillus
 $d.$
Citric acid
Choose the correct match:
→
Assertion: Histamine is related with allergic and inflammatory reactions.

Reason: Histamine is a vasodilator.

→
Biodiversity describes the study of diversity:
→
Number of death and birth in the last stage of plateau growth curve of a population will be
→
For two statements are given$-$one labelled Assertion and the other labelled Reason. Select the correct answer to these questions from the codes $(a), (b), (c)$ and $(d)$ as given below.
Assertion: Periodic abstinence is a natural method where couples abstain from coitus.
Reason: Coitus from day $5-\text{lO}$ should be avoided because this is the time of ovulation.
→