Download App

STD 12 - 8. microbes in human welfare — Biology STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceBiologySTD 12 - 8. microbes in human welfare1 Mark
MCQ
The phenomenon of using a predator for controlling a pest is
  • ✓
    Biological control
  • B
    Genetic engineering
  • C
    Artificial control
  • D
    Confusion technique
✓

Answer

Correct option: A.
Biological control
a
(a)Predators is example of biological control and lady bug (lady bird beetle) and praying mantis can control scale insect or aphid pests of vegetables.

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 STD 12 - 8. microbes in human welfare→STD 12 - 8. microbes in human welfare — all question types→Biology STD 12 Science question papers→CBSE Board STD 12 Science question papers→CBSE Board question paper generator→

Similar questions

Which of the following principles are used to prevent $STD$ infection ?

       $(i)$ Avoid sex with unknown partners

       $(ii)$ Use condoms during coitus

       $(iii)$ Blood transfusion

       $(iv)$ All of these

→
Enzyme which works by cutting DNA into segments:
→
The lowest capacity of cranium was found in the
→
Extranuclear inheritance occurs in.
→
Biotic potential is
→
Sun is not a source of energy is this ecosystem.
→
While analysing the $\text{DNA}$ of an organism a total number of $5386$ nucleotides were found out of which the proportion of different bases were: Adenine $: 29\%,$ Guanine $: 17\%,$ Cytosine $: 32\%,$ Thymine $: 17\%.$ Considering the Chargaff’s rule it can be concluded that:
→
AlDS from India was reported in
→
Foetal sex can be determined by examining cells from the amniotic fluid by looking for
→
The number of chromosomes in the shoot tip cells of a maize plant is $20.$ The number of chromosomes in the microspore mother cells of the same plant shall be:
→