Download App

Microbes in Human Welfare — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYMicrobes in Human Welfare1 Mark
MCQ
The phenomenon of using a predator for controlling a pest is:
  • A
    Biological control
  • B
    Genetic engineering
  • C
    Artificial control
  • D
    Confusion technique
✓

Answer

  1. Biological control

Explanation:

Biological control is a method to control pest by using living microorganisms or its product. It is used as natural enemies like the predators, parasites, pathogens, and competitors to suppress and maintain populations of a target pest species (insects, mites, weeds, plant pathogens, and other pest organisms). This is the most widely used method in today's world for the control of pests. 

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

Milk is converted into curd by:
→
Stirred-tank bioreactors have advantages over shake flasks because they
→
Rajaji national park is located in:
→
The most accepted line of descent in human evolution is:
→
People who have migrated from the planes to an area adjoining Rohtang Pass about six months back
→
Which of the following is second order IUDs?
→
Pithecanthropus erectus fossil was found in
→
Select the correct pair
Column $- I$ Column $- II$
$(A)$ Physiological barrier $(1)$ Skin
$(B)$ Cellular barrier $(2)$ Macrophages
$(C)$ Physical barriers $(3)$ interferons
$(D)$ Cytokine barriers $(4)$ Tears
  $(5)$ Mucus
→
If in a pond there are $20$ lotus plants of last year and through reproduction $8$ new plants are added. Then the birth rate is
→
Given below are some stages of human evolution.

Arrange them in correct sequence. (Past to Recent)

$A$. Homo habilis $B$. Homo sapiens

$C$. Homo neanderthalensis $D$. Homo erectus

Choose the correct sequence of human evolution from the options given below:

→