Download App

Improvement in Food Resources — Science STD 9 — Question

CBSE BoardEnglish MediumSTD 9ScienceImprovement in Food Resources2 Marks
Question
What is biological control?
✓

Answer

Biological control is a method of controlling pests such as insects, mites, weeds and plant diseases using other organisms. It relies on predation, parasitism, herbivory, or other natural mechanisms, but typically it also involves an active human management role.

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 "Answer the questions.[Bio-2M]" from Improvement in Food Resources→Improvement in Food Resources — all question types→Science STD 9 question papers→CBSE Board STD 9 question papers→CBSE Board question paper generator→

Similar questions

Explain how sieve tubes manage to be living?

→

Explain the direction of air movement during the day and night in coastal areas.

→
Why are lysosomes also known as “scavengers of the cells”?
→
What does the term plasmolysed mean when used to describe a cell?
→
How does chemical nature of the soil change due to continued use of chemical fertilizers?
→

Distinguish between farmyard manure and compost manure.

→

Distinguish between the following pairs in one or two sentences for each:

Tendon and ligament.

→
Why does viruses form an exception to cell theory?
→
Name the following:
  1. Multinucleate muscle fibre.
  2. Spindle shape muscle fibre.
→

What are the source of “concentrates” given in a cattle feed?

→