Download App

Why Do We Fall — Science STD 9 — Question

Gujarat BoardEnglish MediumSTD 9ScienceWhy Do We Fall3 Marks
Question

Briefly describe:

Infectious agents.

✓

Answer

An infectious agent is something that infiltrates another living thing, like you. When an infectious agent hitches a ride, you have officially become an infected host.

There are four main classes of infectious agents:

  1. Bacteria.
  2. Viruses.
  3. Fungi.
  4. Parasites.

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 "Que-Ans (Each of 3 Mark )" from Why Do We Fall→Why Do We Fall — all question types→Science STD 9 question papers→Gujarat Board STD 9 question papers→Gujarat Board question paper generator→

Similar questions

A $\frac{1}{2}\text{kg}$ sheet of tin sinks in water but if the same sheet is converted into a box or boat, it floats. Why?
→
Bromine and air take about 15 minutes to diffuse completely but bromine diffuses into a vacuum very rapidly. Why is this so?
→

Define green revolution, what are the common objectives of crop improvement?

→
What all treatments grains are subjected to under prophylactic treatment?
→
Give reason for the following:
In most of the cases, we cannot see the vibrations of a sound producing object with our eyes.
→
Can we apply Newton’s third law to the gravitational force? Explain your answer.
→

Give a short account of structure and function of adipose tissue.

→
Write the help of a labelled diagram describe the structure of a chloroplast.
→

Write down four main characters of Pteriodophyta. Give two examples.

→

Name the following:

  1. Smallest cell organelle.
  2. Largest cell organelle.
  3. ER studded with ribosomes.
  4. Functional segments of the DNA molecule.
→