What is Hartig net?

Important Questions on Microbes in Human Welfare in Our Everyday Life

EASY

9th West Bengal Board

IMPORTANT

A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 14 - Microbes in Human Welfare in Our Everyday Life>EXERCISE>Q 1

Mention some examples in connection with biological control.

EASY

9th West Bengal Board

IMPORTANT

A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 14 - Microbes in Human Welfare in Our Everyday Life>EXERCISE>Q 2

Define bio-fertilisers.

EASY

9th West Bengal Board

IMPORTANT

A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 14 - Microbes in Human Welfare in Our Everyday Life>EXERCISE>Q 3

What are microphos?

EASY

9th West Bengal Board

IMPORTANT

A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 14 - Microbes in Human Welfare in Our Everyday Life>EXERCISE>Q 4

Write in brief about Azolla-Anabaena symbiosis.

EASY

9th West Bengal Board

IMPORTANT

A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 14 - Microbes in Human Welfare in Our Everyday Life>EXERCISE>Q 5

What do you mean by vesicular-arbuscular mycorrhizal?

MEDIUM

9th West Bengal Board

IMPORTANT

A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 14 - Microbes in Human Welfare in Our Everyday Life>EXERCISE>Q 6

What is leghaemoglobin? Mention the role of Rhizobium in nitrogen fixation.

EASY

9th West Bengal Board

IMPORTANT

A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 14 - Microbes in Human Welfare in Our Everyday Life>EXERCISE>Q 7

Mention the importance of bio-fertilisers.

EASY

9th West Bengal Board

IMPORTANT

A TEXT BOOK OF LIFE SCIENCE AND ENVIRONMENT CLASS 9>Chapter 14 - Microbes in Human Welfare in Our Everyday Life>EXERCISE>Q 8

Write about ectotrophic mycorrhiza.