(a) List two sexually transmitted disease in each of the following cases:

(i) Bacterial infections

(ii) Viral infections

(b) How may the spread of such diseases be prevented?

Solution

Sexually transmitted disease in each of the following case is:

(i) Bacterial infections are Syphilis, Gonorrhoea.

(ii) Viral infections: AIDS, warts.

(b) Sexually transmitted disease can be prevented by using contraceptive measures like a condom, avoiding sex with multiple partners or infected person.

Some More Questions From Our Environment Chapter

How are variations important?

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Our Environment

(a) List two sexually transmitted disease in each of the following cases:

(i) Bacterial infections

(ii) Viral infections

(b) How may the spread of such diseases be prevented?

Some More Questions From Our Environment Chapter

How are variations important?

What is the importance of DNA copying in reproduction?

Why is variation beneficial to the species but not necessarily for the individual?

Name the methods of asexual reproduction.

Name two organisms which reproduce by (a) budding (6) fragmentation and (c) spore formation.

Why cannot all multicellular organisms divide cell-by-cell like Spirogyra?

How is the problem of dobling of the amount of DNA solved ?

Write names of five plants in which stem is used to produce a new plant.

Give one example of plant which uses leaves for propagation. Draw propagation organ.

List four methods of vegetative propagation which are exploited by man in propagating plants in garden and nurseries.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

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For Daily Free Study Material Join wiredfaculty

Our Environment

(a) List two sexually transmitted disease in each of the following cases: (i) Bacterial infections (ii) Viral infections (b) How may the spread of such diseases be prevented?

Some More Questions From Our Environment Chapter

How are variations important?

What is the importance of DNA copying in reproduction?

Why is variation beneficial to the species but not necessarily for the individual?

Name the methods of asexual reproduction.

Name two organisms which reproduce by (a) budding (6) fragmentation and (c) spore formation.

Why cannot all multicellular organisms divide cell-by-cell like Spirogyra?

How is the problem of dobling of the amount of DNA solved ?

Write names of five plants in which stem is used to produce a new plant.

Give one example of plant which uses leaves for propagation. Draw propagation organ.

List four methods of vegetative propagation which are exploited by man in propagating plants in garden and nurseries.

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation

(a) List two sexually transmitted disease in each of the following cases:

(i) Bacterial infections

(ii) Viral infections

(b) How may the spread of such diseases be prevented?