Science · Textbook solutions

How do Organisms Reproduce?

Every solved example, exercise, and miscellaneous question — in the order the textbook teaches them. · 23 questions

7.1 Do Organisms Create Exact Copies of Themselves?

2 q

Practice · 2

IT 7.1 Q1 $What is the importance of DNA copying in reproduction?$
IT 7.1 Q2 $Why is variation beneficial to the species but not necessarily for the individual?$

5 q

Practice · 5

IT 7.2 Q1 $How does binary fission differ from multiple fission?$
IT 7.2 Q2 $How will an organism be benefited if it reproduces through spores?$
IT 7.2 Q3 $Can you think of reasons why more complex organisms cannot give rise to new individuals through regeneration?$
IT 7.2 Q4 $Why is vegetative propagation practised for growing some types of plants?$
IT 7.2 Q5 $Why is DNA copying an essential part of the process of reproduction?$

5 q

Practice · 5

IT 7.3 Q1 $How is the process of pollination different from fertilisation?$
IT 7.3 Q2 $What is the role of the seminal vesicles and the prostate gland?$
IT 7.3 Q3 $What are the changes seen in girls at the time of puberty?$
IT 7.3 Q4 $How does the embryo get nourishment inside the mother's body?$
IT 7.3 Q5 $If a woman is using a copper-T, will it help in protecting her from sexually transmitted diseases?$

11 q

Ex 7 Q1 $Asexual reproduction takes place through budding in$
1. A. $Amoeba$
2. B. $Yeast$
3. C. $Plasmodium$
4. D. $Leishmania$
Ex 7 Q2 $Which of the following is not a part of the female reproductive system in human beings?$
1. A. $Ovary$
2. B. $Uterus$
3. C. $Vas deferens$
4. D. $Fallopian tube$
Ex 7 Q3 $The anther contains$
1. A. $sepals$
2. B. $ovules$
3. C. $pistil$
4. D. $pollen grains$
Ex 7 Q4 $What are the advantages of sexual reproduction over asexual reproduction?$
Ex 7 Q5 $What are the functions performed by the testis in human beings?$
Ex 7 Q6 $Why does menstruation occur?$
Ex 7 Q7 $Draw a labelled diagram of the longitudinal section of a flower.$
Ex 7 Q8 $What are the different methods of contraception?$
Ex 7 Q9 $How are the modes for reproduction different in unicellular and multicellular organisms?$
Ex 7 Q10 $How does reproduction help in providing stability to populations of species?$
Ex 7 Q11 $What could be the reasons for adopting contraceptive methods?$