MCQs for NCERT Class 10 Science Chapter 8 How do the Organisms Reproduce

Please refer to the MCQ Questions for Class 10 Science Chapter 8 How do the Organisms Reproduce with Answers. The following How do the Organisms Reproduce Class 10 Science MCQ Questions have been designed based on the current academic year syllabus and examination guidelines for Class 10. Our faculty has designed MCQ Questions for Class 10 Science with Answers for all chapters as per your NCERT Class 10 Science book.

How do the Organisms Reproduce Class 10 MCQ Questions with Answers

Please see below How do the Organisms Reproduce Class 10 Science MCQ Questions, solve the questions and compare your answers with the solutions provided below.

Question1. Offspring formed by asexual method of reproduction have greater similarity among themselves because:     
(i) Asexual reproduction involves only one parent
(ii) Asexual reproduction does not involve gametes
(iii) Asexual reproduction occurs before sexual reproduction
(iv) Asexual reproduction occurs after sexual reproduction
(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii) and (iv)
(d) (iii) and (iv)

Question. Which one of the following best describes the function of the umbilical cord? 
(a) feeds the embryo with digested substances
(b) conveys nutrients and wastes to and from the embryo respectively
(c) removes waste matter from the embryo to the mother’s blood
(d) supplies oxygenated blood from the mother to the embryo

Question. Which among the following diseases is not sexually transmitted? 
(a) Syphillis
(b) Hepatitis
(c) HIV-AIDS
(d) Gonorrhoea

Question. During adolescence, several changes occur in the human body. Mark one change from the following associated with sexual maturation in boys: 
(a) loss of milk teeth
(b) increase in height
(c) cracking of voice
(d) weight gain

Question. Which among the following statements are true for sexual reproduction in flowering plants?   
(i) It requires two types of gametes.
(ii) Fertilisation is a compulsory event.
(iii) It always results in the formation of zygote.
(iv) Offsprings formed are clones.
(a) (i) and (iv)
(b) (i), (ii) and (iv)
(c) (i), (ii) and (iii)
(d) (i), (ii) and (iii)

Question. The number of chromosomes in parents and offsprings of a particular species remains constant due to:   
(a) doubling of chromosomes after zygote formation.
(b) halving of chromosomes during gamete formation.
(c) doubling of chromosomes after gamete formation.
(d) halving of chromosomes after gamete formation.

Question. A student observes the following stage of binary fission in Amoeba in a focussed slide under a microscope. Select the correct observation in this regard. 
(a) First stage of binary fission
(b) Final stage of binary fission
(c) That stage of binary fission in which the cytoplasm divides but the nucleus does not
(d) That stage of binary fission in which the nucleus divides but the cytoplasm does not

Question. The ability of a cell to divide into several cells during reproduction in Plasmodium is called:
(a) Budding
(b) Reduction division
(c) Binary fission
(d) Multiple fission

Question. Choose the correct statement(s) on budding in yeast from the following:     
I. A parent cell divides into two or more daughter cells and here the parent identity is lost.
II. In this the elongated nucleus divides to form two or more daughter nuclei.
III. A bud arises from a particular region on a parent body.
IV. After detaching from the parent body the bud grows into a new independent individual.
(a) I only
(b) III only
(c) II and III only
(d) III and IV only

Question. The number of chromosomes in parents and offsprings of a particular species remains constant due to:   
(a) Doubling of chromosomes after zygote formation
(b) Halving of chromosomes during gamete formation
(c) Doubling of chromosomes after gamete formation
(d) Halving of chromosomes after gamete formation

Question. Select the correct statements for the process of budding in yeast: 
(i) A bud arises from a particular region on a parent body.
(ii) A parent cell divides into two daughter cells, here the parent identity is lost.
(iii) Before detaching from the parent body a bud may form another bud.
(iv) A bud when detaches from the parent body grows into a new individual.
(a) (i), (ii) and (iii)
(b) (ii), (iii) and (iv)
(c) (iii), (iv) and (i)
(d) (iv), (i) and (ii)

Question. factors responsible for the rapid spread of bread mould on slices of bread are:   
(i) Large number of spores
(ii) Availability of moisture and nutrients in bread
(iii) Presence of tubular branched hyphae
(iv) Formation of round shaped sporangia
(a) (i) and (iii)
(b) (ii) and (iv)
(c) (i) and (ii)
(d) (iii) and (iv)

Question. Slides of binary fission in Amoeba and budding in yeast were given for observation to a group of students. Some of the observations reported by the group are given below:   
(a) Cytokinesis was observed in the yeast cell.
(b) A chain of buds were observed in Amoeba.
(c) Single cell of Amoeba and single cell of yeast were undergoing binary fission and budding respectively.
(d) Elongated nucleus was dividing to form two daughter nuclei in Amoeba.

Question The correctly reported observations are:
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) (i) and (iv)

Question. The characteristics transmitted from parents to offspring are present in:   
(a) Cytoplasm
(b) Ribosome
(c) golgi bodies
(d) genes

Question. The length of pollen tube depends on the distance between:         
(a) Pollen grain and upper surface of stigma
(b) Pollen grain on upper surface of stigma and ovule
(c) Pollen grain in anther and upper surface of stigma
(d) Apper surface of stigma and lower part of style

Question. Which of the following statements are true for flowers?   
(i) Flowers are always bisexual
(ii) They are the sexual reproductive organs
(iii) They are produced in all groups of plants
(iv) After fertilization they give rise to fruits
(a) (i) and (iv)
(b) (ii) and (iii)
(c) (i) and (iii)
(d) (ii) and (iv)

Question. Characters transmitted from parents to offspring are present in:   
(a) Cytoplasm
(b) Ribosome
(c) Golgi bodies
(d) Genes

Question. Which of the following disease is transmitted sexually?
(a) Kala azar
(b) Jaundice
(c) Cholera
(d) Syphilis

Question. What is the puberty age in human males?
(a) 8-10
(b) 10-12
(c) 12-14
(d) 14-16

Question. The two oviducts in a human female unite into an elastic bag like is known as
(a) Vagina
(b) Uterus
(c) Fallopian tube
(d) Cervix

Question. Which of the following is a contraceptive?
(a) Copper t
(b) Condom
(c) Diaphragm
(d) All of these

Question. Growing foetus derive nutrition from mother‘s blood through
(a) Uterus
(b) Fallopian tube
(c) Placenta
(d) Cervix

Question. Fruits are formed from
(a) Stamen
(b) Stigma
(c) Ovary
(d) Ovule

Question. Which is the portion on which grafting is done it provides the roots?
(a) Stock
(b) Scion
(c) Both a and b
(d) None of these

Question. Where does fertilization occur in human females?
(a) Uterus
(b) Cervix
(c) Oviduct
(d) None of these

Question. IUCD is for
(a) Vegetative propagation
(b) Contraception
(c) Increasing fertility
(d) Avoiding miscarriage

Question. When an animal is cut into pieces and each piece grows into a complex organism. What is the process?
(a) Stock
(b) Scion
(c) Both a and b
(d) None of these

Question. In figure, the parts A, B and C are sequentially   
(a) Cotyledon, plumule and radicle
(b) Plumule, radicle and cotyledon
(c) Plumule, cotyledon and radicle
(d) Radicle, cotyledon and plumule

Question. Semen which contains millions of sperms also contains secretions of seminal vesicle and prostrate gland (accessory glands). It makes the tranport of sperms easier and provide nutrition to sperms. Correct sequence of organs in the male reproductive system for transport of sperms is:   
(a) Testis → vas deferens → urethra
(b) Testis → ureter → urethra
(c) Testis → urethra → ureter
(d) Testis → vas deferens → ureter

Question. Reproduction is essential for living organisms to order to: 
(a) Deep the individual organism alive
(b) Fulfill their energy requirements
(c) Laintain growth
(d) Continue the species generation after generation

Question. Which one of the following permanently marks the end of menstrual cycle in females ? 
(a) Menarche
(b) Menopause
(c) Ovulation
(d) Pregnacy

Question. Fertilisation is the process of: 
(a) transfer of male gamete to female gamete.
(b) fusion of nuclei of male and female gamete.
(c) adhesion of male and female reproductive organs.
(d) the formation of gametes by a reproductive rgan.

Question. Characters that are transmitted from parents to offspring during reproduction show:   
(a) Only similarities with parents
(b) Only variations with parents
(c) Both similarities and variations with parents
(d) Neither similarities nor variations

Question. In the following figure, different stages of binary fission in amoeba are depicted, which are not in the proper sequence The correct sequence is     
(a) II, III, IV, I
(b) I, II, IV, III
(c) III, IV, II, I
(d) I, III, IV, II

Question. In which of the following figures is buddin not shown? 
(a) A
(b) B
(c) C
(d) D

Question. To perform an experiment to identify the different parts of an embryo of a dicot seed, first of all you require a dicot seed. Select dicot seeds from the following group.
Wheat, Gram, Maize, Pea, Barley, Ground-nut
(a) Wheat, Gram and Pea
(b) Gram, Pea and Ground-nut
(c) Maize, Pea and Barley
(d) Gram, Maize and Ground-nut

Question. In Rhizopus tubular thread like structures bearing sporangia at their tips are called :
(a) Filaments
(b) Rhizoids
(c) Roots
(d) Hyphae

Question. Which among the following diseases is not sexually transmitted ?
(a) HIV-AIDS
(b) Hepatitis
(c) Syphilis
(d) Gonorrhoea

Question. In the following figure different stages of binary fission in Amoeba are depicted, which are not in proper sequence :

The correct sequence is :
(a) II, III, IV, I
(b) I, II, IV, III
(c) III, IV, II, I
(d) I, III, IV, II

Question. During adolescence several changes occur in the human body. Mark one change associated with sexual maturity in boys.
(a) Loss of milk teeth
(b) Increase in height
(c) Weight gain
(d) Cracking of voice

Question. The correct sequence of reproductive stages seen in flowering plants is :
(a) Gametes, zygote, embryo, seedling
(b) Zygote, gametes, embryo, seedling
(c) Seedling, embryo, zygote, gametes
(d) Gametes, embryo, zygote, seedling

Question. From the figure identify parts labelled a, b and c.
(a) Pollen grains, anther, filament
(b) Anther, pollen grains, filament
(c) Filament, anther, pollen grains
(d) Filament, pollen grains, anther

Question. The anther contains :
(a) Sepals
(b) Ovules
(c) Carpel
(d) Pollen grains

Question. The ability of a cell to divide into several cells during reproduction in Plasmodium is called :
(a) Budding
(b) Reduction division
(c) Multiple fission
(d) Binary fission

Question. On observing an embryo of a pea seed, a student listed its various parts as given below : 
Micropyle, Cotyledon, Plumule, Testa, Radicle, Tegmen On examining the list the teacher remarked that out of these only three parts belong to embryo. Select these three parts : 
(a) Testa, Radicle, Cotyledon
(b) Tegmen, Radicle, Micropyle
(c) Cotyledon, Plumule, Radicle
(d) Cotyledon, Plumule, Testa

 Question. Asexual reproduction takes place through budding in :
(a) Amoeba
(b) Yeast
(c) Plasmodium
(d) Leishmania

Question. In human females an event that reflects onset of reproductive phase is :
(a) Growth of body
(b) Change in voice
(c) Changes in hair pattern
(d) Menstruation

Question. Which of the following is not a part of the female reproductive system in human beings?
(a) Ovary
(b) Uterus
(c) Vas deferens
(d) Fallopian tube

Question. In Rhizopus, tubular thread-like structures bearing sporangia at their tips are called: 
(a) Filaments
(b) Hyphae
(c) Rhizoids
(d) Roots

Question. Which of the following is caused by Virus
(a) AIDS
(b) Gonorrhoea
(c) Syphilis
(d) All the above. 

Question. Pollen grains are produced by
(a)Ovary
(b) Ovule
(c) Corolla
(d) Anther 

Question. The time period for the development of fetus inside the mother’s body is called:
(a) Gestation
(b) Ovulation
(c) Menarche
(d) Menopause 

Question. What provides oxygen and nutrition to the developing embryo in the female body
(a) Fallopian tube
(b) Ovary
(c) Uterus
(d) Placenta   

Question. Most common method of reproduction in majority of fungi is :
(a)Spore formation
(b) Budding
(c) Binary fission
(d) Multiple fission. 

Fill in the blanks

(a) The term used to refer to the transfer of pollen from the stamen of one flower to the carpel of another flower of the same species is ………………………….

(b) The cells involved in sexual reproduction are called …………………………

(c) Fusion of gamets gives rise to a single cell called ………………………….

Match the following
Column I                 Column II
(a) Spirogyra          (i) Regeneration
(b) Bryophyllum     (ii) Spore formation
(c) Rhizopus           (iii) Frasmentation
(d) Hydra                (iv) Budding
(e) Planaria             (v) Leaves

Two statements are given – one labeled Assertion (A) and the other labeled reason (R). Select the correct answer to these questions from the codes a, b, c, d.
(a) Both ‘A’ and ‘R’ are true and R is the correct explanation of A.
(b) Both ‘A’ and ‘R’ are true and R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.

Question. Assertion: In human beings the female produces two types of gametes.
Reason: Female has two X chromosomes. 

Question. Assertion: A bisexual flower produces ova as well as the pollen.
Reason: Ova and pollen are produced in the carpel.   

Question. A: Pre natal sex determination is prohibited         
R: to avoid female foeticide

Question. A: Reproduction involves DNA copying.   
R: DNA contains blue prints of the body design.

Question. A: some flowers are bisexual and some are bisexual         
R: all the flowers contain both male and female reproductive parts

Question. A: amoeba reproduces by binary fission     
R: amoeba is a multicellular organism

Question. A: population is controlled by using contraceptive methods.       
R: Expanding population makes it harder to improve everybody‘s standard of living

Question. A: regeneration is not the same as reproduction           
R: most organisms would not normally depend on being cut up to be able to reproduce.

Question. A: male reproductive system is located outside the abdominal cavity.     
R: Sperm formation requires lower temperature than the normal body temperature.

Question. A: condom is used to prevent transmission of many diseases.       
R: The sexual act has the potential to lead to pregnancy.

True / False :

Question. Vegetative propagation by leaves occurs in sweet potato. 

Question. Sexual reproduction does not lead to variation in a population.

Question. Animal development is limited to the period prior to bird hatching. 

Question. Vegetative propagation produces plants that are genetically similar to the parent plant.

Question. Copper–T is a contraceptive device used by women.

Question. Transfer of male gametes to the stigma of flower is called pollination.

Question. Plants that produce asexually do not produce flower.

Question. At the time of birth, a baby girl has thousands of immature eggs. 

Question. Regeneration is the same as reproduction.

Match the Following :

Column A	Column B
(A) Animals which give birth to young one	(p) Hydra
(B) Animal which produces bud	(q) Planaria
(C) An animal which shows regeneration	(r) Placenta
(D) Provides nutrition to the developing embryo from the mother	(s) Cross-pollination
(E) The pollen transferred from one flower to another flower of other plant	(t) Germination
(F) The process in which embryo develops into seedling	(u) Viviparous
(G) Fertilised egg in humans gets implanted in	(v) Menstruation
(H) When egg in humans is not fertilised, what happens?	(w) Uterus

Match the Following :

Column A	Column B
(A) Seminal vesicle	(p) Latex sheath
(B) Urinogenital duct	(q) Semen plasma
(C) Condom	(r ) Protozoan
(D) Trichomoniasis	(s) Corpus spongiosum

Assertion and Reasoning Based Questions

Directions : In the following questions, a statement of assertion is followed by a statement of reason. Mark the correct choice as :
(a) If both assertion and reason are true and reason is the correct explanation of assertion.
(b) If both assertion and reason are true, but reason is not the correct explanation of assertion.
(c) If assertion is true, but reason is false.
(d) If assertion is false but reason is true.

Question. Assertion : Non-flowering plants cannot reproduce sexually.
Reason : Flower is only reproductive part of the plant that can produce gametes.
Answer : (a) Gametes are mandatory for sexual reproduction.
Though plants can reproduce through other parts like stem and roots (vegetative reproduction), but they cannot reproduce sexually in absence of flowers. Thus both assertion and reason are true and reason is the correct explanation of the assertion.

Question. Assertion : Placenta is connected to the embryo through an umbilical cord which helps in the transport of substances to and from the embryo.
Reason : Placenta acts as an endocrine tissue.
Answer : (b) Both the above statements are functions. But they are not related to each other. Being an endocrine tissue it releases hormones like progesterone, estrogen and others, but does not help in transport of materials to and from the embryo. Thus both assertion and reason are true, but reason is not the correct explanation of the assertion.

Question. Assertion : XX chromosome give rise to female child whereas XY give rise to male child.
Reason : The Y chromosome in males is small than X chromosome.
Answer : (b) Smaller Y chromosome, does not decide the gender of the child. Its presence is important not the size.
Thus both assertion and reason are true, but reason is not the correct explanation of the assertion.

Question. Assertion : High chances of fertilization is during the mid of the menstrual cycle.
Reason : Sperms are very active during that time.
Answer : (c) The reason is incorrect because ovulation takes place on the 14th day of the menstrual cycle, so if the sperm happens to meet the ovum during that phase fertilization will take place. Thus assertion is true, but reason is false.

Question. Assertion : Copper-T can be used as a contraceptive method.
Reason : It prevents from sexually transmitted disease.
Answer : (c) Copper-T is a contraceptive method, which is inserted inside the uterus, it prevents implantation.
It does not prevent sexually transmitted disease.
Thus assertion is true, but reason is false.

Creating Based Questions

Question. Using the following words create the course of the movement of sperm through the male reproductive system.
Penis, testes, vas deference, epididymis, urethra.
Answer : Sperms formed in the testes → Epididymis → Vas deference → Urethra → Penis.

Question. Discuss what will be the effect of DNA copying which is not perfectly accurate in the reproduction process ?
Answer : The DNA copying which is not perfectly accurate in the reproduction process will result in variations in populations for better survival of the species.

Question. Solve the following :
In a tobacco plant, the male gametes have 24 chromosomes. What is the number of chromosomes in the female gamete ? What is the number of chromosomes in the zygote ?
Answer : If the male have 24 chromosomes then the female will also have 24 and the zygote will have 48 chromosomes .

Question. Imagine what will happen if the pollen of rose fall on the pollen of sunflower ?
Answer : Fertilization will not take place as both the flowers belong to different species.

Question. Elaborate the statement ‘DNA contains the blueprint of the next generation’.
Answer : DNA is the hereditary material. It stores the blueprint in the genes which are sequence of nucleotidase. Genes control synthesis of proteins. These proteins act as enzymes which control biochemical reactions of the body. Genes are responsible for transmitting characters from parents to offspring. Before transmitting characters from parents to offspring prior to cell division, DNA makes its copies by replication. Hence, DN contains the blueprint of the next generation.

Paragraph/Table and Case Study Based Questions

1. Read the following and answer any four questions from 1(i) to 1(v):
Reproduction is the process by which organisms increase their populations. The rates of birth and death in a given population will determine its size.
The size of the human population is a cause for concern for many people.

(i) Abhishek has 2 daughters and 1 son. To avoid further unwanted pregnancy, he undergoes a surgical treatment. What is the process called?
(a) Tubectomy
(b) Vesectomy
(c) Appendectomy
(d) Bypass surgery

(ii) The graph below shows the change in hormonal level in a female during a month. What is the normal time period for menstruation to last in one cycle?

(a) 8-10 days
(b) 15-16 days
(c) 1-8 days
(d) 2-8 days

(iii) What happens if the fallopian tubes are blocked and ovulated eggs are prevented from reaching the uterus?
(a) Fertilisation may occur but no implantation occurs in uterus
(b) The sperm will enter ovary and fertilise the egg
(c) The fallopian tube burst open and the fertilisation occur
(d) All eggs in the ovary die

(iv) According to the survey conducted in 2010-2012,
the graph depicts the sex-ratio in Haryana. The  ratio of child sex ratio was found to be lower than the expected.

What could be the possible reason for such difference in child sex ratio?
(a) Sexually transmitted disease
(b) No use of contraceptives
(c) Female foeticides
(d) Hormonal imbalance

(v) Match the following by choices given:

Choose the correct option:
(a) 1-b, 2-c, 3-e, 4-a,5-d
(b) 1-d, 2-a, 3-e, 4-b,5-c
(c) 1-b, 2-e, 3-c, 4-a,5-d
(d) 1-b, 2-c, 3-e, 4-d,5-a

2. Read the following and answer any four questions from 2(i) to 2(v).
Different species use different strategies for sex determination. Some rely entirely on environmental cues. Thus, in some animals, the temperature at which fertilised eggs are kept determines whether the animals developing in the eggs will be male or female, indicating that sex is not genetically determined.
However, in human beings, the sex of the individual is largely genetically determined.

(i) The given graph represents the variation of sex in population, if no external interference occurs from outside (natural phenomenon).

Which of the following statement is correct?
(a) In human beings, the statistical probability of getting either a male or female child is 50:50.
(b) Female carries XY and Male carries XX chromosomes
(c) X chromosome comes from mother only.
(d) Y chromosome comes from both mother and father.

(ii) See the diagram and answer why does child not exactly resemble to father?

(a) X chromosome of father is recessive trait
(b) X chromosome from mother will also show its effect
(c) Sexual reproduction leads to variation
(d) Children always resemble their mother than father

(iii) Which of the following is not correctly matched?
(a) TT × tt → Tt
(b) Wrinkled seed is a recessive trait in pea plant
(c) Mendel blended his knowledge of science and mathematics and studied the laws of experiment
(d) Father and mother both having blood group O could have a child of blood group AB

(iv) Study the following diagram 

Which law of inheritance is followed in the diagram?
(a) Law of dominance
(b) Law of segregation
(c) Law of independent assortment
(d) All of these

(v) A normal pea plant bearing coloured flowers suddenly produces a white flower. What could be the possible reason?
(a) Variations
(b) Mutation
(c) Temperature change
(d) Cross pollination

3. Read the following and answer any four questions from 3(i) to 3(v):
A basic event in reproduction is the creation of a DNA copy. Cells use chemical reactions to build copies of their DNA. This creates two copies of the DNA in a reproducing cell, and they will need to be separated from each other. DNA copying is accompanied by the creation of an additional cellular apparatus, and then the DNA copies separate, each with its own cellular apparatus. Effectively, a cell divides to give rise to two cells.

(i) A cell divides to form two daughter cells. The two daughter cells are similar but not identical. Why?
(a) DNA copying is accompanied by variations each time
(b) One cell is usually larger than the other
(c) Each daughter cell acquires different chromosome from parent cell
(d) The statement given is itself false.

(ii) The following graphs show the influence of colony size and winter bee lifespan. It represents the influence on the total number of winter bees in a colony over the time.

Normally, the bees of the healthy colony have higher survival rate over unhealthy colony. If a population of reproducing organisms were suited to a particular niche and if the niche were drastically altered, the population could be wiped out.
Which of the following statements support the study?
(a) Change in temperature leads to increase in mortality rate of an organism.
(b) Healthy colony have more nutrition for survival than unhealthy colony.
(c) Every organism has same chances of survival irrespective of their genetic makeup.
(d) Variation is useful for the survival of species over time.

(iii) Which of the following is correctly matched?

(iv) In which method, new plants are grown by removing tissue or separating cells from the growing tip of a plant, in artificial medium?
(a) Fertilisation
(b) Tissue culture
(c) Cell culture
(d) Vegetative propagation

(v) Choose the correct labeling of the internal parts for pollination of a flower 

(a) P-stigma, Q-style, R-Sepal, S-ovary
(b) P-anther, Q-filament, R-petals, S-ovary
(c) P-stigma, Q-filament, R-Sepal, S-ovary
(d) P-stigma, Q-style, R-Sepal, S-ovule

4. Study the table given below and answer the questions.

(a) What are STDs ?
(b) What is the full form of HIV and AIDS ?
(c) Is syphilis a bacterial infection or a viral infection ?
(d) Is trichomoniasis a bacterial infection ?
Answer : (a) There are a number of diseases that are caused by sexual inter courses. These diseases are called STDs “Sexually transmitted disease”.
(b) The full form of HIV is the human immunodeficiency virus, and the full form of AIDS is Acquired immunodeficiency syndrome.
(c) The syphilis is a bacterial infection as it is caused by a bacteria named Treponema pallidum.
(d) No, trichomoniasis is not a bacterial infection as it caused by a protozoan named Trichomoniasis vaginalis.

5. Study the table given below and answer the questions.

(a) What are the male gametes, and where are they produced ?
(b) What is the penis ?
(c) Name the part of the male reproductive part where the male gametes mature.
(d) What are seminal vesicles ?
Answer : (a) The sperms are known to be the male gametes, and they are produced in the testis.
(b) Penis is the part of the “male reproductive system”. Males use penis for sexual intercourse. The penis contains a number of blood vessels. These vessels are with blood. The blood circulation in the penis increases during sexual intercourse.
(c) A duct called epididymis is present in the reproductive part of the males. The newly formed sperms are stored in this duct. They get mature in this duct.
(d) The seminal vesicle is present in the male reproductive part. It is an exocrine gland that releases a sugary component in semen.