Which are the components of pollination ? - Science and Technology 2

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Which are the components of pollination?



Pollination occurs with the help of abiotic agents like wind, water and biotic agents like insects and other animals.

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Chapter 3: Life Processes in Living Organisms Part - 2 - Answer in one sentence


SCERT Maharashtra Question Bank 10th Standard SSC Science and Technology 2 Maharashtra State Board
Chapter 3 Life Processes in Living Organisms Part - 2
Answer in one sentence | Q 7


Which mode of reproduction gives rise to variation?

Give the importance of variation in survival of species.

Complete the following table to get the differences between asexual and sexual reproduction:

Characteristics Asexual Reproduction Sexual Reproduction
Number of parents involved ........................... ..............................
Type of cells involved Somatic cells Germ cells
Type of cell division ............................ Meiosis and mitosis

What is meant by sexual reproduction?

Name two main processes of sexual reproduction

What is the effect of DNA copying, which is not perfectly accurate, on the reproduction process? How does the amount of DNA remain constant though each new generation is a combination of DNA copies of two individuals?

How do organisms, whether reproduced asexually or sexually maintain a constant chromosome number through several generations? Explain with the help of suitable example.

What is amphimixis?

Choose the most appropriate answer.

Internal fertilization occurs

Choose the most appropriate answer.

The number of nuclei present in a zygote is

Indicate whether the following statements are True (T) or False (F).

Oviparous animals give birth to young ones. ( )

Indicate whether the following statement is True (T) or False (F).

Each sperm is a single cell. ( )

Indicate whether the following statement is True (T) or False (F).

A zygote is formed as a result of fertilization. ( )

Indicate whether the following statement is True (T) or False (F).
An embryo is made up of a single cell. ( )

Give two differences between a zygote and a foetus.

In which female reproductive organ does the embryo get embedded?

Differentiate between internal fertilization and external fertilization.

Complete the crossword puzzle using the hints given below.


1. The process of the fusion of the gametes.

6. The type of fertilization in hen.

7. The term used for bulges observed on the sides of the body of Hydra.

8. Eggs are produced here


2. Sperms are produced in these male reproductive organs.

3. Another term for the fertilized egg.

4. These animals lay eggs.

5. A type of fission in amoeba.

Which species is likely to have better chances of survival - the one reproducing asexually or the one reproducing sexually? Justify your answer.

Name the male and female gametes in animals.

Describe the various steps involved in the sexual reproduction in animals. Draw labelled diagrams to show the fertilisation of an ovum (or egg) by a sperm to form a zygote

 Write the various steps involved in the sexual reproduction in plants.

The figure given alongside shows the human male reproductive organs. Which structures make sperms and seminal fluid?
(a) V makes sperms and X makes seminal fluid
(b) W makes sperms and Y makes seminal fluid
(c) X makes sperms and W makes seminal fluid
(d) Y makes sperms and V makes seminal fluid

The offsprings formed as a result of sexual reproduction exhibit more variations because ______

One of the following process does not lead to the formation of clones. This is :
(a) fission
(b) fertilisation
(c) fragmentation
(d) tissue culture

Put a tick mark (✓) against the correct alternative in the following statement:

Amoeba is most commonly reproduced by:

Distinguish between the following pair of terms:

Sexual reproduction and asexual reproduction.

Distinguish between the following pair of terms:

Budding and Regeneration.

Define the term Fetilization.

Define the term  Implantation.

What is the function of uterus?

Multiple choice question. Tick (✓) the correct choice:

Butterfly in its development from larva to an adult shows

  1. multiplication
  2. metamorphosis
  3. fertilisation
  4. none of the above

Find the odd one out, give reason:

Testes, epididymis, uterus, vas deferens

Differentiate between the following:

External fertilisation and Internal fertilisation.

Name the organ involved in the following:

Passing of sperms from a man to a woman.

Adolesecence is considered a critical stage in the life of boys and girls. Explain this statement.

Sketch and label the diagram showing self- and cross-pollination.

In the sexual mode of reproduction, greater diversities are generated.

Answer in one sentence.

Outline the path of sperm upto the urethra.

Answer in one sentence.

Enlist the external genital organs in the female.

Answer the following question.

Explain the histological structure of ovary in human.

Answer the following question.

Which is the function of male accessory glands?

Long answer question.

Describe female reproductive system of human.

What is atresia with respect to ovary in human females?

Give an account of external genitalia in human females.

Identify the labels from the given diagram.

Write an account of the seminal vesicle and bulbourethral gland in the male reproductive system.

Animals which give birth to young ones directly are named as ______.

Which organs/glands produce eggs and sperms?

In an ovule, meiosis occurs in ______

Due to presence of which of the following chemical component, pollen grains can remain well preserved in fossil?

Testosterone is produced by ____________.

Which of the following is the male accessory gland?

Identify the INCORRECT statement.

Match column -1 with column - II and select the correct option.

  Column - I   Column - II
1. Seminal vesicles a. Membranous urethra
2. Scrotum b. Thermoregulatory
3. Tunica vaginalis c. Fibro muscular pouches
4. Cowper's gland d. Peritoneal covering

Which of the following is a primary sex organ in a mammal?

______ is the first stage of sexual reproduction.

______ fertilisation takes place in frogs and fish.

The zygote divides repeatedly into a group of cells, which develops into different tissues and organs constituting a full body. This structure is known as ______.

______ lay thousands and sometimes millions of small, soft eggs in water.

The eggshell protects the ______ from the outer environment.

Name the two ways by which fertilisation in animals takes place.

What is external fertilisation?

What are oviparous animals?

Explain the formation of the embryo.

Which is a better mode of reproduction, sexual or asexual? Why?


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