Tamil Nadu Board of Secondary EducationSSLC (English Medium) (5 to 8) Class 5

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 ______. - Science

Advertisements
Advertisements
MCQ
Fill in the Blanks

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 ______.

Options

  • egg

  • Embryo

  • zygote

Advertisements

Solution

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 Embryo.

  Is there an error in this question or solution?

RELATED QUESTIONS

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


No two individuals are absolutely alike in a population. Why?


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


What are the advantages of sexual reproduction over asexual reproduction?


Describe the process of fertilization in human beings.


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.


Differentiate between internal fertilization and external fertilization.


Complete the crossword puzzle using the hints given below.

Across

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

Down

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.


What is the name of sex cells (other than gametes)?


Name the male and female gametes in animals.


Define sexual reproduction.

 

name the organ which produces male sex cells.


In which sort of reproduction are gametes involved?


What would be the ratio of chromosome number between an egg and its zygote?


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


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

Amoeba is most commonly reproduced by:


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

Which one of the following represents the correct sequence in the life history of a butterfly ?

  1. Egg → Larva → Adult → Pupa
  2. Egg → Pupa → Adult → Larva
  3. Egg → Larva → Pupa → Adult
  4. Egg → Pupa → Larva → Adult

What is the function of uterus?


How does a single called fertilized egg grows into an adult human body?


Define the term Adolescence.


Define the term Puberty.


Mention the common method of reproduction in Flatworm.


Mention the common method of reproduction in Start fish.


Mention the functions of Oviduct.


Describe the various stages in the life cycle of a butterfly.


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.

Which glands contribute fluids to the semen?


Answer in one sentence.

Name the endocrine glands involved in maintaining the sex characteristics of males.


Answer in one sentence.

Enlist the external genital organs in the female.


Explain the histological structure of testis.


Answer the following question.

Explain the following parts of male reproductive system along with labelled diagram showing these parts- Testis, vasa deferentia, epididymis, seminal vesicle, prostate gland and penis.


Long answer question.

Describe female reproductive system of human.


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.


Which are the components of pollination?


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


What are the different stages of sexual reproduction?


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

______ is the first stage of sexual reproduction.


______ fertilisation takes place in frogs and fish.


Animals in which an embryo develops outside the body are called ______ animals.


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


The eggshell protects the ______ from the outer environment.


What is external fertilisation?


What are oviparous animals?


Explain the two types of fertilization.


Explain the formation of the embryo.


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


Share
Notifications



      Forgot password?
Use app×