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The diagram shows a section through the female reproductive system.
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During pregnancy. Where does mitosis occur in the cells of the embryo?

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A. (a)
B. (b)
C. (c)
D. (d)

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Important Questions on How do Organisms Reproduce?

EASY
The source of mammalian hormone "Relaxin" is
HARD

. From the third month of pregnancy, the embryo is called _____

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Sensitive whiskers are found in
EASY

The diagram given below represents a system in the human body.

Study the diagram and answer the following questions:

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Identify the system.

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Write the function of the following part in the human female reproductive system:

Oviduct

EASY

Given below are certain groups of terms. In each group, the first pair indicates a relationship between the two terms. Rewrite and complete the second pair on a similar basis.

Uterus : Implantation :: Fallopian tube : _____.

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Define the term pollination. Differentiate between self-pollination and cross-pollination. What is the significance of pollination?
EASY

Choose the correct answer from each of the four options given below:

On which day of the menstrual cycle does ovulation take place?

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Write the function of the following part in the human female reproductive system:

Uterus

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What is carpel? Write the function of its various parts.
EASY

The diagram given below represents a system in the human body.

Study the diagram and answer the following questions:

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 Name the two hormones secreted by 1.

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Describe in brief the structure and function of placenta.
EASY

The diagram given below represents a system in the human body.

Study the diagram and answer the following questions:

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 Mention the number and the name of the part involved in fertilization and

Implantation from the above diagram.

EASY

Arrange the phases of the menstrual cycle in the correct order.

1) Proliferative
2) Menstrual
3) Ovulatory
4) Secretory

EASY

The diagram given below represents a system in the human body.

Study the diagram and answer the following questions:

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Label the parts marked 5 and 6.

EASY

 Differentiate between the following pairs on the basis of what is indicated in the brackets.

Testosterone and Oestrogen [organ which secretes].

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Give appropriate biological or technical terms for the following:

The onset of menstruation in a young girl.

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List in proper sequence four steps of obtaining germinating dicot seeds.
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Write the function of the following part in the human female reproductive system.

Ovary

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Write one main difference between the asexual and sexual modes of reproduction. Which species is likely to have comparatively better chances of survival - the one reproducing asexually or the one reproducing sexually? Give a reason to justify your answer.