The Reproductive system — Biology STD 10 — Question

Describe briefly the ways how a mammalian embryo is nourished

Define:
Diabetes insipidus

Explain the following:
Why is the closed circulatory system more efficient than the open system?

Abnormally a large number of WBCs in the blood is usually an indication of some infections in our body.

SHORT ANSWER TYPE QUESTIONS
Rahul fell and scraped his knee while playing. His bleeding stopped, and a scab formed, which his mother explained as a natural process to prevent too much blood loss.
(i) What is the primary reason for the formation of a scab over Rahul's wound?
(ii) What can happen if blood clotting does not occur properly in the body?

Give an account of the importance of turgor pressure in a herbaceous plant.

Distinguish between the following :
Cuticular transpiration and lenticular transpiration

Describe the functions of the following:
Prostate gland

Give Reasons for the following:
Balsam plants wilt during midday even if the soil is well watered.

List any two changes each in human male and female, which occur during puberty.