The Excretory System — Biology STD 10 — Question

Choose the odd one out in the following serie:
Urea, uric acid, haemoglobin.

Give Technical Terms
The division which brings about vegetative growth.

Explain the Term Cleavage furrow.

Name the Following :
The cells of the testes that produce male hormones.

Give technical term:
Name the process which is responsible for the conversion of solar energy to chemical energy that is essential to sustain life on this earth?

Explain the Term Heredity.

Name the following:
The process by which plants produce their food.

A candidate studied the importance of certain factors in photosynthesis. He took a potted plant and kept in the dark for over 24 hours. In the early hours of the next morning, he covered one of the leaves with black paper in the centre only. Then he placed the plant in sunlight for a few hours and tested the leaf which was covered with black paper for starch.
What aspect of photosynthesis was being investigated?

Name the Following
The expulsion of the fetus from the body of the mother.

Name the following:
The part of the female reproductive system in which fertilization occurs.