Population - The increasing numbers and rising problems — Biology STD 10 — Question

Differentiate
Urinogenital system and Urinary system.

A leaf cell of a water plant was placed in a liquid other than pond water. After sometime, it assumed a shape as shown below:
Redraw in the space provided, the diagram of the cell if it is soon placed in ordinary water for some time.

Two potato cubes each 1 cm3 in size, were placed separately in two containers (A and B), the container A having water and the other (B) containing concentrated sugar solution. After 24 hours when the cubes were examined, those placed in water were found to be firm and had increased slightly in size and those placed in concentrated sugar solution were found to be soft and somewhat decreased in size. Use the above information to answer the questions that follow: Name and define the physical process being investigated in this experiment.

Explain the Term :
Cowper's glands

Differentiate between: Acquired and Congenital disease.

The diagram below shows part of the capillary bed in an organ of the human body. Some of the blood arriving at the capillaries at points labeled A, moves out into the spaces between the tissue cells. Study the diagram and answer the questions that follow:

State two important functions performed in our body by the fluid present in vessel X.

Explain the Term: Voluntary-action

State Mendel's law of segregation.

The following diagram represents the vertical sectional view of the human female reproductive system.
What happens to the uterus, if fertilization fails to take place?

Give Reasons for the following.
Freshwater fish cannot survive in seawater.