BIOLOGY Fill In The Blanks.

Workers in stone grinding factories should use ________.

The thoracic cavity chamber is formed by the vertebral column in the dorsal part, the sternum in the ventral part, the ribs in the lateral part and the domed ________ below.

Each haemoglobin molecule can carry a maximum of ________.

________ is the medium for transportation of oxygen and carbon dioxide.

Diffusion membrane mainly consists of ________ layers.

The participation of a particular gas in the pressure in a mixture of gases is called ________.

The pharynx is a ________ passage for both food and air.

In aquatic arthropods, respiration occurs through a special vascular structure called ________.

Oxygen is transported mainly in the form of ________.

Cells use ________ for metabolic activities.