Biology Questions and Answers

II - making tables with plastic: Encouraging the use of plastic for making tables is beneficial for wildlife and forests. By using plastic instead of wood for furniture, we reduce the demand for wood, which can help curb deforestation and preserve forest ecosystems. Reducing deforestation is vital for the conservation of wildlife, as forests provide critical habitat for numerous species.

Bronchioles are small, narrow tubes that are part of the respiratory system and are found within the lungs. After the air passes through the trachea and bronchi, it enters the bronchioles, which represent the smaller airways within the lungs.

The parts labelled 1, II, III and IV respectively are larynx, trachea, bronchiole and bronchus
The larynx, commonly known as the voice box, is a cartilaginous structure located in the neck, just below the pharynx and above the trachea.
The trachea, also known as the windpipe, is a long tube made of C-shaped rings of cartilage that extend from the larynx to the bronchi.
Bronchioles are small, narrow tubes that branch out from the bronchi. They represent the smaller airways within the lungs.
The bronchi are the two main branches that arise from the lower end of the trachea, one leading to each lung.

The androecium is the male reproductive part of a flowering plant, and it is composed of stamens. Each stamen consists of two main parts:
Filament
Anther

The heart has four chambers: two atria (auricles) and two ventricles. The tricuspid valve is one of the heart's valves and is located between the right atrium (right auricle) and the right ventricle.