Biology Online Quiz

Nepenthes is an insect-catching plant. It is a genus of carnivorous plants, also known as tropical pitcher plants, or monkey cups, in the monotypic family Nepenthaceae.

Ano-Genital Warts (AGW) is usually a sexually transmitted disease (STD) which is caused by HPV (human papilloma virus). HIV infection and AIDS is a spectrum of conditions caused by infection with HIV, a retrovirus. AIDS was first recognized by the United States Centers for Disease Control and Prevention (CDC) in 1981 and its cause—HIV infection—was identified in the early part of the decade.

When the radius of blood vessels decreases, their capacity to hold blood is reduced, allowing more blood to return to the heart from which it is pumped into the arteries. As a result, blood pressure increases.

The typical composition of exhaled air is about 18 percent O₂, 78 percent N₂, and 4 percent CO₂.

Common Cold is caused by viruses. Although many types of viruses can cause a common cold, rhinoviruses are the most common cause. Typhoid is caused by a bacterium called Salmonella typhi. Cholera is caused by Vibrio cholerae bacteria. Tetanus is an infection caused by a bacterium called Clostridium tetani.

cold-blooded animals' body temperature remains constant all the time. They cannot regulate their internal body temperature with the change in the environment. Animals, such as reptiles, fishes, and amphibians, cannot control their body temperature and therefore become sluggish in cold weather.

Necrosis is cell or tissue death within a living body. It is a form of cell injury which results in the premature death of cells in living tissue by autolysis.

Itai-itai disease is a well-known health hazard induced by cadmium (Cd) that was first reported in the Cd-polluted Jinzu River basin of Toyama Prefecture, Japan.

Among the given options, Mollusc plasma bears the smallest living cell. Mycoplasma is the smallest living known cell. It is prokaryotic, devoid of a cell wall and can live without oxygen. It is pathogenic to both plants and animals.

What 1 to 2 percent of the solar energy is trapped and utilised by the plants. Most solar energy occurs at wavelengths unsuitable for photosynthesis. Between 98 and 99 percent of solar energy reaching Earth is reflected from leaves and other surfaces and absorbed by other molecules, which convert it to heat.