Biology Quiz 7

Cloves are commonly used as a spice. They are the dried flowers of the tree Syzygium aromaticum.

Allopathy is the branch of medicine involving synthetic chemical compounds. It is the treatment of disease by conventional means, i.e. with drugs having effects opposite to the symptoms.

The main function of white blood cells (WBCs) in the body is to protect the body against disease. WBCs protect the body against infection. As WBCs travel through the bloodstream and tissues, they locate the site of an infection and act as an army general to notify other WBCs of their location to help defend the body from an attack of an unknown organism.

Fat produces the highest amount of energy upon oxidation. It is the slowest source of energy but the most energy-efficient form of food. Each gram of fat supplies the body with about 9 calories, more than twice that supplied by proteins or carbohydrates.

Biome is the total interaction between animals and plants in any well-defined area. It refers to the community of plants and animals that occur naturally in an area, often sharing common characteristics specific to that area.

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.

Smallpox has been eradicated from the world. It was a serious infectious disease caused by the variola virus. World Health Organization (WHO) declared smallpox eradicated in 1980.

Scurvy is caused due to the deficiency of Vitamin C (also known as ascorbic acid). It is caused by not having enough vitamin C in the diet for at least three months. Vitamin C is mainly found in fruit and vegetables.

Both male and female mosquitoes eat the same things—Plant sap, nectar and plant derivatives—for energy. But only female mosquitoes imbibe a blood meal.

The huge muscles that power the wings attach to a flat part of the breastbone called the keel. Some flightless birds, including ostriches, do not have a keel.