Biology Quiz 6

Pulmonary Vein brings clean blood from the lungs into the heart. Its function is to transport oxygenated blood from the lung alveoli into the left atria.

The Male (Anopheles) mosquito feeds on the nectar of flowers. Unlike females, males do not feed on mammalian blood. They use their proboscis or feeding tube to drink nectar from flowers.

An ecosystem consists of a community of organisms together with their physical environment. Ecosystems can be of different sizes and can be marine, aquatic, or terrestrial.

Beri-Beri is a disease caused by a vitamin B1 deficiency, also known as thiamine deficiency. The body needs thiamin to break down and digest the foods, keep the metabolism going, and help muscles and the nervous system do their jobs effectively.

Hay fever, also called seasonal allergies, causes cold-like signs and symptoms, such as a runny nose, itchy eyes, congestion, sneezing and sinus pressure. But unlike a cold, hay fever isn't caused by a virus.

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.

Heparin is the anti-coagulant substance in the blood. Heparin injection is used to decrease the clotting ability of the blood and help prevent harmful clots from forming in blood vessels. This medicine is sometimes called a blood thinner, although it does not actually thin the blood.

Sweat glands in mammals are primarily concerned with thermoregulation. Its main function is to control body temperature. As the water in the sweat evaporates, the surface of the skin cools.

Amla is called 'Herbal Indian Doctor' due to its immunity. The Vitamin C content of Amla makes it an excellent source of building immunity and metabolism. It is known to fight both viral and bacterial ailments efficiently and reducing the impact of various health problems.

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.