Biology Online Quiz

Jellyfish are marine invertebrates with no brains, no bones, no heart, and no eyes. Silverfish (Lepisma saccharinum) is not a fish but an insect.

Black Death was a devastating global epidemic of bubonic plague that struck Europe and Asia in the mid-1300s.

A photosynthetic vesicle found in bacteria is called a chromatophore. In some forms of photosynthetic bacteria, a chromatophore is a coloured, membrane-associated vesicle used to perform photosynthesis. Chromatophores contain bacteriochlorophyll pigments and carotenoids.

Omega-3 and 6 fatty acids are also called essential fatty acids. Coconut oil does not contain essential fatty acids. It is a highly beneficial healthy fat but does not actually contain Omega fatty acids. Sunflower oil, Mustard oil and Groundnut oil contain essential fatty acids.

To measure blood pressure, doctor uses an instrument called a sphygmomanometer, which is more often referred to as a blood pressure cuff.

colour blindness, inability to distinguish one or more of the three colours red, green, and blue. A man with colour blindness will see red as Green.

A glass snake (glass lizard) is a long, slender, legless lizard that superficially resembles a snake but is not a true snake. It has no legs but is not a snake, making it a unique and interesting member of the reptile kingdom.

Tuberculosis (TB) is caused by a bacteria called Mycobacterium tuberculosis. TB bacteria spread through the air from one person to another. When a person with TB disease of the lungs or throat coughs or speaks, TB bacteria can get into the air. People nearby may breathe in these bacteria and become infected.

Edible part of cabbage is a vegetative bud. Vegetative buds are those from which stem leaves are grown.

Hypothalamus is the gland that holds the body's thermostat. It is involved in different daily activities like eating or drinking, in the control of the body's temperature and energy maintenance, and in the process of memorizing and in stress control. It acts as the body's smart control coordinating centre.