Biology Online Quiz

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.

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.

Vitamin E is particularly important for the normal activity of sex glands as it improves blood flow and oxygen to sexual organs. It is an antioxidant that helps to maintain healthy skin, eyes and hormonal balance. It also enhances immune function and prevents clots from forming in heart arteries.

Charles Darwin (1809-1882) and Alfred Russel Wallace (1823-1913) were contemporary naturalists who proposed a similar theory of organic evolution. Wallace greatly admired On the Origin of Species. In turn, Darwin regarded Wallace as the one man who truly understood the idea of evolution by natural selection.

Typhoid is caused by a type of bacteria called Salmonella typhi, which is related to the bacteria that cause salmonella food poisoning.

“Plant - Rabbit - Tiger” represents a food chain involving a producer, a vegetarian and a non-vegetarian.

The respiration process requires oxygen. The main purpose of respiration is to provide oxygen to the cells at a rate adequate to satisfy their metabolic needs. During respiration, inhaled oxygen is used by the cells to produce energy by the breakdown of glucose molecules.

The world's smallest flowering plant is the watermeal, or Wolffia globosa.

Sunlight is not required for seed germination. Light isn't strictly necessary for germination in most plant species. All seeds need water, oxygen and suitable temperature to germinate.

Blood types are determined by the presence or absence of certain antigens. There are 4 main blood groups – A, B, AB and O. Blood group is determined by the genes inherited from the parents. AB-positive blood type is known as the “universal recipient” because AB-positive patients can receive red blood cells from all blood types.