Biology Quiz 7

False fruit (Accessory fruit) is a fruit in which some of the flesh is not derived from the ovary but some adjacent tissues exterior to the carpel. Some examples of false fruit are apple, pear, and cucumber that develop from the thalamus, cashew-nut develops from the peduncle, jackfruit and pineapple develop from the entire inflorescence.

Vitamin B₁₂, cobalamin, is a cobalt-containing ring-contracted modified tetrapyrrole that represents one of the most complex small molecules made by nature. The core component of cobalamin is the corrin macrocycle that acts as the main ligand for the cobalt.

Vitamin C, also known as ascorbic acid, is a temperature-sensitive vitamin, so is easily destroyed by heat. It is easily degraded during cooking.

Dinosaurs were reptiles that became extinct. They are archosaurs, a larger group of reptiles that first appeared about 251 million years ago, near the start of the Triassic Period.

The syrinx is the vocal organ of birds. It is located at the base of a bird's trachea, where the trachea divides into the bronchi (tubes that connect the trachea with the lungs). It produces sounds without the vocal folds of mammals.

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.

Pregnant women usually become deficient in Calcium and Iron. During Pregnancy, the body needs iron to make hemoglobin — that's the substance in red blood cells that helps carry oxygen to organs and tissues. A developing baby needs calcium to build strong bones and teeth.

Chlorophyll - Photosynthetic pigment, Nostoc - Diazotroph (bacteria), Transpiration - Loss of water from plant surface, Rust of wheat - Plant disease (fungal disease of wheat).

The approximate time required for a heartbeat is 0.8 second. A normal resting heart rate for adults ranges from 60 to 100 (for children- 70 to 100) beats per minute. (Approximate time required for a heartbeat = 60 second ÷ average heart rate ≈ 0.8 second).

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.