Biology Quiz 4

Fluoride or fluorine deficiency can lead to tooth decay and possibly osteoporosis. Consuming enough fluoride can make tooth decay less likely and may strengthen bones. Fluoride is a mineral stored in teeth and bones that strengthens them by aiding in the retention of calcium.

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

The 'eye' of the potato can produce new plants by vegetative propagation.

EEG (electroencephalogram) is used to detect the functioning of the Brain. It is a test that detects electrical activity in the brain using small, metal discs (electrodes) attached to the scalp.

According to WHO, the Bird Flu virus cannot be transmitted through food cooked beyond 70 degrees Celsius.

Pheromones are chemicals released by one species of animals in order to attract the other members of the same species. They are capable of acting like hormones outside the body of the secreting individual, to affect the behavior of the receiving individuals.

Excretory products of a mammalian embryo are eliminated out by Placenta. The placenta is a temporary organ that develops in the uterus during pregnancy. It provides the nutrients and oxygen to the baby for development and growth. Excretory products eliminated from the embryo such as urea, uric acid, and creatinine are transferred to the maternal blood by diffusion across the placenta.

Adrenal (also known as suprarenal glands) are small, triangular-shaped glands located on top of both kidneys. Adrenal glands produce hormones that help regulate your metabolism, immune system, blood pressure, response to stress and other essential functions.

There are two types of vitamins: water-soluble and fat-soluble. Vitamin C and members of the vitamin B complex are water-soluble. Water-soluble vitamins are easily destroyed or washed out during food storage and preparation.

William Harvey made the momentous medical discovery that the flow of blood must be continuous and that its flow must be in one direction only.