Biology Quiz 4

Anadromous fish lives mostly in the ocean but during reproduction go to fresh water stream. Hilsa and Salmon are anadromous fish.

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.

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.

Biological control is the use of living organisms to maintain pest populations below damaging levels. Predators of a pest, Pheromone traps and neem extracts are used as a Biological control. Pesticides are not used as a Biological control as it is a chemical agents.

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

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.

The normal pH range of human blood is 7.35 to 7.45. This means that blood is naturally slightly alkaline or basic.

The femur is the longest bone found in the human body. It is almost 19.9 inches long and is commonly known as the thigh bone.

Salivary amylase is an enzyme that is present in the saliva of humans. It is a glucose-polymer cleavage enzyme that is produced by the salivary glands.

It is the nerve tissue where no cell division occurs after birth. Cell division is the process by which a parent cell divides into two daughter cells with the same genetic material. There are two types of cell division: mitosis and meiosis. There is absence of centrioles in the nerve cells and because of this they are unable to perform mitosis and meiosis and hence these cells do not divide.