Correct Answer :   Hypoxemia

Oxygen deficiency or decreased oxygen levels in the blood is a condition known as Hypoxemia.

Correct Answer :   difference threshold

Correct Answer :   Cornea, Pupil, Lens and Retina

From the cornea, the light passes through the pupil. From there, it then hits the lens, the transparent structure inside the eye that focuses light rays onto the retina. The iris, or the colored part of your eye, regulates the amount of light passing through. 

Correct Answer :   Glucose

Here cellulose, sucrose and glycogen are all the forms of glucose. Hence, glucose includes all the other three given options.

Correct Answer :   Siderite

Siderite is a mineral composed of iron(II) carbonate. It is a valuable iron mineral, since it is 48% iron and contains no sulfur or phosphorus. 

Correct Answer :   Secretion of hormones for calcium regulation in blood and bones

Correct Answer :   Iron

Rusting is an oxidation reaction. The iron reacts with water and oxygen to form hydrated iron(III) oxide, which we see as rust.

Correct Answer :   Jorge E. Hirsch

The h-index is a commonly used measure that aims to encapsulate a scientist's productivity and impact into a single number. The metric is named for physicist J.E. Hirsch, who came up with the index in 2005 as a useful way to "characterize the scientific output of a researcher".

Correct Answer :   Polyethylene

Polycarbonates are the polymer widely used in making bullet proof material. Bullet proof glass is made by layering a polycarbonate material between pieces of ordinary glass in a process called lamination.

Correct Answer :   310

Kelvin is commonly used to measure very low and very high temperatures. So, the correct answer is 310 K. Note: The normal body temperature in Fahrenheit is 98.6° F which is equal to 37° C. Fahrenheit can be converted to Kelvin by first changing it to Celsius then adding 273.15.