Explanation

• Mercury is a silvery-white liquid metal that was traditionally used in clinical thermometers due to its high coefficient of expansion.
• It allowing for accurate temperature measurements.

Explanation

Gregor Mendel (from Austria) is called the Father of Genetics for his experiments on pea plants.

He discovered the basic principles of heredity and inheritance through his work.

Explanation

Explanation

The nephron is the microscopic structural and functional unit of the kidney

There are almost 1000000 of nephrons in each kidney in the human body

How it Works 

Filtration:

Blood enters the glomerulus, where its smaller components are filtered into the Bowman's capsule.

Reabsorption:

As the filtered fluid moves through the renal tubule, essential substances (water, minerals, nutrients) are reabsorbed into the bloodstream.

Waste Concentration:

The remaining fluid, now concentrated with wastes and excess water, becomes urine.

Explanation

A converging lens (usually convex) bends parallel rays of light to meet at a single point (focus).

It is commonly used in magnifying glasses and optical instruments.

Explanation

The SI unit of temperature as per the International System of Units is Kelvin.

It is represented by the symbol  K.

Note:

Celsius is currently a derived unit for temperature in the SI system, Kelvin is the base unit.

Explanation

The Metric System of Measurements uses the mass units: gram (g), kilogram (kg), and tonne (t). 1000 g = 1 kg. 1000 kg = 1 tonne.

Mass was first defined in 1795

Symbol: M

Explanation

• There is no such nitrogenous base as "Tracil or Uracil".

The nitrogenous bases are:

1. Adenine (A)
2. Thymine (T)
3. Cytosine (C)
4. Guanine (G)

Explanation

The Central Nervous System (CNS) comprises the:

These two structures are the core of the nervous system, 

• The brain controls how we think, learn, move, and feel.
• The spinal cord carries messages back and forth between the brain and the nerves that run throughout the body..

Explanation