Explanation

The hypothalamus is the primary control center for body temperature regulation,

And it works in conjunction with blood vessels near the skin surface (which can adjust blood flow to control heat loss)

And skeletal muscles (which can generate heat through shivering). 

Explanation

Antigens are typically glycoproteins or lipopolysaccharides found on the surface of pathogens.

These structures are recognized by the immune system and trigger an immune response.

Explanation

A disaccharide is a sugar molecule composed of two monosaccharides joined together.

Fructose is a monosaccharide (a single sugar unit), not a disaccharide.

Therefore, it is the exception among the given options. 

Explanation

 The primary function of carbohydrates in the human body is to provide energy.

They are broken down into glucose, which is the body's main source of fuel for cells, tissues, and organs.

Excess glucose is stored in the liver and muscles for later use. 

Explanation

Tumors secreting placental alkaline phosphatase (PLAP) are commonly associated with germ cell tumors, particularly dysgerminomas.

Dysgerminomas are malignant ovarian tumors

This tumor typically occurs in young women.

They often produce elevated levels of PLAP, which can be detected in blood tests.

Explanation

Mitochondrial DNA is the circular chromosome 

The mitochondrial genome is built of 16,569 DNA base pairs

The mtDNA is double-stranded.

It contains 37 genes that encode 13 proteins, 22 tRNAs, and 2 rRNAs.

These organelles, found in all eukaryotic cells, are the powerhouse of the cell.

Additional information:

The nuclear DNA is linear

The nuclear genome is made of 3.3 billion DNA base pairs.

Explanation

Very high frequency is the ITU designation for the range of radio frequency electromagnetic waves from 30 to 300 megahertz,

with corresponding wavelengths of ten to one meter.

ND17-7-2023

Explanation

The ionosphere of the atmosphere helps in radio transmission.

The ionosphere is a critical link in the chain of Sun-Earth interactions.

This region is what makes radio communications possible.

This is the upper limit of our atmosphere.

It extends from the top of the thermosphere up to 10,000 km (6,200 mi).

Explanation

Perhaps the most familiar example of resonance in everyday life is swinging on a playground swing.

The first push or pump sets the swing in motion.

Each subsequent push or pump is delivered at just the right time to increase the amplitude of swing.

Explanation

The –SH group is present in thiols. 

A thiol is a functional group where a sulfur atom is bonded to a hydrogen atom.

The -SH group is analogous to the -OH group in alcohols, except that sulfur replaces oxygen.