Explanation

Conjunctival follicles are commonly associated with Trachoma

Trachoma is a chronic conjunctivitis caused by Chlamydia trachomatis infection. Conjunctival follicles are a hallmark feature of trachoma

And are often seen on the inner surface of the eyelids and the conjunctiva.

Explanation

The route through which food is directly given into the veins is called parenteral nutrition.

This method involves delivering nutrients, such as:

• carbohydrates,
• proteins,
• fats,
• vitamins,
• minerals,

This mineral is directly delivered into the bloodstream through a catheter inserted into a vein.

It's typically used when:

• a person cannot consume food orally 
• absorb nutrients through the digestive system adequately.
  

Explanation

• Contractile vacuoles are specialized organelles found exclusively in protozoa, such as amoebae and paramecia.
• They are responsible for osmoregulation, removing excess water and ions from the cell to maintain proper cellular turgor pressure.
• Contractile vacuoles are able to contract and expand to expel water and waste from the cell.

Explanation

• Adrenaline requires a cell surface receptor for its action.
• Adrenaline, also known as epinephrine, acts through cell surface receptors called adrenergic receptors to exert its physiological effects.

Explanation

Echinodermata (like starfish, sea urchins) are marine animals and do not include parasites.

In contrast, groups like Nematoda, Platyhelminthes, and Protozoa include many parasitic species.

Explanation

Explanation

A photometer measures the intensity of light absorbed or transmitted by pigments at different wavelengths.

It is used to study absorption spectra, especially in photosynthesis research.

Explanation

A glycosidic bond is a covalent bond that links two monosaccharides to form a disaccharide (e.g., glucose + fructose = sucrose).

This bond is formed through a condensation (dehydration) reaction, releasing a molecule of water.

Explanation

In cockroaches, the gizzard (also called proventriculus) is a muscular organ that grinds food with the help of chitinous teeth.

It lies after the crop, which stores food temporarily before it enters the gizzard for mechanical digestion.

Explanation

Archaebacteria, especially thermophiles, can survive extreme conditions, tolerating temperatures up to 120°C.

They are often found in hot springs, hydrothermal vents, and other extreme environments.