Explanation

ATP (Adenosine Triphosphate) stores and transfers energy released in catabolism to drive anabolic reactions.

It acts as the main energy currency of the cell.

Explanation

Reflex actions are rapid, involuntary responses controlled by the spinal cord, a part of the central nervous system (CNS).

The brain may be informed, but the action is completed via the spinal reflex arc.

Explanation

Wearing away refers to the gradual removal of material.

Erosion commonly occurs by natural forces like water, wind, or ice, especially in coastal areas.

Wearing away means دور پہننا

Erosion means کٹاؤ

Explanation

Lizards and snakes belong to the order Squamata, which is characterized by scaled reptiles.

This order includes both suborders: Lacertilia (lizards) and Serpentes (snakes).

Explanation

o-Nitrophenol is more acidic due to the strong electron-withdrawing effect of the nitro group and possible intramolecular hydrogen bonding, which stabilizes the conjugate base.

Though both have -NO₂, the ortho position enhances acidity more than the para position.

Explanation

Sabin vaccine is the oral polio vaccine (OPV) developed by Albert Sabin.

It contains live attenuated poliovirus.

It helps in building immunity against poliomyelitis.

Explanation

Dinoflagellates do have cellulose plates, but not impregnated with calcium — that’s a feature of some other protists, not typical dinoflagellates.

They are mostly unicellular and can form blooms (like red tides).

Explanation

1,2-Butadiene contains cumulene structure with adjacent double bonds (C=C=C), leading to sp-hybridization at the central carbon.

The terminal carbon atoms are sp²-hybridized, while the central carbon is sp-hybridized.

Explanation

Hormones are chemical messengers that travel through the bloodstream to target organs and tissues.

This is a key function of the circulatory system, helping regulate various bodily functions.

Explanation

Ozonolysis splits the double bond and gives:

• CH₃CH₂COCH₃ (Butan-2-one)
• CH₃CHO (Acetaldehyde)

These products match the cleavage of 3-methyl-2-pentene at the double bond.