(i) Dermal or Epidermal tissue system
(ii) Ground tissue system
(iii) Vascular tissue system

(i) Prohibit killing and hunting of specified animals.
(ii) Constitute sanctuaries, national parks, and closed areas for wild life conservation.

It refers to afforestation programmes which includes planting and protecting trees with multiple uses and helps in restoration of green cover.

(i) Cancer is an abnormal and uncontrolled division of cells that invade and destroy surrounding tissue forming a tumor or neoplasm (new growth).
 

The two important properties of stem cells that differentiate them from other cells are:
(i) Its ability to divide and give rise to more stem cells by self-renewal
(ii) Its ability to give rise to specialised cells with specific functions by the process of differentiation.

Decarboxylation means removal of CO₂

Paleobotany is derived from Greek words paleon that means "old" and botany the study of plants. It is the branch of Paleontology that deals with recovery and identification or plant remains of geological past.

(i) 2 Mg + O₂ ⟶ 2 MgO ⟶ Combination reaction
(ii) 
(iii) Ammonium hydroxide reacts with nitric acid.
HNO_3(aq) +NH₄OH_(aq) ⟶ NH₄NO_3(aq)+H₂O_(l) - Neutralization reaction

Solubility = \(\frac{Mass \ of \ the \ solute}{Mass \ of \ the \ solvent}\) x 100
= \(\frac{5}{100}\) x 100
= 5 g

Electroplating is a method of coating one metal over another metal by passing electric current.

(i) Components of blood: The blood consists of two main components. The fluid plasma and the formed elements (blood cells) which are found suspended in the plasma.
(ii) Blood cells are classified into erythrocytes, leucocytes and platelets.

(i) Aqueous solution:
a) The solution in which water acts as a solvent is called aqueous solution.
b) Example: common salt in water, Copper Sulphate in water.
(ii) Non - Aqueous solution:
a) The solution in which any liquid, other than water, acts as a solvent is called non-aqueous solution.
b) Example: Sulphur dissolved in carbon disulphide, Iodine dissolved in carbon tetrachloride

Lungs are attached to the two bronchi.

Glycolysis is the common step in both aerobic and anaerobic pathway.

Gamma radiation

The minimum distance required to hear an echo is 1/20^th part of the magnitude of the velocity of sound in air.
i.e.  \(\frac{1}{20} \times 344 = 16.7m\)

One calorie is defined as the amount of heat energy required to raise the temperature of 1 gram of water through 1^o C.

Conditions necessary for rusting of iron:
(i) Iron is exposed to moist air.
(ii) Presence of water droplets in the atmosphere.
(iii) Presence of Oxygen.

(i) The radio active by products cannot be disposed easily.
(ii) Improper storage of nuclear waste can cause contamination of the environment.

(i) Letters 'B' and 'D' represent the family of alkynes.
(ii) Letters 'E' and 'F' do not represent any hydrocarbon.
(iii) 'C' can be converted into 'A' by passing hydrogen (H₂) in the presence of Ni at 473 K.

(a) The most reactive element is 'B' as it has displaced both 'A' and 'C' from their compounds
(b) The least reactive element is 'C' as it has been replaced by both 'A' and 'B'.

All human beings have blood which is of uniform composition. Blood is red in colour due to presence of red blood cells containing the respiratory pigment hemoglobin. Therefore colour of blood will be identical in all human beings irrespective of external appearance.