Question
| $'A'$ | $'B'$ | |
| $Q.1$. Biotic components | $(a)$ | temperature |
| $Q.2$. Abiotic Component | $(b)$ | Bacteria |
| $(c)$ | Paper | |
| $'A'$ | $'B'$ | |
| $Q.1$. Biotic components | $(a)$ | temperature |
| $Q.2$. Abiotic Component | $(b)$ | Bacteria |
| $(c)$ | Paper | |
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| Column I | Column II | ||
| Q.1. | Human heart | p. | Bean-shaped |
| Q.2. | Human kidney | q. | Four-chambered |
| r. | Long-coiled tubule |
| Column I | Column II | ||
| Q.1. | Barrier method in male | p. | Oral pills |
| Q.2. | Chemical method | q. | Condom |
| r. | Fallopian tubes blocked |
| 'A' | 'B' | |
| $Q.1$. Ozone | $(a)$ | Water pollution |
| $Q.2$. Accumulation of pesticides in the water | $(b)$ | Biological magnification |
| $(c)$ | A deadly poison | |
| Column I | Column II | ||
| Q.1. | Oviduct | p. | Disc-like special tissue develops between embryo and the uterus wall. |
| Q.2. | Placenta | q. | Fertilisation |
| r. | Testosterone |
| Column I | Column II | ||
| Q.1. | Pancreas | p. | Alkaline bile |
| Q.2. | Stomach | q. | Enzyme trypsin |
| r. | Beginning of protein digestion |
| Column I | Column II | ||
| Q.1. | Villi | p. | Trachea |
| Q.2. | Cartilagenous ring | q. | Helps in breathing |
| r. | Absorption |
| Column I | Column II |
| Q.1. Sodium nitrite | p. $NaNO _2$ |
| Q.2. Sodium nitrate | q. $NaNO _3$ |
| r. $Na _2 CO _3$ |
| Colum $A$ | Colum $B$ |
| $Q.1.$ Watt | $a.$ Volt |
| $Q.2.$ Potential difference | $b.$ Electrical energy |
| $c.$ Volt×Ampere |
| Column I | Column II | ||
| Q.1. | Life of unfertilised egg | p. | Q.1. 0 to 12 years |
| Q.2. | Puberty in girls | q. | About 1 day |
| r. | At least 9 months |
| Column I | Column II | ||
| Q.1. | Adrenaline | a. | Regulates metabolism for body growth. |
| Q.2. | Thyroxin | b. | Regulates blood sugar level |
| c. | Increases breathing, heart beats. |