Which alga exhibits a haplo-diplontic life cycle?
- AEctocarpus
- BVolvox
- CSpirogyra
- DChlamydomonas
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Which of the following statements is $NOT$ correct?
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The value of the series $x \log _e a + \frac{x^3}{3!} (\log _e a)^3 + \frac{x^5}{5!} (\log _e a)^5 + \dots$ is
The circles $x^2 + y^2 - 2x - 4y = 0$ and $x^2 + y^2 - 8y - 4 = 0$:
Match List-$I$ with List-$II$ :
List-$I$ (Defects) List-$II$ (Shown by) $a$. Frenkel defect $i$. Non-ionic solids and density of the solid decreases $b$. Schottky defect $ii$. Non-ionic solids and density of the solid increases $c$. Vacancy defect $iii$. Ionic solids and density of the solid decreases $d$. Interstitial defect $iv$. Ionic solids and density of the solid remains constant
Choose the correct answer from the options given below :
| List-$I$ (Defects) | List-$II$ (Shown by) |
| $a$. Frenkel defect | $i$. Non-ionic solids and density of the solid decreases |
| $b$. Schottky defect | $ii$. Non-ionic solids and density of the solid increases |
| $c$. Vacancy defect | $iii$. Ionic solids and density of the solid decreases |
| $d$. Interstitial defect | $iv$. Ionic solids and density of the solid remains constant |
Choose the correct answer from the options given below :
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