Reproduction in Organisms Quiz

<p>Because two male gametes are involved</p> Signup and view all the answers

<p>They have only small roots and can extract nutrients from the surrounding water</p> Signup and view all the answers

<p>Hydrophytes are adapted to survive in excess water by having thin, flat leaves with large air spaces inside for buoyancy, and requiring only small roots as they can extract nutrients from the surrounding water through their tissues.</p> Signup and view all the answers

<p>The endosperm in angiospermic ovule is considered more efficient in supplying food materials to the developing embryo because its cells are triploid due to double fertilization.</p> Signup and view all the answers

<p>The process of fertilization in a flowering plant is referred to as double fertilization because two male gametes from the pollen tube fertilize both the egg cell and the polar nuclei in the embryo sac.</p> Signup and view all the answers

<p>Hydrophytes fix sunlight and ensure the survival of an aquatic ecosystem by providing habitat and food for aquatic organisms, and by contributing to oxygenation of the water through photosynthesis.</p> Signup and view all the answers

<p>Hydrophytes adapt to their aquatic environment by having specialized tissues for extracting nutrients from the surrounding water, and by developing buoyant leaves with large air spaces to stay afloat.</p> Signup and view all the answers

<p>To give them buoyancy and adapt to their aquatic environment.</p> Signup and view all the answers

<p>By having small roots and extracting nutrients from the surrounding water through their tissues.</p> Signup and view all the answers

<p>The cells of endosperm are triploid due to double fertilization, making them more efficient in supplying food materials to the developing embryo.</p> Signup and view all the answers

<p>Because two male gametes from the pollen tube are involved in the process.</p> Signup and view all the answers

<p>They fix sunlight and ensure the survival of the aquatic ecosystem.</p> Signup and view all the answers