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Class 4 Science Practice Question Answers - Adaptations in Plants

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FAQs on Class 4 Science Practice Question Answers - Adaptations in Plants

1. What are adaptations in plants?
Ans. Adaptations in plants refer to the special features or characteristics that help them survive and thrive in their specific environments. These adaptations can include physical, behavioral, or physiological changes that allow plants to overcome challenges such as extreme temperatures, lack of water, or competition from other organisms.
2. How do plants adapt to extreme temperatures?
Ans. Plants have various adaptations to cope with extreme temperatures. Some plants have thick waxy leaves or hairy surfaces that help reduce water loss and protect them from excessive heat. Others have the ability to tolerate freezing temperatures by producing antifreeze proteins or changing the composition of their cell membranes. Additionally, some plants have the ability to go dormant during extreme temperatures to conserve energy and survive until conditions improve.
3. What are some adaptations in plants to obtain water?
Ans. Plants have developed several adaptations to obtain water. They have root systems that can extend deep into the ground to access water sources. Some plants have specialized root structures, such as taproots or fibrous roots, which help them absorb water efficiently. Additionally, certain plants have adapted to arid environments by developing thick stems or leaves that can store water, like cacti.
4. How do plants adapt to compete for sunlight?
Ans. Plants have evolved various adaptations to compete for sunlight. They may have tall, slender stems that allow them to grow above other plants and reach sunlight. Some plants have broad leaves to maximize their surface area for sunlight absorption. In dense forests, plants may adapt by growing larger leaves or developing a climbing or vining habit to reach sunlight in the canopy. Additionally, certain plants can change the angle of their leaves or arrange them in a way that minimizes shading from neighboring plants.
5. Can you give an example of a plant adaptation?
Ans. One example of a plant adaptation is the presence of spines or thorns on the stems or leaves of certain plants, such as cacti. These spines help deter herbivores from feeding on the plants and also reduce water loss by providing shade and reducing air movement around the plant's surface. This adaptation allows the plants to survive in arid environments where water and nutrients are scarce.
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