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The woolly lousewort's flowers are surrounded by thick hairs. Why is the flower kept at a temperature that is warm enough for its seeds to germinate?

1) The hairs retain the heat from the sun
2) The flower is located in a warm environment
3) The flower generates its own heat
4) The seeds require a warm temperature to germinate

User Danneu
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1 Answer

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Final answer:

The woolly lousewort's seeds require a warm temperature to germinate, which is achieved due to the insulating effect of thick hairs surrounding its flowers. This adaptation, along with mechanisms like seed dormancy and seed coats, ensures seeds remain viable until conditions are favorable for germination.

Step-by-step explanation:

The woolly lousewort's flowers are surrounded by thick hairs, which help maintain a warm temperature for the seeds. Seeds in many species, including the woolly lousewort, require specific conditions to germinate. For the woolly lousewort, warmth is crucial since the seeds need to be at a warm temperature to successfully germinate. In contrast, other seeds might need different treatments such as vernalization, which is the exposure to cold temperatures. The protective mechanisms like thick hairs around the flowers of woolly lousewort are an adaptation to ensure the plant's survival and propagation.

The ability of seeds to remain dormant through unfavorable conditions such as cold weather is a testament to how plants have evolved strategies like thick seed coats, known as the testa, and dormancy, ensuring that when conditions are favorable, as found after events like forest fires or heavy rains, successful germination can occur. These adaptive mechanisms are significant for long-term survival and reproduction in many plant species, including the woolly lousewort.

User Sannu
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