A. Plants could emit stress signals. B. Plants could scream intentionally. C. Plants could be sensitive to sound. D. Plants could produce ultrasonic sounds. 相关知识点: 试题来源: 解析 D Hadan's study found that tomato plants emit ultrasonic sounds when their stems are cut. This indicates...
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The carbon footprint created by four years of deforestation is equal to the projected carbon footprint of every single air flight in the history of aviation up to the year 2025 [source: Kristof]. Let's break that down into simple logic: Trees absorb carbon dioxide. So, fewer trees means ...
this will limit the growth rate for the plant. In nature, the nitrogen, phosphorous and potassium often come from the decay of plants that have died. In the case of nitrogen, the recycling ofnitrogenfrom dead to living plants is often theonlysource of nitrogen in the soil. ...
Contributes to sustainable development Wind power is the most ef For these reasons, producing electricity through wind energy and its efficient use contributes to sustainable development. Wind energy does not emit toxic substances or contaminants into the air, which can be very damaging to the environ...
Where do greenhouse gas emissions come from? Total greenhouse gas emissions come from several sources. Some result from natural processes; for example, volcanic eruptions and wildfires release CO2 and other gases into the atmosphere, while the decomposition of plants and animals releases CH4. But ...
人体内能产生一种抗病毒的物质--干扰素，它能抑制病毒的复制，在人患了病毒性肝炎或严重的流行性感冒时，可以用干扰素来治疗。从上述内容分析，用干扰素来治疗时，属于___ 疫。干扰素是否是抗体？___。
These bugs feed onplant sap. They obtain this by inserting their straw-like mouthparts into the stems and leaves. Are They Dangerous? Planthoppers are small insects that feed on plants. While they may look harmful, they generally don’t pose a danger to humans. ...
and personal goals. Whether you’re using LEDs, HIDs, or even plasma lights, each option has its strengths and weaknesses. The key is to match the light to your grow room and plants’ needs. Once you do, you’ll be on your way to a successful harvest with happy, healthy plants. Hap...
carbon dioxide between the oceans and the atmosphere. Animals and plants also emit CO2 through the process of respiration (breathe in oxygen, breathe out CO2). And when these plants and animals decompose, organisms within the soil respire to produce energy and emit more CO2 into the atmosphere....