A. To provide food for the developing embryo. B. To directly participate in photosynthesis. C. To protect the embryo inside. D. To help the seed float in the air. 相关知识点: 试题来源: 解析 C。解析:种子的种皮的作用是保护内部的胚。选项A,胚乳是为发育中的胚提供食物的,不是种皮,A错误。
What is arable farming? What is extensive farming? What is plantation agriculture? What is PGR in horticulture? What is an epipetalous stamen? What is another name for a flowering plant? What is the origin of flowering plants? What is cotyledon of maize grain technically called?
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Taste is the perception produced or stimulated when a substance in the mouth reacts chemically with taste receptor cells located on taste buds in the oral cavity, mostly on the tongue. Test A procedure for critical evaluation; a means of determining the presence, quality, or truth of something...
Stratification is a treatment that involves temperature and or water. Scarification is a treatment where the seed coat is partially removed or damaged to make it easier for the radicle (root) to come out. This video shows you how to scarify seeds. Germination Codes Several organizations have ...
“He cautioned that a state-funded system would shatter the veryfibreof the man himself.” Noun ▲ The feel or texture of a surface or object “The former has a finefibre, but less seed, while the other a coarsefibre, but a larger quantity of seed.” ...
A cloak is a loose, sleeveless outer garment that drapes over the wearer's body, often fastened at the neck, while a coat is a long-sleeved outer garment that typically opens down the front and is more structured.
Red is great; hearts are better. Heart Beet Salad adapted from Mark Bittman’s Raw Beet Salad I’ve adapted this recipe for 2 adults and 2 young children, because that’s what I serve – If it makes too much for a romantic dinner for two, save the hearts you mangled and the parts ...
We have now added support for native Gmail integration. This integration uses OAuth, which is more secure than the basic IMAP/SMTP authentication. The migration steps for the users who have been using the basic auth would provided soon. 🌟 Changes in the processing of the auto-responders Auto...