Mixing
花被
花被是花萼和花冠的总称，位于雄蕊和雌蕊的外围，作为引诱昆虫来为花传粉和保护昆虫传粉采蜜的工具，根据各种植物的花的不同构造，可以分为：
- 两被花—具有明显的花萼和花冠，并有显著的区别，例如桃、紫荆等；
- 单被花—花萼和花冠合而为一，无法区别开；
- 萼状花被：单被花的花被绿色，类似花萼，例如大麻；
- 冠状花被：单被花的花被彩色，类似花冠，例如荞麦；
- 无被花—没有花萼和花冠，一般都是风媒花，如柳树、小麦等。
參見
- 花被片
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Information security
This article is part of a series on Information security Related security categories Internet security Cyberwarfare Computer security Mobile security Network security Threats Computer crime Vulnerability Eavesdropping Malware Spyware Ransomware Trojans Viruses Worms Rootkits Bootkits Keyloggers Screen scrapers Exploits Backdoors Logic bombs Payloads Denial of service Defenses Computer access control Application security Antivirus software Secure coding Secure by default Secure by design Secure operating systems Authentication Multi-factor authentication Authorization Data-centric security Encryption Firewall Intrusion detection system Mobile secure gateway Runtime application self-protection (RASP) v t e Information security , sometimes shortened to InfoSec , is the practice of preventing unauthorized access, use, disclosure, disruption, modification, inspection, recording or destruction of information. Th...
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