Cell vs. virus: A battle for health - Shannon Stiles
3:59
YouTubeTED-Ed
Cell vs. virus: A battle for health - Shannon Stiles
How does your body fight a virus? Take a look inside your cells to witness how they produce antibodies and fight to keep you healthy. -- All living things are made of cells. In the human body, these highly efficient units are protected by layer upon layer of defense against icky invaders like the cold virus. Shannon Stiles takes a journey into ...
已浏览 1226.9万 次2014年4月17日
Roblox Music Codes
100+ NEW ROBLOX MUSIC CODES! 🔥 MAY 2025 [AFTER UPDATE] [WORKING] [SIGMA]
8:57
100+ NEW ROBLOX MUSIC CODES! 🔥 MAY 2025 [AFTER UPDATE] [WORKING] [SIGMA]
YouTubezelvics
已浏览 112.3万 次2023年3月12日
100+ NEW ROBLOX MUSIC CODES! 🔥 JUNE 2024 [AFTER UPDATE] [WORKING] [MASHA]
12:06
100+ NEW ROBLOX MUSIC CODES! 🔥 JUNE 2024 [AFTER UPDATE] [WORKING] [MASHA]
YouTubeBoped
已浏览 29.8万 次2024年5月15日
100+ NEW ROBLOX MUSIC CODES/ID(S) (AUGUST 2024) [WORKING CODES]
8:04
100+ NEW ROBLOX MUSIC CODES/ID(S) (AUGUST 2024) [WORKING CODES]
YouTubeRoblox Song
已浏览 23.5万 次2024年8月13日
热门视频
What is a Virus? | Breakthrough
1:41
What is a Virus? | Breakthrough
YouTubeNational Geographic
已浏览 48.6万 次2015年10月26日
Viruses (Updated)
6:49
Viruses (Updated)
YouTubeAmoeba Sisters
已浏览 447.7万 次2018年5月22日
I Downloaded The Most Dangerous Computer Viruses 8
22:44
I Downloaded The Most Dangerous Computer Viruses 8
YouTubeCrypto NWO
已浏览 68万 次2023年10月8日
Roblox Game Codes
*43 NEW CODES* ALL 2025 Roblox Promo Codes For ROBLOX FREE Items and FREE UGC 2025 (UPDATED)
10:46
*43 NEW CODES* ALL 2025 Roblox Promo Codes For ROBLOX FREE Items and FREE UGC 2025 (UPDATED)
YouTubevenTeesi
已浏览 48.2万 次5 个月之前
How To Redeem Roblox Codes - Full Guide
1:02
How To Redeem Roblox Codes - Full Guide
YouTubeGuideRealm
已浏览 19.5万 次11 个月之前
How to Redeem Roblox Codes - Mobile & PC
1:45
How to Redeem Roblox Codes - Mobile & PC
YouTubeGauging Gadgets
已浏览 42.1万 次2022年5月21日