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5:22
YouTube
The Organic Chemistry Tutor
Protein Structure - Primary, Secondary, Tertiary, & Quarternary - Biology
This biology video tutorial provides a basic introduction into the four levels of protein structure - primary, secondary, tertiary and quarternary structure. The ...
783.2K views
Sep 28, 2018
Firefighters Battling Blaze
Firefighters are battling a blaze north of Christchurch that has spread from a hedge to a shed. Video credit. Jack Shewell | Chris Lynch
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Chris Lynch
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YONKERS FIRE: Two firefighters were injured while battling a blaze at Yonkers Building Material Company. The chief says the damage could have been worse due to chemicals and supplies. - https://bit.ly/47N6pqh | News 12 Hudson Valley
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News 12 Hudson Valley
18K views
2 weeks ago
Birmingham firefighters are battling a massive blaze on the city’s Southside. The fire erupted shortly before 6 a.m. Friday in the area of the 1300 block of 20th Street South, near Cobb Lane. No injuries have been reported. Updates to come. 🎥: Madison Underwood, Ramsey Archibald /Al.com ✍️: Carol Robinson | al.com
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al.com
32.9K views
4 weeks ago
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