In which case, what sort of conditions do they need for that to be an opportunity for learning? (teachermagazine.com.au)
• If you can not see the roots or bone, your vet can not either so X-rays are needed to see what sort of condition the bone support around each tooth is in. (avdc.org)
To produce a truly lethal human flu or other virus, you would need the same sort of conditions that produced virulent chicken flu. (discovermagazine.com)