7. This satellite photograph shows an area in Alaska after a fire occurred. River
Area of the
Which statement best describes the most likely effect the fire had on the river in the
12 months after it occurred?

Creation of an unnaturally uniform sample to represent a diverse populationcan be avoided by: a. including only willing b. asking another scientist for .c. choosing only identical participants. d. selecting individuals at random.

Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?

Achild is suffering from fever but the doctor cannot immediately pinpoint the alignment on the basis of this one symptom explain why also mention other two such general symptoms