You are part of which sphere of earth?

a)hydrosphere
b)atmosphere
c)lithosphere
d)biosphere

In which specialized organ of the plant would these cells most likely be found

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.

Describe two recent or ongoing space missions.