The samples would be examined microscopically for evidence of living organisms, and then a variety of plants and animals would be exposed to lunar material to determine whether they were affected by it.
(The samples; would be examined microscopically; for evidence of living organisms) (a variety of plants and animals; would be exposed; to lunar material; to determine whether they were affected by it; T:then)
The samples a variety of plants and animals
would be examined microscopically would be exposed
for evidence of living organisms
to lunar material to determine whether they were affected by it T:then