Plants of this group are diploid and well adapted to extreme conditions. They grow bearing sporophylls in compact structures called cones. The group in reference is
1. monocots
2. dicots
3. pteridophytes
4. gymnosperms
The giant redwood tree (Sequoia sempervirens) is a/an
1. angiosperm
2. free fern
3. pteridophyte
4. gymnosperm