Melanin conveys some UV protection
The nucleolus is the central support structure
It can big increase speed and change direction
1. Naked Seeds, Gymnosperm means 'naked seed' and these were the earliest trees to evolve. They do not produce flowers and have seeds which are directly exposed to the air for wind pollination. Pine cones are one example. For ease you might think of the gymnosperms as conifers, such as yew and Scots pine.
The diploid is 30. The haploid is 15. Option C is most likely correct.
