Which kingdom represents both multi & unicellular organisms?

Ectocarpene is a volatile, sperm cell-attracting material released by the eggs of the seaweed ectocarpus siliculosus. its constitution is all the double bonds are cis, and the absolute configuration of the chirality center is s. draw a stereochemically accurate representation of ectocarpene.

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring

What are some possible consequences of preventing prescribed burns and natural wildfires