1. Balances fluids.
2. Structure. Support for tissues.
I think it’s C explanation : i learned this a while ago
Frequent inbreeding within a species can result in extinction of the species. The recurring set of available genes during reproduction allows for decreased genetic diversity.
Are there any multiple choice answers to choose from?
Modern stromatolites – living fossils. Originating over 3 billion years ago, stromatolites are the oldest known fossils (timeline). Fossilized stromatolites were laid down as colonial structures built by photosynthesizing Cyanobacteria and other microbes.