Osmosis of Water Across the Membrane. Osmosis is the tendency for water molecules to move from where there is a higher concentration to where there is a lower one. ... The cell membrane helps to regulate and slow down the flow of water into the cell. This is yet another way that the cell membrane helps maintain homeostasis
The four have molecular similarities, but have their own unique traits. The tree indicates that there was a common ancestor (the V at the base). Biomolecular differences are the basis for each branch, but there are similarities between all four organisms. The branches support the idea that each organism has unique traits as determined by their unique DNA and amino acid sequences.
1.
I would say individual biodiversity. I have read that there are variations in genes so genetic variation is a biodiversity along with species diversity and ecosystem biodiversity. In fact, genetic diversity is similar to species diversity. Species have their own genetic variation.
2.
True. We are losing biodiversity at a higher rate than ever before.
