Answer:
A.) the phospholipid heads can interact with water inside and outside the cell
Explanation:
Phospholipid heads are hydrophilic - they are attracted to water. The tails are hydrophobic - they repel water. In the lipid bilayer arrangement - the heads interact with the water inside and outside of the cell, whereas the tails cluster together to avoid the water. These properties are what create the lipid bilayer arrangement which creates a selectively permeable membrane.
Answer:
Homologous genes that are highly conserved.
Explanation:
Phylogenetic trees are diagrams that represent evolutionary relationship between organisms.
It is set to represent the hypothesis that a set of species evolved fro the same ancestor.
Anatomical similarities are considered in the construction of the trees.
However , two organisms can be placed in the same tree by comparing their genes.
If the two eukaryotes have genes that are highly conserved that similar.
decline in air, land and water pollution; no one to ensure proper disposal of toxic wastes; decreased destruction of habitats; increase in species extinction
