Without decomposers, dead leaves, dead insects, and dead animals would pile up everywhere. Imagine what the world would look like! More importantly, decomposers make vital nutrients available to an ecosystem's primary producers—usually plants and algae.
Answer:
It could not exist without bacteria.
A living entity is referred to as an organism. In order of size: cell, tissue,organ,organism.
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.
I believe its aggression?