<span>#1) What are saber teeth for these organisms?
Answer: After reading the statements presented above you can conclude that the saber teeth are Analogous structures for these organisms. The reason being that they can be considered as similar features. This usually happens when different organisms live in similar environments, they evolve in a similar way.
<span>I hope it helps, Regards.</span></span>
club mosses mosses ferns horsetails.
A small amount of nitrogen is fixed by lightning, but most of the nitrogen harvested from the atmosphere is removed by nitrogen-fixing bacteria and cyanobacteria (formerly called blue-green algae). The nitrogen cycle transforms diatomic nitrogen gas into ammonium, nitrate, and nitrite compounds.
The answer is Tyrosine. Conditionally essential amino acids is when non essentials amino acid becomes essential. In Phenylketonuria Tyrosine becomes a conditionally essential amino acid that must be provided in the diet. Phenylalanine accumulates and fails to convert to tyrosine during this condition.
