Tyrosine I'm pretty certain.
Well the surface area changes because there are two dimensional which are flat and 3-d which would be geometric. It is important because if you have to take volume or area you would know why there 2-d and 3-d are important.
hope that helped
<span>nebula--------» Protostar----------» Main Sequence----------» Red Giant---------»White Dwarf</span>
Answer:
when two organisms exchange information and reproduce
Answer:
Single-cell organisms
Explanation:
In 1735, Linnaeus introduced a classification system with only two kingdoms: animals and plants. Linnaeus published this system for naming, ranking, and classifying organisms in the book "Systema Naturae". In the epoch that Linnaeus created this system, single-cell organisms such as bacteria and protists were almost unknown. In 1866, E. Haeckel added a category including both bacteria and protozoa, thereby adding a category formed by single-cell organisms (different from animals and plants). During the 1900-1920 period, bacteria were classified as a separated kingdom named 'prokaryotes'. The current three-domain classification system was introduced by C. Woese in 1990. In this system, all forms of life are divided into three different domains: archaea, bacteria, and eukaryote domains (this last composed of protists, fungi, plants and animals).
