I believe they are made through protein synthesis. The Cyclin is a family of proteins that control the progression of cells through the cell cycle by activating cyclin-dependent kinase (Cdk) enzymes. Through phophorylation, Cdks signal the cell that it is ready to pass into the next stage of the cell cycle. Cyclin-Dependent Protein Kinases are dependent on cyclins, another classof regulatory proteins. Cyclins bind to Cdks, activating the Cdks to phosphorylate other molecules.
Sexual reproduction the parents pass their dna to their children, the offspring end up varied since there are two sources of dna. Asexual reproduction would provide genetically identical offspring, which would be identical to the parent as well.
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).
Earth could not have supported the lives or humans and other living things. There was no oxygen in the atmosphere, and Earth's surface was extremely hot
Answer:
a earthquake happens when the plate rub together therefor causing the loud and very very hard vibrations trust me i live in Los Angeles they are no fun at all
Explanation:
