Ultraviolet radiation is the primary cause of sunburns
Answer:
H1
Explanation:
Histones H2A, H2B, H3 and H4 are known as the core histones which means that there are building nuclesome. H1 is known as the linker histone which binds to the "linker DNA" region between nucleosomes, helping stabilize the chromatin fiber. The linker histone H1 binds the nucleosome at the entry and exit sites of the DNA, thus locking the DNA into place and allowing the formation of higher order structure.
Answer:
(1) they keep toxic substances out of the cell.
(2) they contain receptors and channels that allow specific molecules, such as ions, nutrients, wastes, and metabolic products, that mediate cellular and extracellular activities to pass between organelles
A prokayrotic cell has no nucleus
Kingdom.
The organization is:
Kingdom
Phylum
Class
Order
Family
Genus
Species
You can remember it with this acronym:
King Philip Came Over For Good Soup
