Answer:
You can get a vaccination to help avoid getting Hep A
Also you should avoid food and water that have been touched by people with hep a, because the virus can spread through contaminated foods. Btw, you can also catch the virus from contact with someone with hepatitis a.
also, you should wash your hands often, especially after touching stuff like restaurant bathroom doorknobs, the safety rails on the side of stairs, bubble gum/toy dispensers, office light switch, etc
Answer:
A) Tissue
Explanation:
Cells are the basic and fundamental units of all living organisms. Plants, like every other multicellular living organisms, are composed of cells that perform different functions. A group of cells that perform similar functions make up or form TISSUES, tissues that work together form the ORGAN, organs that work together to perform same function form the ORGAN SYSTEM.
In plants, sieve tubes and companion cells work together to carry out a similar task in plants, which is to transport nutrients and sugar inside the plant. Since sieve tubes and companion cells work together to fulfil same task, they collectively form a tissue in plants called PHLOEM tissue.
Answer:
It tells when a fossilized organism was born. It tells where a fossilized organism was found.
Explanation:
Attachment of acetyl groups to histone promotes transcription.
This mechanism is known as histone acetylation and it is a part of gene expression. The lysine residues inside the N-terminal tail from the histone core of the nucleosome are the substrate for enzymes-histone acetyltransferase which transfer an acetyl functional group from another molecule. Acetylation removes the positive charge on the histones and thus decrease the interaction negatively charged phosphate groups of DNA. As a result, chromatin becomes more relaxed structure and transcription is promoted.
