There are many human activities that could contribute significantly to the creation of dead zones, and here are some of them:
1. the use of chemical fertilizers
2. urban land use
3. coastal littering, as well as runoff from sewage
4. use of harmful phosphates in detergents
Dead zones are places in waters on Earth where there is so little oxygen left due to pollution that marine life cannot survive there.
<span>Negatively charged R-groups in the primary structure.
This is because nickel acts as a cation, therefore you would be attracting anions, in this case it would be on the proteins that would be binding to the column. Once they bind to the matrix a was buffer of high salts can elute the proteins.</span>
I believe that the answer is C.
Answer:
The arrow labelled X is ribosome.
Explanation:
Ribosomes can be described as structures which are the protein manufacturing unit.
For a protein to form, The DNA forms mRNA by the process of transcription. The start and stops codons are attached to the mRNA and it travels outside the nucleus into the cytoplasm where ribosomes are present.
The ribosomes are the site where the process of translation takes places. The process of converting RNA into proteins is termed as translation.
The correct answer of the given question above is the first option. The period in which eurypterids swim the oceans and the first jawed fish and vascular plants evolve is in the Silurian Period. This is the period that <span>occurred from 443 million to 416 million years ago and was the third period of the PaleOzoic Era. Hope this answer helps.</span>
