Answer:
Explanation:
The history protein H2A, H2B, H3 and H4 forms an octamer ( 2 each of the four histones) around which the DNA is wrapped. They help in packaging the DNA allowing for compaction of the DNA
Linker histone H1 and a length of DNA (linker DNA) links two nucleosomes together and they also play essential role in chromatin strucrure, stabilizing it and also modulating accessibility of the DNA to biological processes.
Answer: Sugar metabolism
, DNA replication and lipid synthesis.
Explanation:
The pathways or the phenomenon is very fundamental that takes place in all the living organisms.
These processes are fundamental to life and is vital for the growth and development of the organism. The cell proliferation and growth is also very essential in case of bacteria.
hence, these processes are highly conserved from one species to another species.
<u>Answer</u>: Option b false
<u>Explanation</u>:
- Refrigerating or freezing foods <em>does not kill all or most of the bacteria</em> in the food as lowering the temperatures of the food only renders the microbes present in it <em>inactive</em>. As soon as the food is brought back to normal temperature, the microorganisms present in it become active again.
- The advantage of freezing food is only limited to the fact that once the food is frozen, all the microbes be it fungus, bacteria etc. become inactive and do not multiply and thus, freezing prolongs the shelf life of food, however once this food is thawed the micro organisms again become active and start multiplying and can easily cause food borne illness.
- So, the only way to kill the micro organisms present in the food is to cook the food to correct temperatures and not freezing.
Answer: A decrease in a number of trees—plant new ones and protect existing trees
The loss of a bird habitat—provide nesting boxes
An endangered aquatic species— regulate recreational activities such as boating and fishing
A increase in air pollution— encourage public transportation
I hope this helps!
<span>Water is called the Universal Solvent. Water is regarded as being versatile because of its capability to dissolve many substances which is expected because of its polarity. Water's composition contributes to its solvent abilities, with one side having a negative electrical charge(oxygen) and the other a positive charge(hydrogen) this allows it to attract other molecules thus dissolving them. </span>
