I can’t answer 7 because I can’t read the writing on the papers in the image. But for 8, it is important to classify living things because it makes it easier to study and understand the behaviors, lives, and the evolutionary progression of millions of life forms
I believe the answer is b.
Answer:
the best one is to wash your hands. you can also not touch your face as much. this will help stop the spread of germs.
living things need non living things to survive. Without food, water, and air, living things die. ... Plants use water from the soil, carbon dioxide from the air, and energy from sunlight to make their own food.
Answer:
The positive charge of the histone proteins get reduced due to the process of histone acetylation, thus making the wrapping of DNA around the histones less tightened. The loose connected DNA afterward associates with the transcription factors for the articulation of the genes situated in that area.
Generally, when there is no requirement of gene anymore, the acetyl groups from the histones get withdrawn by the activity of histone deacetylase enzyme (HDAC9) that makes the DNA tightly wrapped and inaccessible again. In case, when less expression of histone deacetylase enzyme occurs, the process of deacetylation fails to take place. This indicates that within an immune cell, at the time of infection, the inflammatory gene, which was made available does not get re-wrapped firmly around the histones.
