DNA helps to build the genetic structure of organisms. DNA tells the cells of the organism how to act and what to do.
I hope that helped.
Answer:
Radiation and mutations can cause changes in the DNA but there arent substances. Ribonucleic acids can cause errors if they match with the wrong acid.
The major result of the inflammatory response is to infection or injury. Tissue level , inflammation is characterized by redness , swelling and itching which result from local immune , vascular and inflammatory cell responses .
Pathogen such as viruses, bacteria or fungi can causes of inflammation. External injuries like scrapes or damage through foreign objects effects of chemicals or radiation.The first and the earliest symptom of inflammation is silent phase which based on reaction of resident cells of the damaged tissue.
There are three main stages of inflammation which can vary from intensity or duration. such as Acute- swelling stage, sub acute- regenerative stage , regenerative stage, chronic- scar tissue maturation and remodeling stage.
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The penis delivers sperm<span> through the urethra. The two testicles (or testes) produce</span>sperm<span> and the male sex hormone testosterone. Nest to each testicle, the epididymis is a light‑colored tube where </span>sperm<span> is stored. ... In the human </span>reproductive<span> process, two kinds of sex cells, or gametes, are involved.
Though i must say, this is quite inapprrporiate.
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