DNA is transcribed to RNA, which is translated into proteins. So DNA is in charge of making proteins (this narrows it down to either A or D). When there is a change in a person's genetic information, it will not result in a contagious disease. Those are usually caused by bacteria or viruses. A change in DNA could potentially result in a genetic disease. Therefore, answer A is correct. Hope this helps! :)
Answer:
Overfishing is the level of excessive capture of marine animals.
Explanation:
Overfishing poses a great threat to marine biodiversity and ecological balance. The abundance of populations of large predators such as cod, tuna and swordfish has decreased by 90% due to overfishing. If we continue fishing at the current rate, scientists estimate that by 2048 any fish in the sea will have disappeared. Our seas are vulnerable and sensitive and a sudden and significant change in the number of individuals of a species can put great pressure on their ecological environment and a change in the balance of the oceans, and even in the food chain of other species.
Answer:
D. They engulf and destory bacteria.
Explanation:
"Phagocytes are a type of white blood cell that use phagocytosis to engulf bacteria, foreign particles, and dying cells to protect the body."
hope this helps :)
Answer:
Explanation:
All living organisms possess genetic material in form of DNA that holds the information needed to produce useful products (proteins). Amino acids are the building blocks of these proteins. They form a sequence that specifies a particular protein. On the other hand, these amino acid sequences is determined by the sequence of nucleotides in the DNA.
The way by which this information held in DNA is expressed is called GENETIC CODE. The genetic code consists of all the triplet nucleotide called CODONS that specifies amino acids in all living things. This genetic code is Universal i.e. it is employed by virtually all living organisms. A particular CODON specifies the same amino acid in all living organisms. This shows the evolutionary relationship between all living organisms.
Hence, an amino acid sequence can show which sequence of nucleotides encodes it in the genetic code. Since it is the same in all living organisms, it can point out which organism shares evolutionary history.