G-C A-U therefore it’s “A.uracil”.
Outbreak of diseases may cause by pathogens such as such as bacteria, viruses, fungi, and parasites. On the cell surface of these organisms proteins are present called antigens. On entering the antigen in the body, the immune system produce antibodies against antigen. It is better to test for disease antigens in sudden outbreaks because these antigens confirms the origin of the outbreak before the pathogen get destroyed by antibodies.
Answer:
All living organisms respire. Cells need and use the energy that is formed through this process to assist with life processes in order for organisms to survive and reproduce. Oxygen and carbon dioxide are the main gases involved in aerobic respiration. These conditions are called gas exchange surfaces.
Explanation:
Answer: double helix
Explanation: The double helix of DNA is, like its name implies, in the shape of a helix which is essentially a three dimensional spiral. The double comes from the fact that the helix is made of two long strands of DNA that are intertwined—sort of like a twisted ladder.
Decrease because they become compacted due to the process of compaction and cementation brought about by the heat and pressure.
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