Answer:
The ATP molecule shown consists of a base,<em> Adenine</em>, and a chain of three phosphates.
Explanation:
ATP can be described as a molecule which is the main energy source for cells of an organisms body. ATP is made up of a nucleotide base which is adenine and three phosphates attached to it hence the name adenine triphosphate.
The energy is released from an ATP molecule by breaking or hydrolyzing it. This process releases adenine diphosphate, a phosphate molecule along with loads of energy. ATP is the main molecule which cells use to carry out their normal functions.
Answer: Polychlorinated biphenyls (PCBs) are a group of manmade chemicals. They are oily liquids or solids, clear to yellow in color, with no smell or taste. PCBs are very stable mixtures that are resistant to extreme temperature and pressure. PCBs were used widely in electrical equipment like capacitors and transformers. They also were used in hydraulic fluids, heat transfer fluids, lubricants, and plasticizers. The primary company that made PCBs in the United States was Monsanto Inc., mainly using the name Aroclor. Commercial production of PCBs ended in 1977 because of health effects associated with exposure. In 1979, the U.S. Environmental Protection Agency (USEPA) banned the use of PCBs; however, PCBs are still present in many pre-1979 products.
Answer:
b. chloroplast
Explanation:
Chloroplasts are the double membrane-bound organelles that serve as the site for photosynthesis in eukaryotes. Chloroplasts are the organelles where eukaryotic autotrophs synthesize the organic nutrients by the process of photosynthesis. According to the given information, the first eukaryotic cells were heterotrophs as they derived energy by available organic compounds. They did not synthesize the organic nutrients to use them as fuel. Chloroplasts are not present in heterotrophic organisms such as animals. Therefore, chloroplasts are most likely to have appeared last in the eukaryotic cells.
Sexually because they are part of the animalia kingdom. Sexual reproduction allows genetically diversified offspring, but sexual reproduction requires two animals of the same species.
The question is asking to choose among the following choices that states the mechanism that would explain the said problem. In my own research and further investigation, I would say that the answer would be Genetic Drift. I hope you are satisfied with my answer and feel free to ask for more
