Answer:
They're constructed by grouping organisms together based on their shared characteristics
Explanation:
Hope this helps :)
Number 1. nucleic acid can be DNA or RNA with both stand for Deoxyribonucleic acid and ribonucleic acid.
They had no natural predators, so they spread quickly and ate the farmers crops and also made the bilby an endangered species.
Gametogenesis, the production of sperm and eggs, involves the process of meiosis. During meiosis, two nuclear divisions separate the paired chromosomes in the nucleus and then separate the chromatids that were made during an earlier stage of the cell's life cycle.
It was the structure of DNA. Watson and Crick stole the credit from a woman whose name I can't remember, but basically she took really long exposure photographs (24 hours for some) and saw an X shape, which was the corresponding sign of a double helix. It was a pretty complicated method she was using and nobody had thought of using it for DNA research until then.
