I just took the test and the answer was B
The answer is Observation. That's the first step.
Answer:
Bactera and Archaea
Explanation:
Prokaryotes are divided into two different kingdoms; Bacteria and Archaea. The major comparison between them is:
- Cell wall of bacteria is made up of peptidoglycans, while that of archaea is composed of pseudomureins.
- Bacteria have one rRNA while archaea have three rRNA.
- Growth of bacteria can be inhibited by antibiotics while that of archaea can't be inhibited by antibiotics.
- Bacteria can't survive at extreme high temperature above 100 degree Celsius, while archaea can survive in both extreme physical and geological conditions.
Darwin’s theory became accepted because it had more evidence that supported it. Lamarck’s theory suggest that all organisms become more complicated over time, and therefore doesn’t account for simple organisms, such as single-cell organisms. We also know through observation that characteristics inherited during an individual’s lifetime do not get passed onto their offspring; for example, if someone pierces their ear, it doesn’t mean that their children will be born with pierced ears. Darwin’s theory became even stronger when, many years after his death, the study of genetics emerged. Genetics ultimately showed that all inherited traits were passed on through genes, which are unaffected by outside world, as Lamarck would predict, and are instead naturally varied, as Darwin predicted. Though Darwin didn’t know what genes were, he could see their effect on natural selection.
Hope this helps!