Both molecular and morphological comparisons among dugongs and proboscideans species should be conducted
From a molecular biology point of view, it is possible to compare the sequences of dugongs and proboscideans and thus observe the homology level between genes of interest, it in order to establish evolutionary relationships among species. Moroever, by mass spectrometry (MS), it is possible to compare proteins in fossils >1 million years, these comparisons may shed light on the evolutionary origin of one group
In an experiment, conclusion can be made only after verifying all the results various times as difference in experimental conditions can leads to change in results.
As in given experiment, the student tested fertilizers only in a single plant and gave conclusion, but the result may change if he performs that same experiment in a different plant or in a different experimental condition. Thus, his teacher most likely asked him for additional trail because 'it is necessary to observe data from various plants before making an conclusion that can be accepted.'
This process is called passive transport or facilitated diffusion, and does not require energy. The solute can move ''uphill'', from regions of lower to higher concentration. This process is also called active transport, and requires some form of chemical energy. Hope this helped and if you need more help then just message me instead :)
Answer: Bacteria can live in hotter and colder temperatures than humans, but they do best in a warm, moist, protein-rich environment that is pH neutral or slightly acidic. There are exceptions, however. Some bacteria thrive in extreme heat or cold, while others can survive under highly acidic or extremely salty conditions.