at glacier bay, alaska, the gravel deposits left behind by a retreating glacier were colonized first by which organisms?

Food webs - transferring energy and matter from one level to another. here you see four food webs. one or more are incorrect. which food web(s) show the correct sequence of organisms, from start to top level consumer? a) a b) d c) c d) a and d

What molecules will be best used to compare different species with the exact same sequence of amino acids? why would two species have the same protein even if the molecules in question is different? (hint: transcription to translation to protein).

How would you describe the the organisms in the second row of model 1 that are connected to the parents by a line