A group of students is setting up a test to see whether earth worms prefer rough of smooth surfaces . What type of investigation is the group doing?

creative diagnostics provides a protocol for total protein extraction based on ripa which is widely used.

substitution is the answer in this case

the food storage products of chrysophytes are oils or the polysaccharide laminarin.   formerly classified as plants, the chrysophytes contain the photosynthetic pigments chlorophyll a and c all but the yellow-green algae also contain the carotenoid pigment fucoxanthin.

her next move would be to use agarose gel electrophoresis to separate the dna molecules of varying length and create a dna fingerprint.