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shared derived characters are a those thatcharacterize all the species on a branch of a phylogenetictree nbspnbspnbsp b
a taxon such as the class reptilia which doesnot include its relatives the birds is nbspnbspnbsp a really anorder
what condition would have made the primitiveatmosphere of earth more conducive to the origin of life than thepresent
define the term ecosystem services give five examples of ecosystemservices that humans would have a hard time replacing
a non-peptide c-n covalent bond made by the sharing of asingle pair of electrons is 149 angstroms in length and
do you think the concept of emergence is important inhelping us to better understand how biological systems function
most flour beetles are black but several color variants areknown crosses of pure-breeding parents produced the
1 the function of a ribosome isa to direct transcriptionb to process pre-mrnas intomature mrnasc to hold mrna and trnas
1 self-cleaving rnas that functioncatalytically are calleda snrnpsb ribosomesc snrnasd splicesomese ribosomes2
1 what the benefits of plasmids in bacteria2 why is an enzymersquos activity affected by ph3 why is there so much
lipoproteins are responsible for binding with and carrying lipidsin the bloodstreamlipoproteins generally have
histone proteins are proteins that are involved in the supercoilingof dna within cells essentially dna is wound tightly
a particular small polypeptide is nine amino acids long usingthree different enzymes to hydrolyze the polypeptide at
devise guidelines that your biology class can use to dispose ofthe classrsquos non lab trash in a safe environment
what types of molecules would i find in functional goup of the carboxyl i have looked thru the book and cant see what
1 ribozymes in the large ribosomal subunitcatalyze peptidyl transferase activity during elongation what isthe immediate
1 what makes up the intitiation complex atthe start of translationa a large and a small ribosomal subunitb in the
both frogs and ducks have webbed feet moreever ducks are move closely related toperching birdsnbspnbsp han to frogs
i want to know more about synaptic transmission and the difference between postsynaptic and
1 the virulent t2 bacteriaphage life cycle is chrarcterizedasa a lytic cycle onlyb a prophage pathwayc lytic and
1 how many phenotypic classes may be generated from athree-point testcrossa 327b 24c 238d 329e it cannot be predicted2
1 when does crossing overoccura interphase prior to meiosisbnbsp prophase ii of meiosisc anytime at random during
1 a chromosome contains alleles forblue eyes and blond hair after meiosis the same chromosomecontains alleles for blue
1 genes that are located on thesame chromosome area linkedbhomozoygouscchromologsdholosgouse coupled2 genes that are
in which of the following groups has sympatricspeciation been most importanta fungi nbspnbspnbsp b protozoa