Physiology Innate immunity . Group of answer choices depends on an infected animal's previous exposure to the same pathogen utilizes highly specific antigen receptors on B cells is based on recognition of antigens that are specific to different pathogens is found only in vertebrate animals is activated immediately upon infection

not only is it colder, it also becomes darker, less salty, and more dense.

ans.

dna fingerprinting is defined as a process that determines the dna characteristics of an individual. these dna characteristics are unique among individuals as their fingerprints, so it is known as dna fingerprinting.

steps of dna fingerprinting includes extraction of dna from sample, amplification of dna, restriction digestion of amplified dna, and then analysis of dna by gel electrophoresis, respectively.

thus, the next step performed by the scientist is 'to cut the amplified dna (obtained by polymerase chain reaction) by restriction enzymes that cleave the dna into fragments and their analysis.'

i believe it's c. the trait for large beaks will be passed on to future generations through natural selection.

since eventually smaller beaks would have to find another source of food or even eventually just die out from the lack of food.