Very often clinically relevant information may be obtained by examining
A. a wet mount.
B. the size and shape of the organism.
C. the sequence of proteins.
D. the transformation ability.
E. a wet mount AND the size and shape of the organism.
E
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Antigen receptors can directly connect to signal transduction pathways because immunoglobulins and TCRs have very small cytoplasmic domains
Indicate whether the statement is true or false.
Which of the following is not a characteristic of salps?
a. Free-swimming lifestyle b. Incurrent and excurrent siphons c. Radial symmetry d. Bioluminescence e. Filter-feeding
In true fishes, the gills primarily serve which
function? a. gas exchange b. feeding c. water elimination d. both feeding and gas exchange e. all of these
The same basic array of bones is modified to give rise to the wing of a bat and the fin of a porpoise. Such anatomical structures are called:
A. inherited. B. homologous. C. analogous. D. uniform. E. evolutionary modifications.