Volvox, a species of ________ algae, lives in spherical colonies joined by thin cytoplasmic strands
a. charophyte
b. red
c. brown
d. chlorophyte
d
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Many grasses are adapted for grazing. One such adaptation is the positioning of their meristems, which are high above the ground away from hungry herbivores
A. true B. false
P1 bacteriophage can be used as an experimental vehicle to move genes from one cell to another because occasionally large pieces of host DNA are accidently packaged into phage heads. What is this process called?
A. lysogeny B. bacterial transduction C. phase variation D. transposition E. cointegration
Four of the five roles listed below are functions of
parenchyma tissue. Select the exception. a. support b. heal wounds c. store food d. conduct photosynthesis e. regenerate lost parts
The attenuated oral poliovirus vaccine (OVP) is no longer administered in the U.S.A. because it
A. is very toxic. B. does not provide good immunity. C. can occasionally cause poliomyelitis. D. can be spread to contacts. E. can be spread to contacts and can occasionally cause poliomyelitis.