11) viral genomes can consistof any of the following except
a) double-stranded dna.
b) double-stranded rna.
c) single-stranded dna.
d) single-stranded rna.
e) helical capsomeres.
12) plasmodium is the causative agents of malaria. during its
lifecycle in a human
host it uses a cell surface complex to invade red blood cells
whichis called
a) protoplast
b) apex.
c) apicoplast.
d) alveoli
e) anthers
13) all of the following are sporophyte structures except
a) immature ovules.
b) pollen tubes.
c) ovaries.
d) stamens.
e) sepals.
14) what was the consequence of the release of oxygen gas by
plantand bacterial
photosynthesis? it
a) made life on land difficult for aerobic organisms.
b) changed the atmosphere from oxidizing to reducing.
c) made it easier to maintain reduced molecules.
d) made earth an oxidizing environment.
e) prevented the formation of an ozone layer.