Which of these statements about snakes is
false?
a. All snakes are carnivores.
b. All snakes use internal fertilization.
c. All snakes are venomous.
d. All snakes have flexible skull bones and
hinged jaws.
e. Some snakes retain skeletal remnants of
hindlimbs.
C
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The photosynthetic activity of cyanobacteria takes place in their:
A. thylakoids B. mitochondria C. pili D. gas vesicles E. magnetosomes
Pheromones
a. are signaling molecules that are used for olfactory communication between two different species. b. are only used by invertebrates. c. require a vomeronasal organ to be detected. d. are signaling molecules used for olfactory communication between members of the same species. e. are all of these
A horizontal overlap of the maxillary teeth creating a protrusion is an
a. openbite b. overbite c. overjet d. crossbite.
It is necessary to have chloroplasts to photosynthesize
a. true b. false