Four of the following statements are true about stramenopiles. Which statement is FALSE?
a. They are filamentous heterotrophs.
b. Some species are unicellular.
c. They include diatoms and red algae.
d. Most are photosynthetic.
e. Their chloroplast structure suggests evolution by secondary endosymbiosis.
ANSWER: c
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Fill in the blank(s) with the appropriate word(s).
Viruses with a tail attached at one side of a polyhedral head are called ____
a. simple viruses b. helical viruses c. enveloped viruses d. complex viruses e. viroids
In a eudicot seed, which structure emerges first?
a. embryonic shoot b. embryonic root c. coleoptile d. cotyledons
e. hypocotylMore rainfall enters the soil on steep slopes than on level land
Indicate whether the statement is true or false