E-PolyLearning

16. An internal factor that influences growth in plants is
a. hormones
b. water
c. nutrition
d. all of the above
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Answer: (d).all of the above

17. Synthesis of cytoplasm and cell wall material takes place during
a. maturation
b. cell division
c. elongation
d. differentiation
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Answer: (b).cell division

18. Acetabularia is a kind of
a. fungi
b. protist
c. multicellular alga
d. unicellular alga
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Answer: (d).unicellular alga

19. Phenomena that some cells evoke a specific developmental response in other cells is
a. embryonic influence
b. embryonic induction
c. embryonic stimulation
d. embryonic dominance
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Answer: (b).embryonic induction

20. Notochord is one of few prominent structural features in chick embryo of about
a. 15 hours
b. 18 hours
c. 13 hours
d. 10 hours
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Answer: (b).18 hours

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