Biology MCQs

21. What is the cork cambium, cork cell, and phelloderm collectively called?
[A] periderm
[B] lenticels
[C] abscission
[D] cytokinin

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22. What is the function of strigolactone?
[A] promote seed germination in some species
[B] inhibit lateral apical development in the absence of auxins
[C] establishment of mycorrhizae
[D] All of the above

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23. What does a plant need to survive?
[A] sunshine
[B] nutrients
[C] water
[D] All of the above

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24. Radish is an example of which of the following root?
[A] Conical roots
[B] Fusiform roots
[C] Napiform roots
[D] Tuberous roots

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25. The hippocampus (sea horse) belongs to the class?
[A] Agnatha
[B] Chondrichtyes
[C] Osteichthyes
[D] Mammalia

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26. The part of the body that turns into feathers in birds?
[A] Hindlimb
[B] Forelimb
[C] Pelvic girdle
[D] None of the above

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27. A sheep belongs to which of the following taxa?
[A] Mammalia
[B] Chordata
[C] Artiodactyla
[D] all of the above

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28. Where is heparin derived from?
[A] intestines of pigs
[B] intestines of goats
[C] intestines of cows
[D] intestines of dogs

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29. The ________ is responsible for why you would feel something touch your hair.
[A] Root Hair Plexus
[B] Hair Follicle
[C] Hair Root
[D] None of the options

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30. What is the speed of nerve impulses?
[A] 60 m/s
[B] 0.5 – 130 m/s
[C] 10-30 m/s
[D] 50 -150 m/s

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