1031 -Test2_ B

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1031 -Test2_ B
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2010-03-09 05:47:58
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1031 Test2_ B
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1030-Test 2 - B
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  1. The phylum that includes Ephedra the plant from which ephedrine is extracted:
    Gnetophyta
  2. How many cells are there in a mature male gametophyte of longleaf pine
    4
  3. How many cells are there in a mature male gametophyte of an angiosperm
    2
  4. How many cells are thre in a mature female gametophyte of an angiosperm
    7
  5. Which of the following phyla is monotypic (single species)
    Ginkgophyta
  6. In what plant embryological stage are the 3 tissue systems first visible
    heart-shaped
  7. What is included in the Bark of a tree
    • periderm
    • phloem
    • vascular cambium
  8. THe seed coat develops from what kind of tissue
    integuments
  9. which plant hormone controls a plant's response to stress dormacy
    abscisic acid
  10. If a fruit develops from tissue of several flowers, the fruit would be called
    multiple
  11. A dry, dehiscent fruit in which each carpel separately
    capsule
  12. Derivative cells are
    destined to specalize
  13. the opening in a stoma is surrounded by
    guard cells
  14. epigeous means
    germination with cotyledons appearing above ground
  15. The combined layers, phelloderm + Phellogen + Phellum, make up the
    Periderm
  16. The visibility of growth rings in wood (as light and dark bands) can be explained by:
    spring wood differing in cell size from summer wood
  17. The cortex of stems and roots, middle portions of leaves, and the bulk of fruits consist mainly of
    parenchyma
  18. Which of the following is a primary meristem
    procambium
  19. which of the following cell types is alive at maturity but incapable of division
    sieve tube member
  20. which cell type is found in the hardest of plant parts
    sclereid
  21. specalized cells found only in porifera
    choanocytes
  22. what is the feeding mode of sponges
    filter feeding
  23. In sponges water always exits through the
    osculum
  24. Mineral components of sponge bodies, calcareous or silicious that provide support
    spicules
  25. The large interior cavity that occurs in some sponges is the
    spongocoel
  26. the level of organization in the porifera
    cellular
  27. eudocoelomate animals are distinguished from pseudocoelomates by the presence of the
    peritoneum
  28. The hole that develops by gastrulation
    blastophore
  29. The embryonic stage of animal development following the zygote consisting of a solid ball of cells
    morula
  30. Characterized by a lack of symmetry, tissues or organs
    parazoa
  31. Which of the following cell types has sieve areas only
    sieve cell
  32. Welwitschia the strange desert plant with ever-growing leaves is a member of
    Gnetophyta
  33. Flowers with reduced or absent perianth are usually involved in this pollination syndrome
    anemophily
  34. non-directional movements of plants in response to touch are called
    thigmonasty
  35. which sponge cell type secretes the spicules
    archaeocyte

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