Flowering Plants

Flowering Plants

1. Flowering plants came into dominance around _____ million years ago.

   1. 140 million years ago

2. This represents the first type of fruit found in early flowering plants.

   1. Dicotyledons

3. Which kind of plants need to be found very close together for pollination to occur?

   1. Cross pollinated plants

4. Some seeds need mechanical disruption in order to germinate. This is known as:

   1. Scarification

5. Seed germination may be controlled by:

   1. An internal thermometer

6. Double fertilization and a triploid endosperm is characteristic of:

   1. Angiosperms (flowering plants)

7. Double fertilization occurs in:

   1. Angiosperms (flowering plants)

8. In double fertilization, one fertilization makes the zygote and the other makes the:

   1. The endosperm

9. Plants that reproduce with seeds enclosed in a fruit wall belong to this group.

   1. Angiosperms

10.  Which of these plants have both tracheids, vessel elements and leaves with complex venation?

    1. Angiosperms - Flowering plants 

11. Which group of plants is found in the most diverse habitats, from the oceans to the high mountains?

    1. Algae

12. Plants that have parallel leaf venation, scattered vascular bundles, and fibrous roots are:

    1. Monocotyledon plants

13. Most species of flowering plants belong to this class.

    1. Angiosperms

14. The plant that best supports the paleoherb hypothesis is:

    1. Dutchmans’s pipe

15. What is an angiosperm?

    1. A flowering plant

16. Seed bearing plants that have a dominant sporophyte with the seeds enclosed in ovary walls are:

    1. Angiosperms

17. Flowering plants with numerous, spirally arranged, unfused parts, with radial symmetry, and pollination by beetles reflect this group.

    1. Pseudoanthium

18. One seed leaf once germination occurs is found in:

    1. Monocot plants

19. In eudicot seeds, most of the food for the embryo is found in the:

    1. Endosperm

20. About 90 percent of all plant species are:

    1. Flowering plnats

21. No two plants have the same shape of:

    1. Leaves

22. Which group shows the greatest diversity in terms of species numbers and habitat diversity?

    1. Angiosperms

23. What phylum below shows the greatest ecological diversity?

    1. Anthophyta

24. Fibrous roots are found in the:

    1. Monocots

25. Which is NOT considered a primitive condition of early flowering plants?

    1. Flowers with parts that do fuse together

26. In flowering plants the fruit wall comes from the:

    1. Ovary wall of the flower

27. How does Amborella trichopoda serve as a modern model for early flowering plants? What features does it have that may reflect the characteristics of early ancestors of flowering plants.

    1. Lack of xylem, unisexual flowers with simple structures, the spiral arrangement of floral parts

28. How does the paleoherb hypothesis differ from the magnoliid hypothesis in terms of plant evolution?

    1. The paleoherb hypothesis suggests the earliest angiosperms were flowering plants, and the magnoliid hypothesis suggests that shrubs and small trees were because they are related to modern-day magnolias

29. Name three adaptations that make flowering plants more successful than all other plants.

    1. Insect pollination

    2. Fruits that protect and disperse seeds

    3. Complex vascular system

30. Reproductively, why are flowering plants more successful than pine trees?

    1. Because they have adapted to attract insect or animal pollinators to further disperse seeds

31. _____ is the first known flowering plant in the fossil record.

    1. Montesechia Vidalii

32. _____ are thought to be the early pollinators of flowering plants

    1. Beetles and flies

33. ______ is the name of the phylum of flowering plants

    1. Anthophyta

34. ___________________________ and the egg nuclei fuse with the pollen sperm nuclei in double fertilization.

    1. Two polar nucleii

35. _____ is the part of a seedling that is above the attachment of cotyledons.

    1. Epicotyl