30) Which of the following is a characteristic of all angiosperms? A) carpels that contain microsporangia B) free-living gametophyles Qovules that are not contained within ovaries D double internal fertilization 31) The parenchyma comes in two varieties columnar and spongy. In the mesophyll layers of leaves, the columnar parenchyma are responsible for - and the spongy parenchyma is responsible for A) light harvesting gas exchange B) fluid transport, sugar transport C) support structure; starch storage D) none of the above is correct 32) Primary growth from the apical meristems increases height and root depth. Secondary growth from lateral meristems produces A) branches leaves D) reproductive ructures B) girth Angiosperm Seed Fermation Looking at the simplified angiosperm life cycle, explain how the fruit of cantaloupe plant growing near honeydew plants will develop as hybrids. A) Honeydew pollen and cantaloupe ovule underwent fertilization and the fruit developed by mitosis B) Honeydew and cantaloupe are melon same species using the biological species definition C) Honeydew and cantaloupe are cultivars or strains of a common ancestor melon D) All of the above are likely explanations 34) Plant cells in a growing developing plant are mostly uncommitted to a fate. In animals we call this pluripotent stem cells. What determines the fate of plant cells during development? A) gene sequence B) position in plant C) genes D) gene control and position in plant Which Quy on use 35) Plants can be transformed with DNA from molds, insects and other plants. What vector shuttles DNA from other sources into plants? A) epiphytic plants B) plant viruses C) Agrobacterium tumefaciens D) E.coli
