Seed plants (Angiosperms and Gymnosperms) all have non-moble sperm. When looking
ID: 99516 • Letter: S
Question
Seed plants (Angiosperms and Gymnosperms) all have non-moble sperm. When looking at ALL ancestral plants, this would be a A. Synapomorphic trait B. Symplesiomorphic trait When looking at just the Angiosperm group this would be a A. Synapomorphic trait B. Symplesiomorphic trait Seed development was an adaptation that increased survival rates for the gymnosperms and angiosperms. What was not a factor? A. Megagametophyte or endosperm provides food for the developing embryo. B. Seeds can germinate when conditions are advantageous. C. Seed coats add protection to embryo D. Seed development increased natural selection. ANGIOSPERMS-FLOWERING PLANTS Why is endosperm important? A. It is the first step in plant reproduction. B. It is how the sperm is produced. C. It is a source of food for the embryo D. It increases genetic diversity. What is not an advantage of flower fragrance, color, or nectaries? A. They attract (or help attract) pollinators. B. Colors can guide the insects to land on the flowers in a way that helps attach pollen to the insect. C. Carnivorous plants use flower fragrance, color or nectaries to trap insects. D. Different fragrances, colors and nectaries between plant species will attract specific insects to that specific species therefore less pollen needs to be made. Presently flowering plants make up the majority of species of plants on the earth. One reason for their success is that they have coevolved with what group of animals? A. Fish B. Reptiles C. Insects D. Amphibians Many flowering plant species produce a swollen ovary (fruit). How does this benefit the species? A. Attracting animals that feed on the fruit and disperse seed. B. Fruit benefits the species as it reduces the need for the plant to produce sugar. C. Fruit is a major part of the asexual reproduction process D. Fruit is always the best way for any plant to spread its seed.Explanation / Answer
15 B. Symplesiomorphic ie these two taxa as well as their last common ancestor share this trait.
16 A. Synapomorphic trait ie the taxa inside the angiosperms and their first common ancestor share this trait.
17 B. Seeds can germinate when conditions are advantageous. This is a poor characteristic for survival.
18 C. It is a source of food for the embryo. It is formed inside the seed along with embryo and provides it with nutrition.
19 C. Carnivorous plants use flower fragrance, colour and necataries to trap insects.
20 C. Insects because they largely help in pollination process.
21 D. Fruit is always the best way for a plant to spread its seeds. This can be via air, animals,water etc