1. The following would be a synapomorphy for angiosperms: A. vascular tissue B. photosynthesis C. xylem and phloem D. flowers E. seeds QUESTION 3 1. The eudicots A. and the monocots are the only existent angiosperm clades. B. include orchids and palm trees. C. are not a clade. D. include the basal angiosperms E. include most of the plants you see and eat. QUESTION 4 1. Coniferous gymnosperms, such as pines, depend primarily on _______ for pollination, thus the plants produce large quantities of pollen that disperse over large areas during the spring. A. wind B. insects C. water D. mammals E. birds QUESTION 5 1. The oldest bristlecone pine tree ever found was subsequently cut down by: A. a lumberjack, for lumber B. a teenager, to prove how manly he was C. a scientist, studying the tree D. a nihilist, because that's the kind of thing they do E. a collector, to sell pieces of the gnarled wood at auction QUESTION 6 1. Which of the following is a nonseed vascular plant? A. Hornwort B. Moss C. Fern D. Rose E. Pine tree QUESTION 7 1. The dominant stage of the life cycle of a moss is the A. flowering stage. B. haploid sporophyte. C. haploid gametophyte. D. diploid sporophyte. E. diploid gametophyte.
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The Brazil nut tree, Bertholletia excels, is native to tropical rain forests of South America. The agouti (Dasyprocta spp.), a cat-sized rodent, is the only animal with teeth strong enough to crack the hard wall of Brazil nut fruits. It typically eats some of the seeds, buries others, and leaves still others inside the fruit into which moisture can then enter and allow the remaining seeds to germinate. The agouti is
most directly involved in dispersal of which of the following structures?
The Brazil nut tree, Bertholletia excels, is native to tropical rain forests of South America. The agouti (Dasyprocta spp.), a cat-sized rodent, is the only animal with teeth strong enough to crack the hard wall of Brazil nut fruits. It typically eats some of the seeds, buries others, and leaves still others inside the fruit into which moisture can then enter and allow the remaining seeds to germinate. The agouti is
most directly involved in dispersal of which of the following structures?
Scarlet gilia (Ipomopsis aggregata) usually has red flowers. In certain populations in the Arizona mountains, however, the flowers range from red to pink to white. In early summer, most (but not all) of the flowers were red. Six to eight weeks later, the same individual plants were still present; the flowers ranged from pink to white, and few red flowers were present. The major
pollinators early in the season were two species of hummingbirds active during the day; they emigrated to lower elevations, and the major pollinator later in the season was a hawk moth (a type of moth). The hawk moth was most active at sunset and later, and it preferred light pink to white flowers after dark. When hummingbirds were present, more red flowers than white flowers produced fruit. When only hawk moths were present, more white flowers produced fruit.
Which of the following proposed
controls would be most appropriate for the experiment when, late in the season, scientists painted some of the red flowers white?
Answer
Verified
Hint: Both have similar basic parts and structure of the plants, thus making it similar in structure except the flowers because the gymnosperm is found to be more simple as compared to the angiosperm that is more advanced like they produce fruit to protect seed.Complete answer:
Differences and similarities between the angiosperms and the gymnosperms.
Angiosperm | Gymnosperm |
Angiosperms are the flowering plants and are also known as the seed-producing plants | Gymnosperms are the non-flowering plants that produce naked seeds. |
The angiosperms have plant parts including the leaves, stems, and roots. | The plant parts of gymnosperms are also the same as the angiosperms which include the leaves, stems, and roots. |
Angiosperms produce seeds that are enclosed in a covering | Gymnosperms produce naked seeds with no outer covering. |
The term angiosperm comes from a Greek word angein meaning “casing” and Sperma meaning “seed”. | The term gymnosperm is derived from a Greek word gymnos meaning “naked “ and Sperma meaning “seed”. |
Angiosperms are distinguished from gymnosperms by characters which include flowers, endosperm present inside the seeds, and the formation of fruits that contain seed. | Gymnosperms seeds are developed on the surface of the scales or leaves. They are modified to form cones. |
Angiosperms like all vascular plants have a sporophyte-dominant life cycle. | Gymnosperms also have a sporophyte-dominant life cycle as in other vascular plants. |
Note: The term angiosperm was coined by Paul Herman in 1690. The early characteristics of seed plants were evident in the fossil of the late Devonian period around 383 million years ago. The ancestors of flowering plants diverged from the gymnosperms in the Triassic period (245-202 million years ago). They diversified early during the early cretaceous period.