v Figure 20.7 Exploring Gymnosperm Diversity Phylum Cycadophyta The 300 species of ving cycads have krge cones and palmike kawes inie palm peces a angiospennd, Unlike mod sed plants, cyrada have lagellated pem, indrating their descent frm Phylum Ginkgophyta daring the Mesaic en, known s the age of cycads well as the age of dinosus. Today, however, cycads are the most eadangered dall plant groupe 75of their qder a thmatened by hafitat destation and cther humun actiona. anke beleka in the only nuretang qen of thte plykum: lke cyads, gnkges have ligellted spenn. Aso knowa s the maden- luir ta, Gnko oéu las decihos fanke kuves that tum foleates ar polition l. landcapes ofen plant only polen produrtag taen becae the kay ah l ancd athey decay. Grun malta Phylum Gnetophyta hnta, and welnttschis. Some speckes are trepical, whemas ihes ive in dessts. Alhough very dilfeet in appranr, the genera are gouped together haied on moleculir data. Weleibcha. he gas conts of ore pe Wwete a plat that can le fo itands of yesand found only in ite deserts of uatwinen Aka E srapke lewen a ong the lagest kes known 4Gnet. The gmus hekn about 5specn of topcl o, shibs and ves, mly rae to Ahka ared AL the kaws kok sid te theseof kweng plt, and t wech kE Somewtat like fruts Oudng cones Epheda Ihisgen ks tout 40peci that inhube ija woldde. These desert s, commorly aled "Mamon ina". the compound ephedine wich knd midkinaly sadongtant UNIT ma The Evolutonary Hadury of Bekgical Drwerdity

Q: Identify distinguishing characteristics of gymnosperms.

A: Gymnosperms are a group of seed-producing plants that includes conifers, cycads, Ginkgo, and…

Q: List and briefly describe at least three adaptations that have contributed to the evolutionary…

A: Angiosperms include the flowering plant and have around 300,000 species. It is the most diverse…

Q: Define the concept of Gymnosperms ?

A: Plants are organisms with eukaryotic cells having cell walls and are capable of synthesizing their…

Q: Explain Geological history of gymnosperms

A: Introduction :- Conifers, cycads, Ginkgo, and gnetophytes are among the gymnosperms, a clade of…

Q: Identify three gymnosperm phyla, and describe their importanceto humans.

A: Gymnosperms are the seed-bearing spermatophytes.

Q: State the basic differences between angiosperms and gymnosperms.

A: Gymnosperms and Angiosperms are major two groups of vascular seed plants. These two represent 80…

Q: List 10 uses of gymnosperms and provide a specific source for each

A: The plants consist of roots, stem, leaves, fruits and flowers. The conduction system in plants are…

Q: Compare and contrast the four types of gymnosperms.

A: The meaning of the word “gymnosperm” is “naked seed”. It is a group of plants that produce seeds.…

Q: Describe the major evolutionary adaptation that allowed gymnosperms to be able to move on to dry…

A: Plants are organisms with eukaryotic cells having cell walls and are capable of synthesizing their…

Q: Trace the evolution of Gymnosperms.

A: Gymnosperms are first group of seed producing plants.

Q: Double fertilization evolved independently in gnetophytes and in flowering plants. Name two other…

A: Fertilization is a sexual reproduction process in plants wherein the male gamete that is pollen…

Q: List the major groups of gymnosperms.

A: Gymnosperm are the plants in which seeds are not enclosed in an ovule.       They are present all…

Q: What is the structure and Characteristics of Gymnosperms and its representative plants?

A: Plants are predominantly the photosynthetic eukaryotes belonging to the kingdom Plantae.…

Q: Which taxa of gymnosperms has 70 species and resembles palm trees? Cycads Ginkgo Gnetophytes…

A: Taxonomy is the study of organism categorization, it is the grouping (division) of all known species…

Q: Give 2 examples each of plants or fruits found in both the gymnosperm and angiosperm.

A: Gymnosperms are referred to as non-flowering plants, while angiosperms are known as flowering…

Q: Explain anatomy of gymnosperms

A: Gymnosperms are 'seeds bearing plants' that have their ovules exposed i.e., ovules are without…

Q: what structure of gymnosperms are homologous to gametophytes of the seedless plants?

A: Gymnosperm has a naked seed and does not bear fruits. Gymnosperms are evolved before angiosperms.…

Q: What features distinguish gymnosperms from seedless plants?

A: Unlike angiosperms, or flowering plants, whose seeds are covered by mature ovaries, or fruits, a…

Q: Describe how fern diversity has been affected by the evolution of the angiosperms.

A: R.H. Whitakaer’s classification system categorizes living organisms in five major kingdoms. Kingdom…

Q: Are ferns evolutionarily an older or younger group than the gymnosperms and angiosperms?

A: Kingdom Plantae is a vast kingdom which includes plants . It is divided into :-  A ) Thallophyta  B…

Q: Which gymnosperm family has genera that are not evergreen?

A: Introduction:- Gymnosperms (naked seeds) are four extant divisions of vascular plants with exposed…

Q: Give one significant difference between liverworts and mosses.

A: Mosses are the non-vascular plants that reproduce via spores. These organisms form a separate phylum…

Q: What can you say about an early interpretation or hypothesis that the gnetophytes are probably the…

A: Taxonomy is the branch of biology concerned with the placement (of a new creature into an existing…

Q: Does horsetails are gymnosperms?

A: Horsetails are also known as Equisetum. They are mainly found in damp habitats, alongside rivers and…

Q: You are given a plant that you have never seen before (see figure). Is it a gymnosperm or…

A: Plants can be divided into several categories on the basis of presence of vascular bundles or…

Q: According to the cladogram, do all basal angiosperms possess vessel elements?

A: Introduction :- An angiosperm is a flower-producing plant. Angiosperms, often known as flowering…

Q: Explain why the gymnosperms do not produce fruits.

A: Gymnosperm constitutes one of the two major subdivisions of the Spermatophyta division. The…

Q: Draw the structure of gymnosperms?

A: Gymnosperms are naked seeded plants, these have exposed ovules on megasporophylls. These plants do…

Q: Compare the features of gymnosperms and angiosperms.

A:

Q: What features distinguish progymnosperms from seed ferns?

A: The seed ferns can also be referred to as Pteridospermatophyta. The extinction of seed ferns…

Q: Give two examples of gymnosperms.

A: Gymnosperms plants are known to carry seeds that are naked. Also, the xylem and phloem tissue lack…

Q: Describe what the early angiosperm may have been like with regard to flowers, body, ecołogy, wood…

A: The earliest fossils of angiosperms are similar to small herbaceous or bushes plants. More diverse…

Q: What can you say about an early interpretation or hypothesis that the gnetophytes are probably the…

A: The branch of biology in which there is the placement (of the new organism into a group that is…

Q: How did the evolution of the flower promote the explosive diversification of the Angiosperms in the…

A: The Cretaceous period marks the evolution of angiosperms. Flower diversification played an important…

Q: Name and briefly describe the four phyla of gymnosperms.

A: Gymnosperms are plants that do not flower and have naked seeds. There were six phyla of gymnosperms…