FOCUS ON INTERACTIONS
Giant lycophyte trees of Earth’s early forests (see Figure 26.30) had microphylls, whereas ferns and seed plants have megaphylls. Write a short essay (100-150 words) describing how a forest of lycophyte trees may have differed from a forest of large ferns or seed plants. In your answer, consider how the type of forest in which they grew may have affected interactions among small plants growing beneath the tall ones.
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- One evident apomorphy evolved in vascular plants is the establishment of true leaves which is characterized by the incorporation of the vascular system. Select one: True False The calyptra in mosses generally function in the regulation of gas exchange and water uptake. Select one: True False Elaters are non-sporogenous cells with spiral wall thickenings and is mainly for spore dispersal of liverworts. Select one: O True Falsearrow_forwardThe non-vascular plants are represented today by three phyla of small herbaceous plants namely: Phylum Hepatophyta, Phylum Anthocerophyta, and Phylum Bryophyta. Cite and explain how the structure fits function in bryophytesarrow_forwardPlease answer fast Compare the general morphology and importance of the gametophyte and sporophyte generation of bryophytes, seedless vascular plants and seed plants.arrow_forward
- When vascular tissue first forms, the central cylinder of xylem and phloem is called a stele. The stele of vascular plants come in several types depending on how the vascular tissue is arranged. Below is a cross section of a clubmoss (Lycopodium), which is actually an ancestral group of seedless vascular plants and not a true moss. What type of stele do clubmosses have? (You may need to search your Photo Atlas or internet to find the answer). O protostele O siphonostele O eustele O dictyostelearrow_forwardCompare a fern species such as a local epiphytic fern with a Caulerpa species. State the plant division to which they each belong. Identify the habitat of each species. Identify three (3) structural (morphological) characteristics which they share and one (1) internal structural characteristic which they do not share.arrow_forwardFILL UP THE TABLE WITH 1=PRESENT AND 0=ABSENT Xylem Wood and Phloem Seeds Chloroplast Cuticle and Flower Chlamydomonas Marchantia Psilotum Gingko |xora Construct a phylogenetic tree for the following OTU and use bars to denote their apomorphiesarrow_forward
- Trimerophytes were plants that probably evolved from rhyniophytes but with more derived features. In one feature, certain stems grow longer than others, and thus, rather than having dichotomous branching, they have branching (displayed especially by Pertica). Simultaneously, the positioning of branches became more and .arrow_forwardThe move to land had challenges that needed to be overcome, but the reward was great. Match each taxa (group) to the correct adaptation that taxa acquired to meet the challenges of life on land. Presence of a thing cuticle to resist drying out, produce spores, but no vascular system. Fungi Developed a chitin cell wall, produce spores, excrete digestive enzymes into their environment and absorb nutrients. Gymnosperms and Angiosperms Moss (Bryophytes) Have internal organs such as lungs rather than external organs such as gills. Developed weight-bearing limbs. Animals Presence of a vascular system, microscopic gametophyte, have substantial roots, and produce seeds. Ferns Presence of a vascular system, reduced gametophyte, produce spores.arrow_forwardWRITE ABOUT A THEME: ORGANIZATION In a short essay(100–150 words), explain how the evolution of lignin affectedvascular plant structure and function.arrow_forward
- Describe in your own words the difference between a sporophyte and a gametophyte.arrow_forwardThe absence of what two major traits indicates that a plant may be a bryophyte?arrow_forwardUse the Florida Plant Atlas to complete a search for Bryophytes. (Use the video in the content area of Module 7 to learn about using the Florida Plant Atlas website). 1. Search for Bryophytes in Broward County 2. Select two species of bryophytes from the search list and research the plant using the internet. 3. Fill in the table for each of the species you selected (Most of the information for the table can be found by clicking on the name of the species you select) Genus Species Name Type of Bryophyte Native or Invasive Other counties it has been seen in Common Name Insert a picture (you may download from the internet, provide image source) Any interesting information you may have learned about the plant (food source, toxic, aquatic, or anything you thought was interesting) Name: Name:arrow_forward
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