BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
3rd Edition
ISBN: 9781260670929
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 16, Problem 10WIO
Summary Introduction
To determine:
The supporting or opposing views on the given statement: The pollen grains of
Introduction:
Plants are divided into four major groups namely Bryophytes,
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What is the genetic load in angiosperms and gymnosperms of the following structures:
Microsporophyll
Microsporangium
Microsporocyte
Microspora
Microgametophyte
Megasporophilic
Megasporangium
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Megagametophyte
Most of the approximately 900 species of gymnosperms are conebearing plants. On the surfaces of their cone scales are ovules, which later become seeds. These ovules are said to be naked because they are not completely enclosed by diploid tissue (as the ovules of angiosperms are). This characteristic gives the gymnosperms their name; gymnos is a Greek word meaning naked, and sperma means seed. Botanists now divide the gymnosperms into four groups: conifers, cycads, ginkgos, and gnetophytes.
http://botit.botany.wisc.edu/botany_130/diversity/plants/mosses.html
Make a complete moss life cycle with the following phases and structures. Note: download the images of Mnium from this link and arrange them in the exact sequence to make the lifecycle. Lifecycle structures with cell division: Meiosis, fertilization within archegonium, capsule (sporangium), spores (n), protonema (n) (Image), male gametophyte (n) (Image), female gametophyte (n) (Image), antheridia (Image), archegonia (Image), sperm, egg, water, zygote (2n), embryo, young growing sporophyte (2n), mature sporophyte (2n) (Image), rhizoids. You can insert the non-image part, using the textbox and fill out the suitable s text. For symbol, click on the shape option and inter in your lifecycle diagram at the required place
Chapter 16 Solutions
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
Ch. 16.1 - Prob. 1MCCh. 16.1 - Prob. 2MCCh. 16.1 - Prob. 3MCCh. 16.1 - Prob. 4MCCh. 16.1 - Prob. 5MCCh. 16.2 - Prob. 1MCCh. 16.2 - Prob. 2MCCh. 16.2 - Prob. 3MCCh. 16.3 - Describe the four groups of seedless vascular...Ch. 16.3 - Prob. 2MC
Ch. 16.3 - Prob. 3MCCh. 16.4 - Prob. 1MCCh. 16.4 - Prob. 2MCCh. 16.4 - Prob. 3MCCh. 16.4 - What happens during and after pollination in...Ch. 16.5 - Prob. 1MCCh. 16.5 - Prob. 2MCCh. 16.5 - Prob. 3MCCh. 16.5 - Prob. 4MCCh. 16 - Prob. 1MCQCh. 16 - Prob. 2MCQCh. 16 - Prob. 3MCQCh. 16 - Prob. 4MCQCh. 16 - Prob. 5MCQCh. 16 - Why do many ferns require a shady, moist habitat?...Ch. 16 - Prob. 7MCQCh. 16 - Prob. 8MCQCh. 16 - Prob. 9MCQCh. 16 - Prob. 10MCQCh. 16 - Prob. 1WIOCh. 16 - Prob. 2WIOCh. 16 - Prob. 3WIOCh. 16 - Prob. 4WIOCh. 16 - Prob. 5WIOCh. 16 - Prob. 6WIOCh. 16 - Prob. 7WIOCh. 16 - How do angiosperms differ from gymnosperms? How...Ch. 16 - The immature fruit of the opium poppy produces...Ch. 16 - Prob. 10WIOCh. 16 - Prob. 11WIOCh. 16 - Compare and contrast the life cycles of the four...Ch. 16 - Prob. 13WIOCh. 16 - Prob. 1SLCh. 16 - Review the relationship between natural selection...Ch. 16 - Prob. 2PITCh. 16 - Prob. 3PITCh. 16 - Describe the relationship between pollen and...
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- The male gametophyte of the moss looks identical to the female from the naked eye, but the photo below (I.s. at 4x and then at 40 x) shows that the tip contains the structures where male gametes are produced.arrow_forward1) For each of the organisms in the following table, complete the empty columns with an appropriate answer for each taxa. Organism Gymnosperm Angiosperm Sister Taxa Derived Trait Ancestral Trait Mode of Reproductionarrow_forwardDescribe the orders ANGIOSPERMS-EUDICOTS : ERICALES, GENTIANALES, LAMIALES, SOLANALES, APIALES AND ASTERALES in terms of plant habit, reproductive type (monoecius/dioecius), leaf type, leaf shape, floral characteristics, fruit morphology, seed size/shape, and other distinct features.arrow_forward
- Monilophytes and seed plants both have megaphylls, as well as other traits not found in lycophytes. Explain this observation using the Figure in the picture and the concept of descent with modification.arrow_forwardAfter following the life cycle of an unknown plant species, you determine it's life cycle in the following order: sporophyte -> meiosis -> gametophyte -> gametes -> double fertilization -> diploid zygote. Which plant group would you place this species? O pteridophyte O basidiomycete O bryophyte angiosperm O gymnosperm MacBook Pro Search or type URL 2$ 4 7 8arrow_forwardUsing appropriate examples, discuss the diversity of forms amonggymnosperm lineagesarrow_forward
- Linnean- or rank based classification systems have placed the cycads, ginkgo, conifers and gnetophytes, respectively, into separate categories, of equal ranking (i.e., each gymnosperm group a Phylum or Division). Is the Linnaean classification of each gymnosperm group justifiable, based on the information shown in the figures?arrow_forwardSelect the obvious vegetative and/or habit features that you think will be most helpful in identifying them: Family Arecaceae Family Cyperaceae Family Poaceae: Subfamily Bambusoideae Family Poaceae: Rest of the members (the typical grasses) Family Orchidaceae Family Cucurbitaceae Genus Caladium Genus Allium Genus Rhizophora Genus Codiaeumarrow_forwardGymnosperms are heterosporous plants. This means that; They reproduce by using one type of spore Their spores are covered with sporopollenin They produce separate male and female sporesarrow_forward
- In a typical angiosperm, what is the sequence of structures encountered by the tip of a growing pollen tube on its way to the egg? ovary → style → stigma stigma → style → ovary ovary→ stigma→ style stigma→ ovary → stylearrow_forwardList FOUR examples of angiosperm and/or gymnosperm plant species that are economically important. A species could have more than one use (for example, species "x" is an angiosperm and its tuber is used as food, for drink and at the same time it is medicinal). PUT A PHOTO OF EACH ONE, identify with common (or scientific) name.arrow_forwardIdentify the correct answer from the choices a. State if the information provided is correct or invalid: Alteration of generation is a type of life cycle that occurs in plant. Homosporous produce a single kind of spores and once it geminates it will produce a single type of gametophyte that produces female and male gametes. These types of plants also produce seeds. Whereas, Heterospory is a production of two different spores; megaspore that produces the female gametes and microspore produces male gametes. (A) It is valid (B) Valid, however homosporous plants do not produce seeds (C) It is invalid (D) Invalid because the heterspory produces only one spore b. Choose the correct statement about algae (A) their cells contain chloroplast (B) they do not include kelp (C) they lack membrane bound organelle (D) they are eukaryotes c. Choose 2 from the choices. Bryophytes propagate vegetatively in many ways. (A) by death and decay of the older portion of thallus (B) by…arrow_forward
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