Plant Reproductive Structures
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Questions and Answers

What is the primary function of flowers in plants?

  • To reproduce by spores
  • To increase the height of the plant
  • To produce complex tissues
  • To enable zoophilous pollination (correct)
  • What is the name of the female organs in a plant?

  • Gametophyte
  • Pistil (correct)
  • Stamen
  • Rhizoid
  • What is the characteristic of leaves in Bryophyta plants?

  • They are multi-cellular
  • They are one cell thick (correct)
  • They have a vascular system
  • They have a root system
  • What is the result of fertilization in Bryophyta plants?

    <p>Formation of a zygote</p> Signup and view all the answers

    What is the purpose of meiosis in the life cycle of Bryophyta plants?

    <p>To end the diploid phase</p> Signup and view all the answers

    What is the characteristic of the rhizoid in Bryophyta plants?

    <p>It is a type of root</p> Signup and view all the answers

    What is the characteristic of the class Hydrozoa?

    <p>Both life stages appear</p> Signup and view all the answers

    What is the effect of global warming on coral reefs?

    <p>It causes the algae to leave the coral, leading to the death of polyps</p> Signup and view all the answers

    What is the characteristic of the phylum Platyhelminthes?

    <p>They have a bilaterally symmetrical body</p> Signup and view all the answers

    What is the role of the cytoskeleton in coral reefs?

    <p>It deposits on the bottom of the sea when the organism dies</p> Signup and view all the answers

    What is cephalization?

    <p>The development of a head with an adapted nervous system</p> Signup and view all the answers

    What is the characteristic of the class Cubozoa?

    <p>They have a squared shape</p> Signup and view all the answers

    What is the primary function of the joints in the exoskeleton of arachnids?

    <p>To allow for flexibility and movement of appendages</p> Signup and view all the answers

    What is the main reason for the reduction of intraspecific competition in arachnids?

    <p>Different life stages require different food sources</p> Signup and view all the answers

    What is unique about the eyes of arachnids in the class Arachnida?

    <p>They have simple eyes</p> Signup and view all the answers

    What is the function of the pedipalps in arachnids?

    <p>They are special appendages for feeding</p> Signup and view all the answers

    What is the primary function of the chelicerae in arachnids?

    <p>They are special feeding appendages</p> Signup and view all the answers

    What is a characteristic of the abdomen of arachnids in the class Arachnida?

    <p>It has no locomotive appendages</p> Signup and view all the answers

    What is the primary function of the notochord in chordates?

    <p>To give strength and support</p> Signup and view all the answers

    Which of the following features is NOT characteristic of chordates?

    <p>Solid ventral nervous chord</p> Signup and view all the answers

    What is the significance of pharyngeal slits in chordates?

    <p>They connect the exterior with the pharyngeal cavity</p> Signup and view all the answers

    Which of the following classes of chordates is characterized by the presence of feathers?

    <p>Aves</p> Signup and view all the answers

    What is the result of the development of the notochord in humans?

    <p>Formation of intervertebral discs</p> Signup and view all the answers

    What is the characteristic of the endoskeleton in chordates?

    <p>It is internal and allows for continuous growth</p> Signup and view all the answers

    What percentage of species live under the sea?

    <p>98%</p> Signup and view all the answers

    What is the main characteristic of Benthic lifeforms?

    <p>They live on the ocean floor</p> Signup and view all the answers

    What is the term for areas where sunlight reaches?

    <p>Photic zone</p> Signup and view all the answers

    What is the name given to animals that resemble each other but are found in distant places?

    <p>Disjunct distributions</p> Signup and view all the answers

    What is the term for the study of animals moving from one place to another, resulting in new species?

    <p>Biogeographical processes</p> Signup and view all the answers

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