notespart6

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University of South Florida, Tampa *

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2011

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Biology

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May 30, 2024

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docx

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2

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The conducting tissue found in vascular plants that functions in transportation of materials throughout the plant, but does not lend structural support to the stem is phloem A tracheid is a specialized vascular cell Plasmodium falciparum is a protistan parasite, borne by mosquitoes, that constitutes a serious health problem for humans. The disease it causes is: malaria Endosperm is tissue stored in seeds that provides nutrition for embryos. Which one of the following is NOT used by protists for protection against predators? shooting acids Ulva is a genus of algae in the phylum Chlorophyta. What characteristic does Ulva share with ferns The ability to synthesize organic nutrients using light Which of the following statements is the most accurate description of fruits and seeds? Fruits are structures that contain seeds and foster seed dispersal After a decline to a historic low about 300 million years ago, carbon dioxide levels in the Earth’s atmosphere rose again for a while. Hypothesize a reason why this occurred. Lower temperatures resulted in reduced plant growth; with less vegetation to absorb carbon dioxide, the carbon dioxide levels rose.  The plastids of kelps and other brown algae arose through the secondary endosymbiosis. What modern organisms are most closely related to the type of cell that eventually became these plastids? Chlamydomonas (Single-celled green algae) Plants share a most recent common ancestor with what group of protists? Green algae Which of the following statements best describes secondary endosymbiosis? A host cell ingests another cell already containing a primary symbiont. The photosynthetic systems of algae living in deeper water are adapted to absorb more of the light of which of the following colors? Blue-green The term angiosperm refers to  The enclosure of the seed within a fruit Which of these statements is most accurate about a blastopore? It occurs in both protostomes and deuterostomes
Triploblastic refers to animals that  Have three germ layers  The recent reassessment of animal classification is the result of Comparison of molecular data You discover a rare plant with white flowers that open at night and have a long, narrow floral tube. In developing a conservation plan for this species, what other organisms should you particularly focus on protecting in order to ensure this plant’s continued reproductive success? Moths  What type of flower should you plant in your garden if you are particularly interested in attracting butterflies?  Purple, tubular-shaped flowers with a light floral scent  Compare a pseudocoelom to a coelom.  A coelom is completely enclosed by mesoderm whereas pseudocoelom has an outer covering of mesoderm and an inner one of endoderm  Gymnosperm phyla include Cycadophyta, Ginkgophyta, Coniferophyta  If you were highly allergic to bee stings, which of the following would be dangerous for you to do? Wearing sweet smelling perfumes In conifers, microspores develop into Pollen grains  A scientist studying embryonic gene expression sees their marked gene become active on the blastopore. What might the result be if that gene mutated and the blastopore failed to fully form?  Both protostomes and deuterostomes could not form a normal digestive system without a blastopore  You are given a new animal species to study. You note that it possesses segmentation. Based entirely on the knowledge that it is segmented, to which phyla might the new species belong? Arthropoda, Chordata, Annelida  Ecdysis is  Molting of the exoskeleton  The function of nectar is  Attraction of pollinators  Among the mammals, only some primates (including most humans) have color vision. What was the likely advantage that probably drove the evolution of primate color vision? The ability to find ripe fruit 
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