Biology 1407 Exam 2 Questions With Correct Answers
Clues from geology and paleontology suggest that simple cells or their precursors arose about how long ago? - ANS 4 Billion Years Which theory explains the origin of chloroplasts and mitochondria? - ANS Endosymbiotic Theory DNA that is separate and apart from the chromosome in a prokaryote is a(n) - ANS Plasmid The primary component making up the cell walls of bacteria is - ANS Peptidoglycan Prokaryotes lack which feature? - ANS Nucleus All protists - ANS Are eukaryotes Which protists produce much of the Earth's oxygen? - ANS Algea Microscopic reproductive cells produced by most fungi are - ANS Spores In fungi, a mass of aggregated hyphae is called a(n) - ANS Mycelium The parts of the plant that allow for gas exchange are the - ANS Stomata All land plants have a cuticle. True or False? - ANS True The two components of plant vascular systems are? - ANS Phloem and Xylem The fruits of plants primarily function in - ANS Protecting and dispersing seeds Cnidarians are animals found in ______ environments. - ANS Aquatic The most successful phylum with regards to diversity and numbers is? - ANS Anthropoda What are the three major body regions of many arthropods? - ANS Head, Thorax, and Abdomen
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