PRACTICE MIDTERM 1

PRACTICE MIDTERM 1 - PRACTICE MIDTERM 1! 3. The first...

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PRACTICE MIDTERM 1!! 3. The first organisms to invade the ancestors of today’s eukaryotes are probably those that by endosymbiosis became a. heterocytes b. plastids c. mitochondria d. sporangia e. trichocysts a. orchids 16. you find 3 related species of flowering plants on an island (they are unknown elsewhere). Their karyotypes show their diploid nubers to be 16, 18, and 34, and you suspect the latter arose by allopolyploidy. How many chromosomes will the gametes of the 34- chromosome species contain? a. 68 b. 34 c. 17 d. 9 e. 8 22. Of humans and giant pandas belong to the same class, then they must belong to the same a. order b. family c. species d. phylum e. genus 25. Escherichia coli is a a. Proteobacteria b. Rickettsia c. Gram negative bacteria d. Cyanobacteria e. Bacteriophage 26. Which of the following statement is false? a. all Cyanobacteria have a nuclear membrane b. some cyanobacteria have photosynthetic plastids c. some cyanobacteria can fix atmospheric nitrogen d. all cyanobacteria have peptidoglycans in their cell walls e. some cyanobacteria are found in water
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27. the bioluminescent bacteria in the anglerfish lure are probably
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PRACTICE MIDTERM 1 - PRACTICE MIDTERM 1! 3. The first...

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