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Chapter 28 mastering biology exam questions and answers
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Chapter 28 mastering biology exam questions and answers
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Chapter 28 mastering biology examquestions and answers
Plastids that are surrounded by more than two membranes are evidence of - Answer -
secondary endosymbiosis
Biologists suspect that endosymbiosis gave rise to mitochon-dria before plastids partly
because - Answer -all eukaryotes have mitochondria (or their remnants), whereas many
eukaryotes do not have plastids
Which protists are in the same eukaryotic supergroup as land plants? - Answer -both
red algae and green algae
In life cycles with an alternation of generations, multicellular haploid forms alternate with
- Answer -multicellular diploid forms
Which of the features below are found in all protist lineages? - Answer -Mitochondria
Which group of organisms (ciliates, animals, or plants) has the most complex cells? -
Answer -Ciliates
Select the correct statement about photosynthesis by primary producers. - Answer -
Photosynthetic protists and prokaryotes carry out the majority of the photosynthesis in
aquatic communities.
Which of the following statements supports the hypothesis of an endosymbiotic origin of
mitochondria? - Answer -Each mitochondrion has its own DNA molecule
What advantage do organisms that reproduce sexually have over organisms that
reproduce asexually? - Answer -Their offspring may be more adaptable to changes in
the environment.
Which term describes the fusion of two gametes to form a diploid zygote? - Answer -
Syngamy
Which term describes the multicellular haploid form of a protist that shows alternation of
generations? - Answer -Gametophyte
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