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Mastering Biology Chapter 32 Questions and Answers 2024
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Mastering Biology Chapter 32
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Mastering Biology Chapter 32A graduate student finds an organism in a pond and thinks it is a freshwater sponge. A
postdoctoral student thinks it looks more like an aquatic fungus. How can they decide if
it is an animal or a fungus?
a. figure out whether it is autotrophic or heterotrophic
b. see if it reproduces sexually
c. determine whether it is unicellular or multicellular
d. look for cell walls under a microscope
e. see if it is a eukaryote or a prokaryote - answerd. look for cell walls under a
microscope
All animals can trace their lineage to a common ancestor that lived in the:
a. Neoproterozoic
b. Jurassic
c. Pliocene
d. Devonian
e. Cenozoic - answera. Neoproterozoic era
The earliest ancestors of about half of all extant animal phyla can be traced back to the
________ explosion.
a. Pleistocene
b. Devonian
c. Carboniferous
d. Cambrian
e. Jurassic - answerd. Cambrian
Examples of asymmetry - answersponge
Examples of radial symmetry - answerjelly, hydra
Examples of bilateral symmetry - answerTurtle, bobcat, snake, octopus
A diploblast is missing what germ layer? - answermesoderm
A pseudocoelom has the same function as a true coelom. True or false? - answerTrue
In a coelomate, the tissue lining the inner side of the body cavity arises from what? -
answerthe same germ layer as the tissue lining the outer side of the body cavity
protostome - answermouth from blastopore; spiral, determinate cleavage; coelom from
solid masses of mesoderm; triploblast
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