and Answers 100% Pass
Not present in all bacteria, the _________enables those bacteria that possess it to
germinate after exposure to harsh conditions, such as boiling: - ✔✔endospore
The mechanism whereby genes are transferred by viruses (phages) from one bacterium
to another
-intuition
-conjugation
-binary fission
-transformation
-transduction - ✔✔transduction
poisoned by O2 - ✔✔obligate anaerobe
uses light energy to drive the synthesis of organic compounds from CO2 -
✔✔photoautotroph
thrive in very hot environments - ✔✔extreme thermophile
uses CO2 to oxidize H2, releasing CH4 as a waste product - ✔✔methanogens
Which of the following descriptions of protists is incorrect? - ✔✔protists are prokaryotic
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,The intermediate host in the life cycle of a blood fluke is
A. an anopheles mosquito
B. a kissing bug
C. a sand fly
D. a gastropod mollusk
E. none of the above - ✔✔a gastropod mollusk
A __________ is a reproductive structure of fungi that develops from a mycelium. -
✔✔fruiting body
The mutualistic relationship between plant roots and fungi of the phylum
glomeromycota
Select one:
A. yeast
B. ectomycorrhizae
C. lichen
D. arbuscular mycorrhizae
E. mycosis - ✔✔D. arbuscular mycorrhizae
An adult animal that possesses bilateral symmetry is most certainly also
Select one:
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,A. a coelomate
B. highly cephalized
C. a deuterostome
D. the product of metamorphosis
E. triploblastic - ✔✔E. triploblastic
Which of the following combinations of phylum and description is incorrect?
Select one:
A. Platyhelminthes - flatworms, gastrovascular cavity, acoelomate
B. Nematoda - roundworms, pseudocoelomate
C. Echinodermata - bilateral symmetry as a larva, coelom present
D. Cnidaria - radial symmetry, polyp and medusa body forms
E. Porifera - gastrovascular cavity, coelom present - ✔✔E. Porifera - gastrovascular
cavity, coelom present
Sea anemones are most closely related to which group?
Select one:
A. fresh water hydras
B. sponges
C. barnacles
D. corals
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, E. lophophorates - ✔✔D. corals
Which of the following phyla have a complete digestive system (alimentary canal) with
mouth and anus?
Select one:
A. nematoda (round worms)
B. Platyhelminthes (flatworms)
C. Ctenophora (comb jellies)
D. Cnidaria (anemones, hydroids, corals, jellyfish, etc)
E. All of the above have blind-sac body plans - ✔✔A. nematoda (round worms)
Which of the following is not an advantage of the arthropod exoskeleton?
Select one:
A. provides protection from predators
B. provides rigid places for muscles to insert and against which they can do work
C. enhances sensory perception
D. prevents water loss
E. all of the above are an advantage of an exoskeleton - ✔✔C. enhances sensory
perception
Pharyngeal slits appear to have functioned first as
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