Which of the following is a habitat?
a. predator
b. intestinal tract
c. parasite
d. producer
e. decomposer
B
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The black spots seen on a moldy piece of bread are which part of a zygomycete?
A. the sporangia B. the hyphae C. the mycelium D. the rhizoids E. the zygotes
Methanogens are classified as ____
a. photoautotrophs b. chemoautotrophs c. photoheterotrophs d. chemoheterotrophs e. chemotrophs
In producing a genomic library, human DNA and plasmid DNA must first be treated with:a
the same restriction enzyme. b. different restriction enzymes. c. the same DNA ligase. d. different DNA ligases. e. cosmid cloning vectors
Which is an evolutionary trend in the development of nervous systems for bilaterally symmetrical animals?
a. Loss of cephalization b. Decreased number of interneurons c. Greater resting membrane potential d. Increased presence of ganglia e. Increased size of neuronal cell bodies