In order to survive and reproduce, a cell needs
a. an energy source.
b. raw materials.
c. a suitable environment.
d. DNA.
e. all of these
E
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As a result of the hormonal and neuroanatomical differences between the male and female brains of zebra finches,
____.
a. only males sing their species songs b. only females sing their species songs c. males sing their species songs at earlier ages than females d. females sing their species songs at earlier ages than males e. females only sing their species songs later in their lives
Living members of this group are often the dominant land plants in cool temperate zones, especially in
areas with poor soils. Among other products, they are important sources of lumber, paper pulp, resins, and turpentine.
a. lycophytes b. ferns c. gymnosperms d. bryophytes e. angiosperms
The above figure of a young cuckoo shoving its foster parents’ egg out of the nest best demonstrates _____
a. imprinting behavior b. instinctive behavior c. classical conditioning d. learned behavior e. operant conditioning
Resistance of Pseudomonas to a wide range of antibacterial agents is partly due to its
A) production of exoenzyme S. B) use of the Entner-Doudoroff pathway as its major means of catabolizing glucose. C) ability to utilize a wide range of organic and nitrogen sources. D) ability to metabolize many drugs. E) lack of special requirements for growth.