Which of the following is the uppermost structure of the carpel where pollen is deposited?
a. stigma
b. stamen
c. style
d. sepal
a. stigma
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Laboratory isolation of Nanoarchaeum equitans requires the presence of
A) fatty acids. B) oxygen. C) Ignicoccus. D) sunlight.
What is the principle purpose of the muscular system?
As the baby's body temperature rose, I became very concerned that the increase in heat energy would
A. cause the baby's proteins to denature. B. force me to place her in a lukewarm bath to help remove the excess heat energy in a slow, controlled fashion. C. require me to give a non-aspirin medication that would help control fever. D. All the choices are correct.
Hagfish (Eptatretus cirrhauts) are a jawless marine vertebrate that are isotonic with their environment and are considered to be osmoconformers. How might this interesting adaptation limit the habitat that the hagfish can tolerate?
A) Hagfish are not limited by salinity. B) Osmoconformers do not face the same pressures as osmoregulators and can live in any marine environment. C) Individual hagfish will adapt to different salinities over their lifetime and, therefore, can inhabit any marine environment. D) Hagfish habitat is limited by the salinity of the environment.