A substance that an organism needs for growth and survival but cannot make for itself is referred to as a(n) ____
a. chemical
b. nutrient
c. atom
d. DNA molecule
e. carbohydrate
ANSWER: b
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Recall that Archaea has three main groups. Which of the following is not one of the major archaeon groups?
A. Thaumarchaeota B. Crenarchaeota C. Euryarchaeota D. Firmicutes
In vascular plants, the ____ generation is larger, more complex, and longer lived than the ____ generation
a. haploid gametophyte; haploid sporophyte b. haploid gametophyte; diploid sporophyte c. diploid sporophyte; diploid gametophyte d. diploid sporophyte; haploid gametophyte e. haploid sporophyte; haploid gametophyte
Some diseases can cause long-term or permanent damage in the patient termed ________.
A. abscesses B. granulomas C. edema D. sequelae E. swollen lymph nodes
Which microscope can be used to visualize DNA or botulinum toxin?
A) compound light microscope B) phase-contrast microscope C) scanning tunneling microscope D) confocal microscope E) scanning electron microscope