A species that has population levels so low it faces extinction in all or part of its range is designated as ____
a. riparian
b. endemic
c. endangered
d. threatened
e. an indicator
ANSWER: c
Biology & Microbiology
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Carbohydrates are composed of:
A. amino acids. B. fatty acids and glycerol. C. nucleotides. D. monosaccharides.
Biology & Microbiology
Lizards and snakes are living members of the ____ lineage
a. Testudines b. Archosauria c. Squamata d. Sphenodontida e. Amphibia
Biology & Microbiology
Define the term "evaporite"
What will be an ideal response?
Biology & Microbiology
Stem cell research is important because __________.
A. it is aimed at treating the whole person—body and mind. B. stem cells can be used to generate virtually any type of specialized cell in the human body. C. it is essential to various types of preventive medical approaches. D. it is the only area of research that does not involve controversies.
Biology & Microbiology