When a hurricane destroys a forest and kills many of the organisms living there, it is referred to as
A. an extrinsic limiting factor.
B. a density-dependent limiting factor.
C. an intrinsic limiting factor.
D. None of these answers is correct.
A. an extrinsic limiting factor.
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Slime molds are in the supergroup
A. Opisthokonta B. Rhizaria C. Amoebozoa D. Stramenopila E. Alveolata
Describe the enzymatic digestion that takes place in each structure of the digestive tract
What will be an ideal response?
The percent oxygen saturation of hemoglobin is highest in the:
a. tissues where oxygen concentration is lowest. b. tissues where oxygen concentration is highest. c. venules where oxygen concentration is lowest. d. pulmonary capillaries where oxygen concentration is lowest. e. pulmonary capillaries where oxygen concentration is highest.
Which species is considered most ancient?
a. Homo erectus b. Australopithecus afarensis c. Australopithecus africanus d. Homo sapiens e. Sahelanthropus tchadensis