An environmental testing laboratory is unable to identify a single-celled organism isolated from a well water sample. Inspection of the microorganism with a compound microscope reveals that it uses pseudopodia for movement and is not enclosed within a mineral shell. Based on this information, this organism can be classified to which supergroup?
A. Opisthokonta
B. Alveolata
C. Amoebozoa
D. Rhizaria
E. Excavata
C. Amoebozoa
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The element found in most abundance in living organisms is
A. calcium. B. iron. C. iodine. D. hydrogen. E. sodium.
Solenopsis invicta is a species of ant that was
introduced in the United States from
a. South America. b. Canada. c. Asia. d. Africa. e. Europe
The study of the genetic variability within a population and the forces that change allele frequencies is:
a. variation ecology. b. evolutionary genetics. c. population genetics. d. cytogenetics. e. allele genetics
The tissue lining the mouth, organs of the digestive system, and inner surfaces of the lungs is classified as
A) connective. B) epithelial. C) nervous. D) muscle. E) connective and nervous.