Which of the following animal phyla is distinguished by a lack of tissues?
A) Roundworms
B) Annelids
C) Echinoderms
D) Sponges
E) Flatworms
D
Biology & Microbiology
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The pH at which most fungi thrive is
A. 3.0. B. 5.0. C. 7.0. D. 8.0.
Biology & Microbiology
A small tear in a ligament is called a
a. strain. b. fracture. c. bruise. d. dislocation. e. sprain.
Biology & Microbiology
Beta thalassemia is most often caused by
A. amino acid substitutions. B. extended chains in beta globin. C. lowered or absent synthesis of beta globin. D. excessive synthesis of beta globin. E. altered rates of oxygen transport.
Biology & Microbiology
The installation of tile drainage systems on farms removes wetlands from the Midwestern landscape. This with the loss of coastal marshes in the South are dramatically impacting
A) migratory waterfowl. B) blue crabs. C) salmon. D) crayfish.
Biology & Microbiology